DG4000 User Manual
RIGOL
User’s Guide
DG4000 Series
Function/Arbitrary Waveform Generator
Mar. 2014
RIGOL Technologies, Inc.
RIGOL
Guaranty and Declaration
Copyright
© 2011 RIGOL Technologies, Inc. All Rights Reserved.
Trademark Information
RIGOL is a registered trademark of RIGOL Technologies, Inc.
Publication Number
UGB04107-1110
Notices
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RIGOL products are protected by patent law in and outside of P.R.C.
RIGOL reserves the right to modify or change parts of or all the
specifications and pricing policies at company’s sole decision.
Information in this publication replaces all previously corresponding material.
RIGOL shall not be liable for losses caused by either incidental or
consequential in connection with the furnishing, use or performance of this
manual as well as any information contained.
Any part of this document is forbidden to be copied or photocopied or
rearranged without prior written approval of RIGOL.
Product Certification
RIGOL guarantees this product conforms to the national and industrial standards
in China as well as the ISO9001:2008 standard and the ISO14001:2004 standard.
Other international standard conformance certification is in progress.
Contact Us
If you have any problem or requirement when using our products or this manual,
please contact RIGOL.
E-mail: [email protected]
Websites: www.rigol.com
DG4000 Series User’s Guide
I
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Safety Requirement
General Safety Summary
Please review the following safety precautions carefully before putting the
instrument into operation so as to avoid any personal injuries or damages to the
instrument and any product connected to it. To prevent potential hazards, please
use the instrument only specified by this manual.
Use Proper Power Cord.
Only the power cord designed for the instrument and authorized for use within the
local country could be used.
Ground The Instrument.
The instrument is grounded through the Protective Earth lead of the power cord.
To avoid electric shock, it is essential to connect the earth terminal of power cord
to the Protective Earth terminal before any inputs or outputs.
Connect the Probe Correctly.
If a probe is used, do not connect the ground lead to high voltage since it has the
isobaric electric potential as ground.
Observe All Terminal Ratings.
To avoid fire or shock hazard, observe all ratings and markers on the instrument
and check your manual for more information about ratings before connecting.
Use Proper Overvoltage Protection.
Make sure that no overvoltage (such as that caused by a thunderstorm) can reach
the product, or else the operator might expose to danger of electrical shock.
Do Not Operate Without Covers.
Do not operate the instrument with covers or panels removed.
Do Not Insert Anything into the Holes of Fan.
Do not insert anything into the holes of the fan to avoid damaging the instrument.
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DG4000 Series User’s Guide
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Use Proper Fuse.
Please use the specified fuses.
Avoid Circuit or Wire Exposure.
Do not touch exposed junctions and components when the unit is powered.
Do Not Operate With Suspected Failures.
If you suspect damage occurs to the instrument, have it inspected by qualified
service personnel before further operations. Any maintenance, adjustment or
replacement especially to circuits or accessories must be performed by RIGOL
authorized personnel.
Keep Well Ventilation.
Inadequate ventilation may cause increasing of temperature or damages to the
device. So please keep well ventilated and inspect the intake and fan regularly.
Do Not Operate in Wet Conditions.
In order to avoid short circuiting to the interior of the device or electric shock,
please do not operate in a humid environment.
Do Not Operate in an Explosive Atmosphere.
In order to avoid damages to the device or personal injuries, it is important to
operate the device away from an explosive atmosphere.
Keep Product Surfaces Clean and Dry.
To avoid the influence of dust and/or moisture in air, please keep the surface of
device clean and dry.
Electrostatic Prevention.
Operate in an electrostatic discharge protective area environment to avoid
damages induced by static discharges. Always ground both the internal and
external conductors of the cable to release static before connecting.
Proper Use of Battery.
If a battery is supplied, it must not be exposed to high temperature or in contact
with fire. Keep it out of the reach of children. Improper change of battery (note:
lithium battery) may cause explosion. Use RIGOL specified battery only.
DG4000 Series User’s Guide
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Handling Safety.
Please handle with care during transportation to avoid damages to buttons, knob
interfaces and other parts on the panels.
IV
DG4000 Series User’s Guide
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Safety Terms and Symbols
Terms Used in this Manual. These terms may appear in this manual:
WARNING
Warning statements indicate the conditions or practices that could result
in injury or loss of life.
CAUTION
Caution statements indicate the conditions or practices that could result
in damage to this product or other property.
Terms Used on the Product. These terms may appear on the Product:
DANGER
WARNING
CAUTION
indicates an injury or hazard may immediately happen.
indicates an injury or hazard may be accessible potentially.
indicates potential damage to the instrument or other property might
occur.
Symbols Used on the Product. These symbols may appear on the product:
Hazardous
Voltage
Safety
Warning
DG4000 Series User’s Guide
Protective
Earth
Terminal
Chassis
Ground
Test
Ground
V
RIGOL
Allgemeine Sicherheits Informationen
Überprüfen Sie diefolgenden Sicherheitshinweise
sorgfältigumPersonenschädenoderSchäden am Gerätundan damit verbundenen
weiteren Gerätenzu vermeiden. Zur Vermeidung vonGefahren, nutzen Sie bitte das
Gerät nur so, wiein diesem Handbuchangegeben.
Um Feuer oder Verletzungen zu vermeiden, verwenden Sie ein
ordnungsgemäßes Netzkabel.
Verwenden Sie für dieses Gerät nur das für ihr Land zugelassene und genehmigte
Netzkabel.
Erden des Gerätes.
Das Gerät ist durch den Schutzleiter im Netzkabel geerdet. Um Gefahren durch
elektrischen Schlag zu vermeiden, ist es unerlässlich, die Erdung durchzuführen.
Erst dann dürfen weitere Ein- oder Ausgänge verbunden werden.
Anschluss einesTastkopfes.
Die Erdungsklemmen der Sonden sindauf dem gleichen Spannungspegel des
Instruments geerdet. SchließenSie die Erdungsklemmen an keine hohe Spannung
an.
Beachten Sie alle Anschlüsse.
Zur Vermeidung von Feuer oder Stromschlag, beachten Sie alle Bemerkungen und
Markierungen auf dem Instrument. Befolgen Sie die Bedienungsanleitung für
weitere Informationen, bevor Sie weitere Anschlüsse an das Instrument legen.
Verwenden Sie einen geeigneten Überspannungsschutz.
Stellen Sie sicher, daß keinerlei Überspannung (wie z.B. durch Gewitter verursacht)
das Gerät erreichen kann. Andernfallsbestehtfür den Anwender die
GefahreinesStromschlages.
Nicht ohne Abdeckung einschalten.
Betreiben Sie das Gerät nicht mit entfernten Gehäuse-Abdeckungen.
Betreiben Sie das Gerät nicht geöffnet.
Der Betrieb mit offenen oder entfernten Gehäuseteilen ist nicht zulässig. Nichts in
entsprechende Öffnungen stecken (Lüfter z.B.)
Passende Sicherung verwenden.
Setzen Sie nur die spezifikationsgemäßen Sicherungen ein.
VI
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Vermeiden Sie ungeschützte Verbindungen.
Berühren Sie keine unisolierten Verbindungen oder Baugruppen, während das
Gerät in Betrieb ist.
Betreiben Sie das Gerät nicht im Fehlerfall.
Wenn Sie am Gerät einen Defekt vermuten, sorgen Sie dafür, bevor Sie das Gerät
wieder betreiben, dass eine Untersuchung durch qualifiziertes
Kundendienstpersonal durchgeführt wird.Jedwede Wartung, Einstellarbeiten oder
Austausch von Teilen am Gerät, sowie am Zubehör dürfen nur von RIGOL
autorisiertem Personal durchgeführt werden.
Belüftung sicherstellen.
Unzureichende Belüftung kann zu Temperaturanstiegen und somit zu thermischen
Schäden am Gerät führen. Stellen Sie deswegen die Belüftung sicher und
kontrollieren regelmäßig Lüfter und Belüftungsöffnungen.
Nicht in feuchter Umgebung betreiben.
Zur Vermeidung von Kurzschluß im Geräteinneren und Stromschlag betreiben Sie
das Gerät bitte niemals in feuchter Umgebung.
Nicht in explosiver Atmosphäre betreiben.
Zur Vermeidung von Personen- und Sachschäden ist es unumgänglich, das Gerät
ausschließlich fernab jedweder explosiven Atmosphäre zu betreiben.
Geräteoberflächen sauber und trocken halten.
Um den Einfluß von Staub und Feuchtigkeit aus der Luft auszuschließen, halten Sie
bitte die Geräteoberflächen sauber und trocken.
Schutz gegen elektrostatische Entladung (ESD).
Sorgen Sie für eine elektrostatisch geschützte Umgebung, um somit Schäden und
Funktionsstörungen durch ESD zu vermeiden. Erden Sie vor dem Anschluß immer
Innen- und Außenleiter der Verbindungsleitung, um statische Aufladung zu
entladen.
Die richtige Verwendung desAkku.
Wenneine Batterieverwendet wird, vermeiden Sie hohe Temperaturen bzw. Feuer
ausgesetzt werden.Bewahren Sie es außerhalbder Reichweitevon Kindern
auf.UnsachgemäßeÄnderung derBatterie(Anmerkung:Lithium-Batterie)kann zu
einer Explosion führen. VerwendenSie nur von RIGOLangegebenenAkkus.
Sicherer Transport.
Transportieren Sie das Gerät sorgfältig (Verpackung!), um Schäden an
Bedienelementen, Anschlüssen und anderen Teilen zu vermeiden.
DG4000 Series User’s Guide
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Sicherheits Begriffe und Symbole
Begriffe in diesem Guide. Diese Begriffe können in diesem Handbuch
auftauchen:
WARNING
Die Kennzeichnung WARNING beschreibt Gefahrenquellen die leibliche
Schäden oder den Tod von Personen zur Folge haben können.
CAUTION
Die Kennzeichnung Caution (Vorsicht) beschreibt Gefahrenquellen die
Schäden am Gerät hervorrufen können.
Begriffe auf dem Produkt. Diese Bedingungen können auf dem Produkt
erscheinen:
DANGER
WARNING
CAUTION
weist auf eine Verletzung oder Gefährdung hin, die sofort
geschehen kann.
weist auf eine Verletzung oder Gefährdung hin, die möglicherweise
nicht sofort geschehen.
bedeutet, dass eine mögliche Beschädigung des Instruments oder
anderer Gegenstände auftreten kann.
Symbole auf dem Produkt.
erscheinen:
GefährlicheS
pannung
VIII
SicherheitsHinweis
Diese Symbole können auf dem Produkt
Schutz-erde
Gehäusemasse
Erde
DG4000 Series User’s Guide
RIGOL
General Care and Cleaning
General Care:
Do not store or leave the instrument in where the instrument will be exposed to
direct sunlight for long periods of time.
Cleaning:
Clean the instrument regularly according to its operating conditions. To clean the
exterior surface, perform the following steps:
1. Disconnect the instrument from all power sources.
2. Clean the loose dust on the outside of the instrument with a lint- free cloth
(with a mild detergent or water). When cleaning the LCD, take care to avoid
scarifying it.
CAUTION
To avoid damages to the instrument, do not expose them to liquids which
have causticity.
WARNING
To avoid injury resulting from short circuit, make sure the instrument is
completely dry before reconnecting to a power source.
DG4000 Series User’s Guide
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Environmental Considerations
The following symbol indicates that this product complies with the requirements in
WEEE Directive 2002/96/EC.
Product End-of-Life Handling
The equipment may contain substances that could be harmful to the environment or
human health. In order to avoid release of such substances into the environment and
harm to human health, we encourage you to recycle this product in an appropriate
system that will ensure that most of the materials are reused or recycled
appropriately. Please contact your local authorities for disposal or recycling
information.
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DG4000 Series Overview
DG4000 is a dual-channel economical, high-performance and multifunctional
generator that combines many functions in one, including Function Generator,
Arbitrary Waveform Generator, Pulse Generator, Harmonics Generator,
Analog/Digital modulator and Counter. All the models of DG4000 provide two
channels with equivalent functions and adjustable phase between the two
channels.
Main Features:
 Adopt the Direct Digital Synthesizer (DDS) technology and provide stable,
precise, pure and low distortion signals.
 7 inches, 16M true color TFT LCD, displaying parameters and graphics of the
two channels at the same time.
 160MHz, 100MHz or 60MHz maximum output frequency (for Sine), 500MSa/s
sample rate, 14bits vertical resolution.
 Precisely adjust the phases of the two channels.
 150 waveforms or functions: Sine, Square, Ramp, Pulse, Noise, Sinc,
Exponential Rise, Exponential Fall, ECG, Gauss, Haversine, Lorentz, Dual
Tones, Harmonics, Video Signal, Radar Signal, DC etc.
 Enable to edit 16kpts arbitrary waveform and support point by point output of
arbitrary waveform.
 Rise Time and Fall Time of the Pulse could be adjusted separately.
 Enable to output harmonic with specified order and amplitude, enable to
output up to 16th order of harmonic.
 Support to superpose Gauss Noise onto basic waveforms.
 Various modulation types: AM, FM, PM, ASK, FSK, PSK, BPSK, QPSK, 3FSK,
4FSK, OSK and PWM modulations.
 Support frequency sweep and Burst output.
 Dual channels can perform internal/external modulation and
internal/external/manual trigger separately or at the same time.
 Dual channels can output sync signal separately or at the same time.
 Support to enable Frequency Coupling, Phase Coupling and Amplitude
Coupling separately or at the same time.
 Provide 7digits/s, 200MHz counter; enable to measure various parameters of
external signal such as frequency, period, duty cycle, positive pulse width and
negative pulse width; provide statistic function of measurement results.
 Support waveform copy and state copy between channels.
 Enable to store and recall 10 arbitrary waveform data files and 10 instrument
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XII
state files as well as recall Csv and Txt files stored in USB storage device.
Plenty of standard interfaces: USB Host, USB Device and LAN
Abundant I/O: waveform output, sync signal output, modulation input, 10MHz
clock input/output, trigger input/output.
Support USB storage device using FAT file system.
Support remote control through 10/100M Ethernet web.
Conform to LXI-C instrument standards (Version 1.2).
Provide Chinese and English built-in help and input methods.
Provide powerful waveform editing PC software.
Provide security lock hole.
DG4000 Series User’s Guide
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Document Overview
Subjects in this Manual:
Chapter 1 Quick Start
This chapter introduces the front/rear panel, user interface and parameter setting
method, as well as announcements during first use of the instrument.
Chapter 2 Basic Waveform Output
This chapter introduces how to output basic waveforms, e.g. Sine and Square.
Chapter 3 Arbitrary Waveform Output
This chapter introduces how to output built-in or user-defined waveforms.
Chapter 4 Harmonics Output
This chapter introduces how to output harmonics with specified order.
Chapter 5 Modulated Waveform Output
This chapter introduces how to output modulated waveforms, e.g. AM, FSK and
PWM.
Chapter 6 Sweep
This chapter introduces how to generate a frequency Sweep.
Chapter 7 Burst
This chapter introduces how to generate a Burst waveform.
Chapter 8 Counter
This chapter introduces how to use the counter.
Chapter 9 Store and Recall
This chapter introduces how to store and recall the waveform data or the
instrument state settings.
Chapter 10 Utility and System Settings
This chapter introduces some utility functions and setting methods of system
parameters.
Chapter 11 Remote Control
This chapter introduces how to control the instrument remotely.
Chapter 12 Troubleshooting
This chapter lists commonly encountered failures that may appear during the use
of the generator and their solutions.
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Chapter 13 Specifications
This chapter lists the performances and general specifications of the instrument.
Chapter 14 Appendix
This chapter provides the information about the options and accessories, as well as
other points for attention.
Format Conventions in this Manual:
1.
Buttons:
The function key at the front panel is denoted by the format of “Text Box +
Button Name (Bold)” in the manual, for example, Sine.
2.
Menu Softkey:
The menu softkey is denoted by the format of “Character Shading + Menu Word
(Bold)” in the manual, for example, Freq.
3.
Connector
The connector at the front or rear panel is denoted by the format of
“Brackets+Connector Name (Bold)” in the manual, for example, [Sync].
4.
Operation Steps:
The next step of the operation is denoted by an arrow “” in the manual. For
example, Sine  Freq represents pressing the function key Sine at the front
panel and then pressing the menu softkey Freq.
Content Conventions in this Manual:
DG4000 series cover the following models. This manual takes DG4162 as an
example.
XIV
Model
Channels
Max. Frequency
Sample Rate
DG4062
2
60MHz
500MSa/s
DG4102
2
100MHz
500MSa/s
DG4162
2
160MHz
500MSa/s
DG4000 Series User’s Guide
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Contents
Guaranty and Declaration .........................................................................I
Safety Requirement ................................................................................ II
General Safety Summary ........................................................................... II
Safety Terms and Symbols ........................................................................ V
Allgemeine Sicherheits Informationen ........................................................ VI
Sicherheits Begriffe und Symbole ............................................................VIII
General Care and Cleaning ....................................................................... IX
Environmental Considerations .................................................................... X
DG4000 Series Overview........................................................................ XI
Document Overview............................................................................ XIII
Chapter 1 Quick Start ......................................................................... 1-1
General Inspection ................................................................................ 1-2
To Adjust the Supporting Legs ................................................................ 1-3
Appearance and Dimensions ................................................................... 1-4
Front Panel ........................................................................................... 1-6
Rear Panel ...........................................................................................1-13
To Connect to Power.............................................................................1-16
To Replace the Fuse .............................................................................1-17
User Interface ......................................................................................1-18
Parameter Setting Method .....................................................................1-21
Numeric Keyboard..........................................................................1-21
Direction keys and Knob .................................................................1-22
To Use the Built-In Help ........................................................................1-23
To Use the Security Lock .......................................................................1-24
To Use the Rack Mount Kit ....................................................................1-25
Kit Parts List ..................................................................................1-25
Installation Tool .............................................................................1-26
Installation Space ..........................................................................1-27
Installation Procedure ....................................................................1-29
Chapter 2 Basic Waveform Output ..................................................... 2-1
To Select Output Channel ....................................................................... 2-2
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To Select Basic Waveform ....................................................................... 2-3
To Set Frequency ................................................................................... 2-4
To Set Amplitude.................................................................................... 2-5
To Set DC Offset Voltage ......................................................................... 2-7
To Set Start Phase.................................................................................. 2-8
Align Phase ........................................................................................... 2-9
To Set Duty Cycle ................................................................................. 2-11
To Set Symmetry.................................................................................. 2-12
To Set Parameters for Pulse .................................................................. 2-13
Pulse Width/Duty Cycle .................................................................. 2-13
Leading/Trailing Edge Time............................................................. 2-14
Delay ........................................................................................... 2-15
Recover Delay ............................................................................... 2-15
To Enable Output ................................................................................. 2-17
Basic Waveform Output Example ........................................................... 2-18
Chapter 3 Arbitrary Waveform Output ............................................... 3-1
To Enable Arbitrary Waveform ................................................................. 3-2
Point By Point Output Mode .................................................................... 3-3
To Select Arbitrary Waveform .................................................................. 3-4
Built-In Waveform............................................................................ 3-4
Stored Waveform ............................................................................. 3-9
Volatile Waveform ............................................................................ 3-9
To Create New Arbitrary Waveform ........................................................ 3-10
Example: Edit Points ...................................................................... 3-13
Example: Edit Block ....................................................................... 3-15
To Edit Arbitrary Waveform ................................................................... 3-17
Chapter 4 Harmonic Output ............................................................... 4-1
Overview............................................................................................... 4-2
To Set Fundamental Waveform Parameters ............................................... 4-2
To Set Harmonic Order ........................................................................... 4-3
To Select Harmonic Type ......................................................................... 4-3
To Set Harmonic Amplitude ..................................................................... 4-4
To Set Harmonic Phase ........................................................................... 4-5
Chapter 5 Modulated Waveform Output ............................................ 5-1
AM ....................................................................................................... 5-2
To Select AM Modulation .................................................................. 5-2
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To Select Carrier Waveform Shape .................................................... 5-2
To Set Carrier Frequency ................................................................. 5-2
To Select Modulating Waveform Source ............................................. 5-3
To Set Modulating Waveform Frequency ............................................ 5-4
To Set Modulation Depth ................................................................. 5-4
FM ....................................................................................................... 5-5
To Select FM Modulation .................................................................. 5-5
To Select Carrier Waveform Shape .................................................... 5-5
To Set Carrier Frequency ................................................................. 5-5
To Select Modulating Waveform Source ............................................. 5-6
To Set Modulating Waveform Frequency ............................................ 5-7
To Set Frequency Deviation.............................................................. 5-7
PM ....................................................................................................... 5-8
To Select PM Modulation .................................................................. 5-8
To Select Carrier Waveform Shape .................................................... 5-8
To Set Carrier Frequency ................................................................. 5-8
To Select Modulating Waveform Source ............................................. 5-9
To Set Modulating Waveform Frequency ........................................... 5-10
To Set Phase Deviation ...................................................................5-10
ASK.....................................................................................................5-11
To Select ASK Modulation ...............................................................5-11
To Select Carrier Waveform Shape ...................................................5-11
To Set Carrier Amplitude .................................................................5-11
To Select Modulating Waveform Source ............................................ 5-12
To Set ASK Rate.............................................................................5-12
To Set Modulating Amplitude ...........................................................5-13
To Set Modulating Polarity ..............................................................5-13
FSK .....................................................................................................5-14
To Select FSK Modulation ................................................................5-14
To Select Carrier Waveform Shape ...................................................5-14
To Set Carrier Frequency ................................................................5-14
To Select Modulating Waveform Source ............................................ 5-15
To Set FSK Rate .............................................................................5-16
To Set Hop Frequency ....................................................................5-16
To Set Modulating Polarity ..............................................................5-16
PSK .....................................................................................................5-17
To Select PSK Modulation................................................................5-17
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To Select Carrier Waveform Shape................................................... 5-17
To Set Carrier Phase ...................................................................... 5-17
To Select Modulating Waveform Source............................................ 5-18
To Set PSK Rate ............................................................................ 5-18
To Set PSK Phase........................................................................... 5-19
To Set Modulating Polarity .............................................................. 5-19
BPSK .................................................................................................. 5-20
To Select BPSK Modulation ............................................................. 5-20
To Select Carrier Waveform Shape................................................... 5-20
To Set Carrier Phase ...................................................................... 5-20
To Select Modulating Waveform Source............................................ 5-21
To Set BPSK Rate........................................................................... 5-21
To Set BPSK Phase......................................................................... 5-22
QPSK .................................................................................................. 5-23
To Select QPSK Modulation ............................................................. 5-23
To Select Carrier Waveform Shape................................................... 5-23
To Set Carrier Phase ...................................................................... 5-23
To Select Modulating Waveform Source............................................ 5-24
To Set QPSK Rate .......................................................................... 5-24
To Set QPSK Phases ....................................................................... 5-24
3FSK ................................................................................................... 5-25
To Select 3FSK Modulation.............................................................. 5-25
To Select Carrier Waveform Shape................................................... 5-25
To Set Carrier Frequency ................................................................ 5-25
Modulation Source ......................................................................... 5-26
To Set 3FSK Rate ........................................................................... 5-26
To Set Hop Frequencies .................................................................. 5-26
4FSK ................................................................................................... 5-27
To Select 4FSK Modulation.............................................................. 5-27
To Select Carrier Waveform Shape................................................... 5-27
To Set Carrier Frequency ................................................................ 5-27
Modulation Source ......................................................................... 5-28
To Set 4FSK Rate ........................................................................... 5-28
To Set Hop Frequencies .................................................................. 5-28
OSK .................................................................................................... 5-29
To Select OSK Modulation ............................................................... 5-29
To Select Carrier Waveform Shape................................................... 5-30
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To Set Carrier Frequency ................................................................5-30
To Select Modulating Waveform Source ............................................ 5-30
To Set OSK Rate ............................................................................5-31
To Set Oscillate Period ....................................................................5-31
PWM ...................................................................................................5-32
To Select PWM Modulation ..............................................................5-32
To Select Carrier Waveform Shape ...................................................5-32
To Set Pulse Width/Duty Cycle ........................................................5-32
To Select Modulating Waveform Source ............................................ 5-33
To Set Modulating Waveform Frequency ........................................... 5-33
To Set Pulse Width/Duty Cycle Deviation .......................................... 5-34
Chapter 6 Sweep ................................................................................ 6-1
To Enable Frequency Sweep ................................................................... 6-2
Start Frequency and End Frequency ........................................................ 6-2
Center Frequency and Frequency Span .................................................... 6-3
Sweep Type .......................................................................................... 6-4
Linear Sweep.................................................................................. 6-4
Log Sweep ..................................................................................... 6-5
Step Sweep .................................................................................... 6-6
Sweep Time .......................................................................................... 6-7
Return Time.......................................................................................... 6-8
Mark Frequency .................................................................................... 6-8
Start Hold ............................................................................................. 6-9
End Hold .............................................................................................6-10
Sweep Trigger Source ...........................................................................6-10
Trigger Output Edge .............................................................................6-11
Chapter 7 Burst .................................................................................. 7-1
To Enable Burst Mode ............................................................................ 7-2
Burst Type ............................................................................................ 7-2
N Cycle Burst.................................................................................. 7-2
Infinite Burst .................................................................................. 7-3
Gated Burst .................................................................................... 7-4
Burst Phase .......................................................................................... 7-6
Burst Period .......................................................................................... 7-6
Gated Polarity ....................................................................................... 7-6
Burst Delay ........................................................................................... 7-7
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Burst Trigger Source ............................................................................... 7-7
Trigger Output Edge ............................................................................... 7-8
Chapter 8 Counter.............................................................................. 8-1
To Enable the Counter ............................................................................ 8-2
To Set the Counter ................................................................................. 8-3
Statistic ................................................................................................. 8-5
Chapter 9 Store and Recall ................................................................ 9-1
Storage System Overview ....................................................................... 9-2
To Select File Type ................................................................................. 9-4
To Select Browser Type ........................................................................... 9-5
File Operation ........................................................................................ 9-6
Save ............................................................................................... 9-6
Recall ............................................................................................. 9-8
Copy .............................................................................................. 9-9
Paste .............................................................................................. 9-9
Delete ............................................................................................ 9-9
New Directory ............................................................................... 9-10
Chapter 10
Utility and System Settings ....................................... 10-1
Overview............................................................................................. 10-2
Channel Setting ................................................................................... 10-3
Sync ............................................................................................. 10-3
Sync Polarity ................................................................................. 10-4
Output Polarity .............................................................................. 10-5
Resistance Setting ......................................................................... 10-5
Noise Setting................................................................................. 10-6
Noise Scale ................................................................................... 10-6
To Use the External Power Amplifier (Option) ......................................... 10-7
To Configure the Remote Interface ...................................................... 10-12
LAN Setting ................................................................................. 10-12
To Set USB Device Type ............................................................... 10-17
System Setting................................................................................... 10-18
Number Format ........................................................................... 10-18
Language ................................................................................... 10-19
Power On Setting......................................................................... 10-19
Power Setting.............................................................................. 10-19
Brightness .................................................................................. 10-20
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Beeper ........................................................................................ 10-20
Screen Saver ............................................................................... 10-20
Clock Source ............................................................................... 10-20
System Information...................................................................... 10-22
Print.................................................................................................. 10-23
Test/Cal ............................................................................................. 10-25
Channel Coupling ............................................................................... 10-26
Channel Copy..................................................................................... 10-29
User-defined Waveform Key ................................................................ 10-30
Restore Default .................................................................................. 10-32
Chapter 11
Remote Control .......................................................... 11-1
Remote Control Overview ......................................................................11-2
Remote Control Mode ...........................................................................11-3
User-defined Programming .............................................................11-3
To Use PC Software ........................................................................11-7
Chapter 12
Troubleshooting ......................................................... 12-1
Chapter 13
Specifications............................................................. 13-1
Chapter 14
Appendix .................................................................... 14-1
Appendix A: Options and Accessories .....................................................14-1
Appendix B: Power Amplifier Specifications ............................................. 14-2
Appendix C: Warranty ...........................................................................14-4
Index ....................................................................................................... 1
DG4000 Series User’s Guide
XXI
Chapter 1 Quick Start
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Chapter 1 Quick Start
This chapter introduces the front/rear panel, user interface and parameter setting
method, as well as announcements during first use of the instrument.
Subjects in this chapter:












General Inspection
To Adjust the Supporting Legs
Dimensions
Front Panel
Rear Panel
To Connect to Power
To Replace the Fuse
User Interface
Parameter Setting Method
To Use the Built-In Help
To Use the Security Lock
To Use the Rack Mount Kit
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Chapter 1 Quick Start
General Inspection
1.
Inspect the shipping container for damage.
If there are damages in the container or foam, keep them until the whole
machine and the accessories pass the electrical and mechanical tests.
If your instrument has damaged during shipping, please contact your shipper
and carrier for compensation. RIGOL will provide no free repair or
replacement.
2. Inspect the instrument.
In case of any mechanical damage or defect, or if the instrument does not
operate properly or pass the electrical and mechanical tests, contact your local
sales representative of RIGOL.
3. Check the Accessories
If the contents are incomplete or damaged, please contact your local sales
representative of RIGOL.
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Chapter 1 Quick Start
To Adjust the Supporting Legs
DG4000 allows users to unfold the supporting legs as stands to tilt the generator
upwards for easier operation and observation during operation (as shown in Figure
1-1). Users can fold the supporting legs for easier storage or carry when the
instrument is not in use (as shown in Figure 1-2).
Supporting Legs
Figure 1-1 Unfold the Supporting Legs
Figure 1-2 Fold the Supporting Legs
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Chapter 1 Quick Start
Appearance and Dimensions
The appearance and dimensions of DG4000 are as shown in Figure 1-3 and Figure
1-4 and the unit is mm.
Figure 1-3 Front View
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Chapter 1 Quick Start
153
160.7
116.7
104.9
100
12
Figure 1-4 Side View
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Chapter 1 Quick Start
Front Panel
The front panel of DG4000 is shown below.
18. LCD
1. Power Key 2. USB Host
17. Shortcuts/Utility
16. Return
3. Menu Softkey
15. Modes
14. Waveforms
5. CH1 Output
4. Page Up/Down 6. CH1 Sync Output
13. Direction
12. Knob
Keys
7. CH2 Output
8. CH2 Sync Output
9. Channels Control
10. Counter
11. Numeric
Keyboard
Figure 1-5 DG4000 Front Panel
1. Power Key
The power softkey is used to turn the generator on or off. When the power
softkey is turned off, the generator is in standby mode and the generator is in
power-off mode only when the power cable at the rear panel is pulled out.
Users can enable or disable the function of this softkey. When enabled, users
need to press this softkey to start the instrument after power-on; when
disabled, the instrument starts automatically after power-on.
2. USB Host
Support FAT file format USB storage device. Read the waveform or state files
from the USB storage device, or store the current instrument state and edited
waveform data into the USB storage device, or store the content currently
displayed on the screen in specified picture format (.Bmp or .Jpeg) in USB
storage device.
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3. Menu Softkey
Correspond to the left menus respectively. Press any softkey to activate the
corresponding menu.
4. Page Up/Down
Open the previous or next page of the current function menu.
5. CH1 Output
BNC connector with 50Ω nominal output impedance.
When Output1 is enabled (the backlight turns on), this connector output
waveform according to the current configuration of CH1.
6. CH1 Sync Output
BNC connector with 50Ωnominal output impedance.
When the sync output of CH1 is enabled, this connector outputs the sync
signal corresponding to the current settings of CH1 (refer to the introduction in
Sync).
7. CH2 Output
BNC connector with 50Ωnominal output impedance.
When Output2 is enabled (the backlight turns on), this connector output
waveform according to the current configuration of CH2.
8. CH2 Sync Output
BNC connector with 50Ωnominal output impedance.
When the sync output of CH2 is enabled, this connector outputs the sync
signal corresponding to the current settings of CH2 (refer to the introduction in
Sync).
9. Channels Control
CH1: used to select CH1. When CH1 is selected (the backlight turns on), users
can set the waveform and parameters of CH1.
CH2: used to select CH2. When CH2 is selected (the backlight turns on), users
can set the waveform and parameters of CH2.
Trigger1: in sweep or burst mode, it is used to trigger CH1 to generate a
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Chapter 1 Quick Start
sweep or burst output manually (only when Output1 is enabled).
Trigger2: in sweep or burst mode, it is used to trigger CH2 to generate a
sweep or burst output manually (only when Output2 is enabled).
Output1: enable or disable the output of CH1.
Output2: enable or disable the output of CH2.
CH1 CH2: execute channel copy (refer to the introductions in Channel
Copy).
10. Counter
Press Counter to turn the counter on or off. When the counter is turned on,
the backlight of the key is illuminated and the left indicator flickers. If the
counter interface is currently displayed, press this key again to disable counter
function; if the screen currently displays interfaces other than the counter
interface, press this key again to switch to counter interface (refer to the
introductions in Counter).
11. Numeric Keyboard
It is used to input parameters and consists of numbers (0 to 9), decimal point
(.), operators (+/-) and buttons (“Enter”, “Cancel” and “Del”). If a negative is
required, please input an operator “-” before the numbers. In addition, the
decimal point “.” can be used to switch units quickly and the operators “+/-”
can be used to switch between uppercase and lowercase (for the use method
of the numeric keyboard, refer to the introduction in Parameter Setting
Method).
12. Knob
During parameter setting, it is used to increase (clockwise) or decrease
(counterclockwise) the current highlighted number.
It is used to select file storage location or select the file to be recalled when
storing or recalling file.
It is used to switch the character in the soft keyboard when entering filename.
It is used to select built-in waveform when defining the shortcut waveform of
User.
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13. Direction Keys
When using the knob and direction keys to set parameters, the direction keys
are used to switch the digits of the number.
During filename input, they are used to move the cursor.
14. Waveforms
Sine----Sine
Generate a Sine waveform with frequency from 1μHz to 160MHz.
 When the function is enabled, the backlight of the button turns on.
 Enable to change Frequency/Period, Amplitude/High Level, Offset/Low
Level and Start Phase of the Sine waveform.
Square----Square
Generate a Square waveform with frequency from 1μHz to 50MHz and variable
duty cycle.
 When the function is enabled, the backlight of the button turns on.
 Enable to change Frequency/Period, Amplitude/High Level, Offset/Low
Level, Duty Cycle and Start Phase of the Square waveform.
Ramp----Ramp
Generate a Ramp waveform with frequency from 1μHz to 4MHz and variable
symmetry.
 When the function is enabled, the backlight of the button turns on.
 Enable to change Frequency/Period, Amplitude/High Level, Offset/Low
Level, Symmetry and Start Phase of the Ramp waveform.
Pulse----Pulse
Generate a Pulse waveform with frequency from 1μHz to 40MHz and variable
pulse width and edge time.
 When the function is enabled, the backlight of the button turns on.
 Enable to change Frequency/Period, Amplitude/High Level, Offset/Low
Level, Pulse Width/Duty Cycle, Leading Edge Time, Trailing Edge Time and
Delay of the Pulse waveform.
Noise----Noise
Generate a Gauss Noise with 120MHz bandwidth.
 When the function is enabled, the backlight of the button turns on.
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
Chapter 1 Quick Start
Enable to change Amplitude/High Level and Offset/Low Level of the
Noise.
Arb----Arbitrary Waveforms
Generate an arbitrary waveform with frequency from 1μHz to 40MHz.
 Provide point by point output mode.
 Generate 150 built-in waveforms: DC, Sinc, Exponential Rise, Exponential
Fall, ECG, Gauss, Haversine, Lorentz, Pulse, Dual-Tone etc.; output
arbitrary waveforms stored in USB storage device.
 Generate arbitrary waveforms (16 kpts) edited from the front panel or
through PC software and then downloaded to the instrument by the users.
 When the function is enabled, the backlight of the button turns on.
 Enable to change Frequency/Period, Amplitude/High Level, Offset/Low
Level and Start Phase of the arbitrary waveform.
Harmonic——Harmonic
Generate harmonics with frequency from 1μHz to 80MHz.
 Output up to 16th order of harmonic.
 Users can set the harmonic “Order”, “Type”, “Ampl” and “Phase”.
User----User-defined Waveform Key
Users can define the frequently used built-in waveform or stored waveform as
shortcut (Utility  UserKey). And then, in any operation interface, press
User to quickly open the desired waveform and set its parameters.
15. Modes
Mod----Modulation
Generate the modulated waveforms. Provide various analog modulation and
digital modulation modes and can generate AM, FM, PM, ASK, FSK, PSK, BPSK,
QPSK, 3FSK, 4FSK, OSK or PWM modulated signal.
 Support internal and external modulations.
Sweep----Sweep
Generate the frequency sweeping signal of Sine, Square, Ramp and Arbitrary
Waveforms (except DC).
 Support three sweep types: Linear, Log and Step.
 Support three trigger sources: Internal, External and Manual.
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
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Provide the “Mark” function.
When the function is enabled, the backlight of the button turns on.
Burst----Burst
Generate burst waveforms of Sine, Square, Ramp, Pulse and Arbitrary
waveform (except DC).
 Support three burst types: N Cycle, Infinite and Gated.
 Noise can also be used to generate Gated burst.
 Support three trigger sources: Internal, External and Manual.
 When the function is enabled, the backlight of the button turns on.
Note: when the instrument is working in remote mode, you can return it back
to local mode by pressing Burst.
16. Return
This key is used to return to the previous menu.
17. Shortcuts/Utility
Print: used to execute print function. Save the content shown on the screen
as image in USB storage device.
Edit: this key is the shortcut of “Arb  Edit Wform” and is used to enter the
ArbEdit interface quickly.
Preset: used to return the instrument state to default or user-defined states
(refer to the introduction in Restore Default).
Utility: used to set the system parameters. When this function is enabled, the
backlight of the button turns on.
Store: store or recall the instrument state or user-defined arbitrary data.
 Support normal file operations.
 Provide a built-in non-volatile memory (C Disk) and an external USB
storage device (D Disk).
 When the function is enabled, the backlight of the button turns on.
Help: to get context help information about any front-panel key or menu
softkey, press this key until it is illuminated and then press the desired key.
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18. LCD
800 × 480 TFT color LCD is used to display the current function menu and
parameters setting, system state as well as prompt messages.
CAUTION
Overvoltage protection of the output channel will take effect once any of
the following conditions is met.
 Amplitude setting in the generator is greater than 4Vpp; the input
voltage is greater than ±11.25V (±0.1V) and frequency is lower than
10kHz.
 Amplitude setting in the generator is lower than or equal to 4Vpp; the
input voltage is greater than ±4.5V (±0.1V) and frequency is lower
than 10kHz.
 The message “OverLoad protect, The output is off!” will appear on the
screen when overvoltage protection takes effect.
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Chapter 1 Quick Start
Rear Panel
The rear panel of DG4000 is as shown in the figure below.
8.
7.
6.
5.
4.
3.
2.
1.
Figure 1-6 DG4000 Rear Panel
1.
AC Power Input
This generator can accept AC power supply of 100-240V, 45-440Hz.
Power Fuse: 250V, T2 A.
2.
LAN
Connect the generator to the local area network for remote control through
this interface. This generator conforms to LXI-C instrument standards and can
quickly build test system with other devices to easily realize system
integration.
3.
Security Lock Hole
Users can use the security lock (buy it by themselves) to lock the instrument
at a fixed location.
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Chapter 1 Quick Start
4.
USB Device
PC can be connected through this interface to control the generator remotely
through PC software.
5.
10MHz In/Out
BNC female connector with 50Ω nominal impedance. The function of this
connector is determined by the type of clock used by the generator. DG4000
can use internal or external clock (refer to the introduction in Clock Source ).
 When internal clock source is used, the connector (used as 10MHz Out)
can output 10MHz clock signal generated by the internal crystal oscillator
of the generator.
 When external clock source is used, the connector (used as 10MHz In)
accepts a 10MHz external clock signal.
 This connector is usually used to synchronize multiple instruments (refer
to the introduction in Sync).
6.
CH1: Mod/FSK/Trig
BNC female connector with 50Ω nominal impedance. Its function is
determined by the current working mode of CH1.
 Mod:
If AM, FM, PM, PWM or OSK is enabled for CH1 and external modulation
source is used, this connector accepts an external modulation signal.
 FSK:
If ASK, FSK or PSK is enabled for CH1 and external modulation source is
used, this connector accepts an external modulation signal (users can set
the polarity of the signal).
 Trig In:

If CH1 is in sweep or burst mode and external trigger source is used, this
connector accepts an external trigger signal (users can set the polarity of
the signal).
Trig Out:
If CH1 is in sweep or burst mode and internal or manual trigger source is
used, this connector outputs a trigger signal with specified edge.
7.
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CH2: Mod/FSK/Trig
BNC female connector with 50Ω nominal impedance. Its function is
determined by the current working mode of CH2.
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Chapter 1 Quick Start
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


8.
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Mod:
If AM, FM, PM, PWM or OSK is enabled for CH2 and external modulation
source is used, this connector accepts an external modulation signal.
FSK:
If ASK, FSK or PSK is enabled for CH2 and external modulation source is
used, this connector accepts an external modulation signal (users can set
the polarity of the signal).
Trig In:
If CH2 is in sweep or burst mode and external trigger source is used, this
connector accepts an external trigger signal (users can set the polarity of
the signal).
Trig Out:
If CH2 is in sweep or burst mode and internal or manual trigger source is
used, this connector outputs a trigger signal with specified edge.
External Signal Input (Counter)
BNC female connector with 50Ω nominal impedance. It is used to accept an
external signal to be measured by the counter.
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Chapter 1 Quick Start
To Connect to Power
DG4000 accepts AC power supply: 100 to 240V, 45Hz to 440Hz. Please use the
power cable provided in the accessories to connect the instrument to AC power (as
shown in Figure 1-7). At this point, the generator is powered on and the power
button at the lower-left corner of the front panel is in breathing state.
Figure 1-7 To Connect to Power
CAUTION
If the power fuse needs to be changed, please return the instrument back
to our factory and the RIGOL authorized operator will change it for you.
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To Replace the Fuse
To replace the fuse, please use the specified fuse and follow the steps below.
1.
2.
3.
4.
5.
Turn off the instrument, cut off the power supply and remove the power cord.
Use a small straight screwdriver to prize out the fuse seat.
Take out the fuse seat.
Replace the specified fuse.
Install the fuse seat again.
Fuse Seat
Fuse
Figure 1-8 To Replace the Fuse
WARNING
To avoid electric shock, please make sure that the instrument has been
turned off and the power supply has been cut off before replacing the
fuse. Besides, please make sure that the fuse to be installed meets the
requirement.
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Chapter 1 Quick Start
User Interface
DG4000 user interface displays the parameters and waveforms of the two
channels at the same time. The figure below is the interface when both CH1 and
CH2 select Sine. Different contents will be displayed when different functions are
enabled.
4. Channel Configuration
3. Channel State
2. Status Bar
1. Current
Function
5. Frequency
6. Amplitude
7. Offset
8. Phase
9. Waveform
10. Counter
11. Menu
12. Menu Page Number
Figure 1-9 User Interface
1. Current Function
Display the name of the function currently selected. For example, “Sine”
indicates that “Sine” waveform function is currently selected and “ArbEdit”
indicates that “Arbitrary Waveform Edit” function is currently selected.
2. Status Bar
The following indicators would be displayed according to the current
configuration.
When the instrument is connected into LAN successfully, this indicator
will light.
When the generator works in remote mode, this indicator will light.
When the generator detects connected USB storage device, this
indicator will light.
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3. Channel Status
Display areas of CH1 and CH2. Indicate whether the channel is selected and
turned on (ON/OFF).The area of the channel currently selected is highlighted
and the on/off state of the channel currently turned on is “ON”.
Note:
When a channel is “Selected”, it does not mean that the channel is turned on.
When CH1 is selected, users can configure the parameters of CH1 and the
backlight of CH1 turns on. When CH1 is turned on, CH1 can output waveform
according to the current configuration and the backlight of Output1 turns on.
4. Channel Configurations
Display the current output configuration in each channel, including output
resistance, mode and type of modulating source or trigger source.
 Output Resistance
High Impedance: display “HighZ”
Load: display the resistance value, the default is “50Ω”
 Mode
Modulation: display “Mod”
Sweep: display “Sweep”
Burst: display “Burst”
 Modulating/Trigger Source Type
Internal modulating/trigger: display “Internal”
External modulating/trigger: display “External”
Manual Trigger: display “Manual”
5. Frequency
Display the current waveform frequency in each channel. Press the
corresponding softkey Freq and use the numeric keyboard or direction keys
and knob to modify this parameter. The parameter that can be modified
currently will be highlighted and the lightspot above the number indicates
current cursor location.
6. Amplitude
Display the current waveform amplitude in each channel. Press the
corresponding softkey Ampl and use the numeric keyboard or direction keys
and knob to modify this parameter. The parameter that can be modified
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Chapter 1 Quick Start
currently will be highlighted and the lightspot above the number indicates
current cursor location.
7. Offset
Display the current waveform DC offset in each channel. Press the
corresponding softkey Offset and use the numeric keyboard or direction keys
and knob to modify this parameter. The parameter that can be modified
currently will be highlighted and the lightspot above the number indicates
current cursor location.
8. Phase
Display the current waveform phase in each channel. Press the corresponding
softkey Start Phase and use the numeric keyboard or direction keys and knob
to modify this parameter. The parameter that can be modified currently will be
highlighted and the lightspot above the number indicates current cursor
location.
9. Waveform
Display the currently selected waveform shape in each channel.
10. Counter
Only available when the counter is turned on and can display the current
measurement state of the counter briefly or in detail.
 Brief: only display frequency, period and the number of measurements
performed.
 Detail: display the configurations of the counter, five measurement values
(Frequency, Period, Duty Cycle, Positive Pulse Width and Negative Pulse
Width) and the number of measurements performed.
11. Menu
Display the operation menu corresponding to the function currently selected.
For example, the “Sine” function menu is displayed in the above figure.
12. Menu Page Number
Display the total number of pages and the current page number of the menu,
such as “1 of 1” or “1 of 2”.
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Parameter Setting Method
Users can use the numeric keyboard or knob and direction keys to set parameters.
Numeric Keyboard
The numeric keyboard consists of:

Number Keys
The 0 to 9 number keys are used to
directly input the desired parameter
value.

Decimal Point
Press this key to insert a decimal point “.” at the current position of the cursor.

Operator Key
The operator key “+/-” is used to modify the operator of the parameter. Press
this key to set the parameter operator to “-”; press this key again to switch the
operator to “+”. Note that the operator key is used to switch between
uppercase and lowercase in filename edit.

Enter Key
Press this key to finish parameter input and add the default unit for the
parameter.

Cancel Key
(1) During parameter input, press this key to clear the input in the active
function area and exit parameter input.
(2) Turn the display in the active function area off.

Del Key
(1) During parameter input, press this key to delete the character at the left
of the cursor.
(2) During filename edit, press this key to delete the characters input.
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Direction keys and Knob
Functions of the direction keys:
1. During parameter input, use the direction keys to move the cursor to select
the digit to be edited.
2. During filename edit, use the direction keys to move the cursor.
Functions of the knob:
 When the parameter is in editable state, turn the knob
to increase (clockwise) or reduce (counterclockwise)
the parameter with specified step.



1-22
During filename edit, use the knob to select the characters in the soft
keyboard.
In Arb Select WformBuiltIn and Utility UserKey, use the knob to
select arbitrary waveform.
In store and recall, use the knob to select the storage location of the file or to
select the file to be recalled.
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To Use the Built-In Help
To get context help information about any front-panel key or menu softkey, press
Help to illuminate the key and then press the desired key to get corresponding
help.
Pressing Help twice will get the following common help.
1. View the last displayed message.
2. View error queue of the remote commands.
3. Get the help information of a key.
4. Generate a basic waveform.
5. Generate an arbitrary waveform.
6. Generate a modulated waveform.
7. Generate a frequency Sweep.
8. Generate a Burst waveform.
9. Storage management.
10. Synchronize multiple Generators.
11. Seamlessly connected with the RIGOL DS.
12. Get technical support from RIGOL.
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To Use the Security Lock
Use the security lock (option) to lock the generator at a fixed location. As shown in
the figure below, align the lock with the lock hole and plug it into the lock hole
vertically, turn the key clockwise to lock the instrument and then pull the key out.
Security Lock
Hole
Figure 1-10 Security Lock Hole
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To Use the Rack Mount Kit
This instrument can be installed into a standard 19 inches cabinet.
Figure 1-11 Rack Mount Kit
Kit Parts List
The part list of the rack mount kit (as shown in Figure 1-11) of DG4000 is as shown
in the table below. Wherein, the “No.” column corresponds to Figure 1-12 and
Figure 1-13.
Table 1-1 Kit Parts List
No.
Name
Qty
Part No.
1-1
1-2
1-3
1-4
1-5
1-6
2-1
Front Panel
Support Board
Left Plate
Right Plate
Pressure Feet
Built-in Fitting
M4 Screw
1
1
1
1
2
2
18
RM-DG4-01
RM-DG4-02
RM-DG4-03
RM-DG4-04
RM-DG4-05
RM-DG4-06
RM-SCREW-01
2-2
M6 Screw
4
RM-SCREW-02
2-3
M6 Screw
4
RM-SCREW-03
DG4000 Series User’s Guide
Description
M4 x 6 Phil-Slot Pan Head Machine
Screw Nail
M6 x 20 Phil-Slot Pan Head Machine
Screw Nail
M6 x 4 Square Machine Female
Screw Contain Lock Blade
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Figure 1-12 Parts of Rack Mount Kit
2-1
2-2
2-3
Figure 1-13 Screws and Nuts
Installation Tool
PH2 Phillips Screwdriver (recommended).
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Installation Space
The following requirements must be fulfilled by the machine cabinet in which the
instrument is mounted.
 The machine cabinet must be a standard 19-inch one.
 At least 4U (177.8 mm) space should be provided by the machine cabinet.
 The depth inside the machine cabinet should not be less than 180 mm.
The dimension of the instrument after being installed is as shown below.
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Installation Procedure
Only authorized operators can execute the installation operation. Improper
installation might result in damage of the instrument or incorrect installation of the
instrument on the rack.
1.
Install the right and left plates: align the detents of the right and left plates
with the openings on the support board and insert them into the support
board respectively, then fix them with four M4 screws.
2.
Install the front panel of the rack mount kit: fix the front panel onto the frame
installed in the previous step using six M4 screws.
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3.
Fix the bottom of the instrument: fix the instrument onto the support board
using two pressure feet and four M4 screws.
4.
Fix the top of the instrument: fix the top of the instrument using two built-in
fittings and four M4 screws.
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5.
Load into the machine cabinet: mount the rack with the instrument fixed to it
into a standard 19-inch machine cabinet with four M6 screws and four M6
square nuts.
6.
Post-installation notice: the rack occupies a height of 4U. The holes pointed
out by the arrows are installation holes. Note that they should be aligned with
during installation.
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Chapter 2 Basic Waveform Output
DG4000 can output basic waveforms (including Sine, Square, Ramp, Pulse and
Noise) from one of the channels separately or from the two channels at the same
time. At start-up, the instrument outputs a sine waveform with 1kHz frequency
and 5Vpp amplitude by default. This chapter introduces how to configure the
instrument to output various basic waveforms.
Subjects in this chapter:












To Select Output Channel
To Select Basic Waveform
To Set Frequency
To Set Amplitude
To Set DC Offset Voltage
To Set Start Phase
Align Phase
To Set Duty Cycle
To Set Symmetry
To Set Parameters for Pulse
To Enable Output
Basic Waveform Output Example
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Chapter 2 Basic Waveform Output
To Select Output Channel
Users can configure DG4000 to output basic waveform from a single channel or
from dual channels at the same time. Please select the desired channel before
configuring waveform parameters. At start-up, CH1 is selected by default.
Press CH1 or CH2 at the front panel and the corresponding area in the user
interface is illuminated. At this point, users can configure the waveform and
parameters of the channel selected.
Note: CH1 and CH2 can not be selected at the same time. Users can first select
CH1 and then select CH2 after configuring the waveform and parameters of CH1.
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To Select Basic Waveform
DG4000 can output 5 kinds of basic waveforms including Sine, Square, Ramp,
Pulse and Noise. At start-up, Sine is selected by default.
1.
Sine
Press Sine at the front panel to select sine waveform and the backlight of the
button turns on. At this point, “Sine” and the parameter setting menu of sine
waveform are displayed on the right of the user interface.
2.
Square
Press Square at the front panel to select square waveform and the backlight
of the button turns on. At this point, “Square” and the parameter setting menu
of square waveform are displayed on the right of the user interface.
3.
Ramp
Press Ramp at the front panel to select ramp waveform and the backlight of
the button turns on. At this point, “Ramp” and the parameter setting menu of
ramp waveform are displayed on the right of the user interface.
4.
Pulse
Press Pulse at the front panel to select pulse and the backlight of the button
turns on. At this point, “Pulse” and the parameter setting menu of pulse are
displayed on the right of the user interface.
5.
Noise
Press Noise at the front panel to select noise and the backlight of the button
turns on. At this point, “Noise” and the parameter setting menu of noise are
displayed on the right of the user interface.
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Chapter 2 Basic Waveform Output
To Set Frequency
Frequency is one of the most important parameters of basic waveforms. For
different instrument models and different waveforms, the setting ranges of
frequency are different. For detailed information, please refer to “Frequency
Characteristics” in Specifications. The default frequency is 1kHz.
The frequency displayed on the screen is the default value or the frequency
previously set. When the instrument function is changed, if this frequency is valid
under the new function, the instrument will still use this frequency; otherwise, the
instrument would display prompt message and set the frequency to the frequency
upper limit of the new function automatically.
Press Freq/Period to highlight “Freq”. At this point, use the numeric keyboard or
direction keys and knob to input the frequency value. Then, select the desired unit
from the pop-up menu.
 For the input method of frequency value, refer to the introduction in
Parameter Setting Method.
 The frequency units available are MHz, kHz, Hz, mHz and μHz.
 Press this softkey again to switch to period setting. At this point, “Period” is
highlighted.
 The period units available are sec, msec, μsec and nsec.
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To Set Amplitude
The amplitude range is limited by the “Resistance” and “Freq/Period” settings.
Please refer to “Output Characteristics” in Specifications. The default value is
5Vpp.
The amplitude displayed on the screen is the default value or the amplitude
previously set. When the instrument configuration (such as frequency) is changed,
if this amplitude is valid, the instrument will still use this amplitude; otherwise, the
instrument would display prompt message and set the amplitude to the amplitude
upper limit of the new configuration automatically. Users can also use “High Level”
or “Low Level” to set the amplitude.
Press Ampl/HiLevel to highlight “Ampl”, and then use the numeric keyboard or
direction keys and knob to input the amplitude value. Then, select the desired unit
from the pop-up menu.
 For the input method of amplitude value, refer to the introduction in
Parameter Setting Method.
 The amplitude units available are Vpp, mVpp, Vrms, mVrms and dBm (valid in
HighZ).
 Press this softkey again to switch to high level setting. At this point, “HiLevel”
is highlighted.
 The high level units available are V and mV.
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Chapter 2 Basic Waveform Output
Unit Switch
Vpp is the unit for signal peak-peak value and Vrms is the unit for signal
effective value. The default unit is Vpp. Users can quickly switch the current
amplitude unit from the front panel.
For different waveforms, the relations between Vpp and Vrms are different.
The relation of the two units is as shown in the figure below (take sine
waveform as an example).
Vamp
Vrms=0.707Vamp
Vpp=2Vamp
According to the figure above, the conversion relation between Vpp and
Vrms fulfills the following equation:
Vpp = 2 2Vrms
For example, to convert 2Vpp to the corresponding value in Vrms,
press · in the numeric keyboard and select Vrms menu. For sine
waveform, the converted value is 707.2mVrms.
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To Set DC Offset Voltage
The DC offset range is limited by the “Resistance” and “Ampl/HiLevel” settings.
Please refer to the “Output Characteristics” in Specifications. The default value is
0VDC.
The DC offset voltage displayed on the screen is the default value or the offset
previously set. When the instrument configuration (such as resistance) is changed,
if this offset is valid, the instrument will still use this offset; otherwise, the
instrument would display prompt message and set the offset to the offset upper
limit of the new configuration automatically.
Press Offset/LoLevel to highlight “Offset”, and then use the numeric keyboard or
direction keys and knob to input the offset value. Then, select the desired unit
from the pop-up menu.
 For the input method of offset value, refer to the introduction in Parameter
Setting Method.
 The DC offset voltage units available are VDC and mVDC.
 Press this softkey again to switch to low level setting. At this point, “LoLevel”
is highlighted.
 The low level units available are V and mV.
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Chapter 2 Basic Waveform Output
To Set Start Phase
The setting range of start phase is from 0° to 360° and the default is 0°.
The start phase displayed on the screen is the default value or the phase
previously set. When the instrument function is changed, the new function will still
use this phase.
Press Start Phase to highlight the softkey, and then use the numeric keyboard or
direction keys and knob to input the start phase value. Then, select the unit “°”
from the pop-up menu. For the input method of phase value, refer to the
introduction in Parameter Setting Method.
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Chapter 2 Basic Waveform Output
Align Phase
DG4000 series dual-channel generators enable to align the phases of the two
channels. Pressing down this softkey will re-configure the two channels, and
enable the generator to output with specified frequency and start phase.
For two signals whose frequencies are the same or in multiple, this operation will
align their phases. For example, assume a sine waveform (1kHz, 5Vpp, 0 °) is
output from CH1, while another (1kHz, 5Vpp, 180°) from CH2. Use an oscilloscope
to sample and display the two signals, and then toggle the channel output switch
of the generator, you will see that the waveforms shown on the oscilloscope do not
always have a phase deviation of 180°. At this point, press Align Phase on the
generator and the waveforms shown on the oscilloscope will have a phase
deviation of 180° without any adjustment of the start phase of the generator.
CH1
CH2
Figure 2-1 Before Aligning Phase
CH1
CH2
Figure 2-2 After Aligning Phase
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Chapter 2 Basic Waveform Output
Note: the Align Phase menu is grayed out and disabled when one of the two
channels is in modulation mode.
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To Set Duty Cycle
Duty Cycle is defined as the percentage that the high level takes up in the whole
period as shown in the figure below. This parameter is only available when square
waveform is selected.
Duty Cycle=t/T*100%
t
T
The duty cycle range is limited by the “Freq/Period” setting. Please refer to
“Signal Characteristics” in Specifications. The default value is 50%.
Press Duty Cycle to highlight the softkey, and then use the numeric keyboard or
direction keys and knob to input the duty cycle value. Then, select the unit “%”
from the pop-up menu. For the input method of duty cycle value, refer to the
introduction in Parameter Setting Method.
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Chapter 2 Basic Waveform Output
To Set Symmetry
Symmetry is defined as the percentage that the rising period takes up in the whole
period as shown in the figure below. This parameter is only available when ramp is
selected.
Symmetry=t/T*100%
t
T
The setting range of symmetry is from 0% to 100% and the default is 50%.
Press Symmetry to highlight the softkey, and then use the numeric keyboard or
direction keys and knob to input the symmetry value. Then, select the unit “%”
from the pop-up menu. For the input method of symmetry value, refer to the
introduction in Parameter Setting Method.
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Chapter 2 Basic Waveform Output
To Set Parameters for Pulse
To output a pulse, users need to set the “Pulse Width/Duty Cycle”, “Leading edge”,
“Trailing edge”, “Delay” and “Recover Delay” in addition to the basic parameters
(such as frequency, amplitude, DC offset voltage, start phase, high level, low level
and align phase) introduced above.
tRise
tFall
90%
50%
10%
Pulse Width脉宽
Pulse Period
Pulse Width/Duty Cycle
Pulse Width is defined as the time from the 50% threshold of a rising edge
amplitude to the 50% threshold of the next falling edge amplitude as shown in the
figure above.
Pulse Width range is limited by the “Minimum Pulse Width” and the “Pulse
Period” (for the ranges of “Minimum Pulse Width” and “Pulse Period”, please refer
to “Signal Characteristics” in Specifications). The default value is 500μs.
 Pulse Width ≥ Minimum Pulse Width
 Pulse Width ≤ Pulse Period - Minimum Pulse Width × 2
Pulse Duty Cycle is defined as the percentage that the Pulse Width takes up in the
whole period.
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Chapter 2 Basic Waveform Output
Pulse Width and Duty Cycle are correlative. Once a parameter is changed, the
other will be automatically changed. Pulse Duty Cycle is limited by the “Minimum
Pulse Width” and the “Pulse Period”.
 Pulse Duty Cycle ≥ 100 × Minimum Pulse Width ÷ Pulse Period
 Pulse Duty Cycle ≤ 100 × (1 - 2 × Minimum Pulse Width ÷ Pulse Period)
Press Width/Duty to highlight “Width”, and use the numeric keyboard or
direction keys and knob to input the desired value. Then, select the desired unit
from the pop-up menu.
 For the input method of the value, refer to the introduction in Parameter
Setting Method.
 Selectable Pulse Width units: sec, msec, μsec, nsec.
 Press this softkey again to switch to duty cycle setting (at this point, it is set to
20% automatically).
Leading/Trailing Edge Time
The Leading (rising) edge time is defined as the duration of the pulse amplitude
rising from 10% to 90% threshold, while the Trailing (falling) edge time is defined
as the duration of the pulse amplitude moving down from 90% to 10% threshold
as shown in the figure above.
The range of leading/trailing edge time is limited by the currently specified pulse
width limit as shown in the formula below. DG4000 will automatically adjust the
edge time to match the specified pulse width if the value currently set exceeds the
limit value.
Leading/Trailing Edge Time ≤ 0.625 × Pulse Width
Press Leading (or Trailing) to highlight the softkey. Use the numeric keyboard or
direction keys and knob to input the desired value and select the desired unit from
the pop-up menu.
 For the input method of the value, refer to the introduction in Parameter
Setting Method.
 Selectable Leading/Trailing Edge Time units: sec, msec, μsec, nsec.
 Leading edge time and trailing edge time are independent from each other
and users can set them separately.
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Delay
Delay is defined as the delayed time of the output of a channel relative to the
output of the other channel. The range of delay is from 0s to pulse period and the
default is 0s.
CH1 Output
CH2 Output
Delay
Press Delay to highlight the softkey. Use the numeric keyboard or direction keys
and knob to input the desired value and select the desired unit from the pop-up
menu.
 For the input method of the value, refer to the introduction in Parameter
Setting Method.
 Selectable Delay Time units: sec, msec, μsec, nsec.
Recover Delay
Press Pulse, then use
to open the 2/2 menu page and press Restore, the
generator will align the delay between the two channels. Assume that CH1 and CH2
output pulse waveforms with the same parameters. Use the oscilloscope to sample
the waveforms of the two channels and display them stably. Then, toggle the output
switch of the generator. The two waveforms displayed on the oscilloscope have a
certain delay. At this point, press Restore on the generator and the waveforms will
be displayed on the oscilloscope without any delay.
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Chapter 2 Basic Waveform Output
CH1
CH2
Figure 2-3 Before Restore
CH1
CH2
Figure 2-4 After Restore
Note that Restore is grayed out and disabled if any of the two channels is in
modulation mode.
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To Enable Output
After configuring the parameters of the waveform selected, waveform output
could be enabled.
Note: before enabling waveform output, you can also configure parameters (such
as Resistance and Polarity) related to the channel output through “CH1/CH2Set”
menu in Utility. For details, please refer to the introduction in Channel Setting.
Press Output1 or/and Output2 at the front panel and the backlight of the button
turns on. The instrument outputs the configured waveform from the [Output1]
or/and [Output2] connector at the front panel.
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Chapter 2 Basic Waveform Output
Basic Waveform Output Example
Configure the generator to output a pulse waveform with 1.5MHz frequency,
500mVpp amplitude, 5mVDC DC offset, 200ns pulse width, 75ns leading (rising)
edge time, 100ns trailing (falling) edge time and 5ns delay.
1.
Press CH1 at the front panel and the backlight turns on, indicating that CH1 is
selected.
2.
Press Pulse at the front panel and the backlight turns on, indicating that
Pulse waveform is selected.
3.
Press Freq/Period to highlight “Freq”. The lightspot above the number
indicates current cursor location (as shown in the figure below). Use the
numeric keyboard or direction keys and knob to input the frequency value
“1.5” and select the unit “MHz” from the pop-up menu.
Figure 2-5 To Set Waveform Parameters
4.
2-18
Press Ampl/HiLevel to highlight “Ampl”. The lightspot above the number
indicates current cursor location. Use the numeric keyboard or direction keys
and knob to input the amplitude value “500” and select the unit “mVpp” from
the pop-up menu.
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5.
Press Offset/LoLevel to highlight “Offset”. The lightspot above the number
indicates current cursor location. Use the numeric keyboard or direction keys
and knob to input the offset value “5” and select the unit “mVDC” from the
pop-up menu.
6.
Press Width/Duty to highlight “Width”. The lightspot above the number
indicates current cursor location. Use the numeric keyboard or direction keys
and knob to input “200” and select the unit “nsec” from the pop-up menu. At
this point, the pulse duty cycle changes accordingly.
7.
Press Leading to highlight it. The lightspot above the number indicates
current cursor location. Use the numeric keyboard or direction keys and knob
to input “75” and select the unit “nsec” from the pop-up menu. Press Trailing
to highlight it. The lightspot above the number indicates current cursor
location. Use the numeric keyboard or direction keys and knob to input “100”
and select the unit “nsec” from the pop-up menu.
8.
Press Delay to highlight it. The lightspot above the number indicates current
cursor location. Use the numeric keyboard or direction keys and knob to input
“5” and select the unit “nsec” from the pop-up menu.
9.
Press Output1 at the front panel to turn CH1 output on. At this point, CH1
outputs waveform with the specified parameters. Connect the output terminal
of CH1 to the oscilloscope and the waveform is as shown in the figure below.
Figure 2-6 To Output Pulse Waveform
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Chapter 3 Arbitrary Waveform Output
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Chapter 3 Arbitrary Waveform Output
DG4000 provides 150 kinds of built-in arbitrary waveforms stored in non-volatile
memory and allows users to store 10 user-defined arbitrary waveforms in
non-volatile memory and 1 user-defined arbitrary waveform in volatile memory.
Users can also store the user-defined arbitrary waveform in external memory
(such as USB storage device). User-defined waveforms can contain 1 (DC voltage)
to 16384 (16k) data points, namely 1pts to 16kpts.
DG4000 can output the built-in and user-defined arbitrary waveforms from a single
channel or from two channels at the same time. This chapter introduces how to
configure the generator to output arbitrary waveforms.
Subjects in this chapter:





To Enable Arbitrary Waveform
Point By Point Output Mode
To Select Arbitrary Waveform
To Create New Arbitrary Waveform
To Edit Arbitrary Waveform
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Chapter 3 Arbitrary Waveform Output
To Enable Arbitrary Waveform
Press Arb to enable arbitrary waveform function and open the operation menu of
arbitrary waveform.
1. Freq/Period: set the output “Frequency/Period” of the arbitrary waveform.
2. Ampl/HiLevel: set the output “Amplitude/High Level” of the arbitrary
waveform.
3. Offset/LoLevel: set the output “Offset/Low Level” of the arbitrary waveform.
4. Phase: set the “Start Phase” of the arbitrary waveform.
5. Align Phase: refer to Align Phase.
6. Point By Point: enable the point by point output mode of arbitrary waveform.
7. Select Wform: select arbitrary waveform stored in internal or external
memory.
8. Create New: users can define waveform with up to 16 kpts.
9. Edit Wform: edit the stored arbitrary waveform.
Refer to Basic Waveform Output to configure the parameters and output. This
chapter will focus on “Point By Point”, “Select Waveform”, “Create New” and “Edit
Waveform”.
Tip
Users can also press User at the front panel to quickly set arbitrary waveform
parameters including frequency/period, amplitude/high level, offset/low level,
start phase and align phase. At this point, the waveform output is the waveform
defined in Utility  UserKey (refer to introduction in User-defined
Waveform Key).
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Point By Point Output Mode
DG4000 supports point by point output of arbitrary waveform. Press Arb to open
the arbitrary waveform setting menu and press Point By Point to enable the
point by point output mode of arbitrary waveform.
In point by point output mode, the generator calculates the frequency
(30.517578125kHz) of the output signal automatically according to the wave table
length (16,384) and sample rate. The generator outputs waveform points one by
one at this fixed frequency. Point by point output mode can prevent the loss of
important waveform points.
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Chapter 3 Arbitrary Waveform Output
To Select Arbitrary Waveform
DG4000 allows users to select arbitrary waveforms stored in internal or external
memory for output. Press Arb, use
to open the 2/2 menu page, and then press
Select Wform to select “Builtin”, “Stored Wforms” or “Volatile Wform” for arbitrary
waveform output.
Built-In Waveform
Select from the 150 kinds of built-in arbitrary waveforms of DG4000 as shown in
the table below. Press BuiltIn and select a kind (“Common”, “Project”, “SectMod,
“Bioelect”, “Medical”, “Standard”, “Maths”, “Trigonome”, “Anti Trigonome” or
“Window”); the corresponding waveforms are displayed on the interface; use the
knob to select the desired waveform; use
to open the 2/2 menu page and
press Select to select the specified waveform.
Table 3-1 Built-in Waveform Table
Name
Explanation
Common
DC
DC signal
AbsSine
Absolute value of a Sine
AbsSineHalf
Absolute value of half a Sine
AmpALT
Gain oscillation curve
AttALT
Attenuation oscillation curve
GaussPulse
Gauss pulse
NegRamp
Negative ramp
NPulse
Negative pulse
PPulse
Positive pulse
SineTra
Sine-Tra waveform
SineVer
Sine-Ver waveform
StairDn
Stair-down waveform
StairUD
Stair-up and stair-down waveform
StairUp
Stair-up waveform
Trapezia
Trapezoid waveform
Project
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BandLimited
Bandwidth-limited signal
BlaseiWave
Time-velocity curve of explosive vibration
Butterworth
Butterworth filter
Chebyshev1
Chebyshev1 filter
Chebyshev2
Chebyshev2 filter
Combin
Combination function
CPulse
C pulse
CWPulse
CW pulse
DampedOsc
Time-displacement curve of damped oscillation
DualTone
Dual-tone signal
Gamma
Gamma signal
GateVibar
Gate self-oscillation signal
LFMPulse
Linear FM pulse
MCNoise
Mechanical construction noise
Discharge
Discharge curve of Ni-MH battery
Pahcur
Current waveform of DC brushless motor
Quake
Analog quake waveform
Radar
Analog radar waveform
Ripple
Ripple wave of battery
RoundHalf
RoundHalf wave
RoundsPM
RoundsPM waveform
StepResp
Step-response signal
SwingOsc
Kinetic energy- time curve of swing oscillation
TV
TV signal
Voice
Voice signal
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Sec-Mod
AM
Sectioned sine AM signal
FM
Sectioned sine FM signal
PFM
Sectioned pulse FM signal
PM
Sectioned sine PM signal
PWM
Sectioned PWM signal
Bioelect
Cardiac
Cardiac signal
EOG
Electro-Oculogram
EEG
Electroencephalogram
EMG
Electromyogram
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Pulseilogram
Pulsilogram
ResSpeed
Speed curve of the respiration
Medical
LFPulse
Waveform of the low frequency pulse electrotherapy
Tens1
Waveform 1 of the nerve stimulation electrotherapy
Tens2
Waveform 2 of the nerve stimulation electrotherapy
Tens3
Waveform 3 of the nerve stimulation electrotherapy
Standard
Ignition
Ignition waveform of the automotive motor
ISO16750-2 SP
Automotive starting profile with ringing
ISO16750-2 VR
Automotive supply voltage profile for resetting
ISO7637-2 TP1
Automotive transients due to disconnects
ISO7637-2 TP2A
Automotive transients due to inductance in wiring
ISO7637-2 TP2B
Automotive transients due ignition switching off
ISO7637-2 TP3A
Automotive transients due to switching
ISO7637-2 TP3B
Automotive transients due to switching
ISO7637-2 TP4
Automotive supply profile during starting
ISO7637-2 TP5A
Automotive transients due to battery disconnect
ISO7637-2 TP5B
Automotive transients due to battery disconnect
SCR
SCR firing profile
Surge
Surge signal
Math
Airy
Airy function
Besselj
BesselI function
Bessely
BesselII function
Cauchy
Cauchy distribution function
Cubic
Cubic function
Dirichlet
Dirichlet function
Erf
Error function
Erfc
Complementary error function
ErfcInv
Inverted complementary error function
ErfInv
Inverted error function
ExpFall
Exponential fall function
ExpRise
Exponential rise function
Gauss
Gauss distribution
HaverSine
HaverSine function
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Laguerre
4-times Laguerre polynomial
Laplace
Laplace distribution
Legend
5-times Legend polynomial
Log
Logarithm function with the base 10
LogNormal
Logarithmic Gaussian distribution
Lorentz
Lorentz function
Maxwell
Maxwell distribution
Rayleigh
Rayleigh distribution
Versiera
Versiera
Weibull
Weibull distribution
ARB_X2
Square function
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Trigonome
CosH
Hyperbolic cosine
CosInt
Integral cosine
Cot
Cotangent
CotHCon
Concave hyperbolic cotangent
CotHPro
Protuberant hyperbolic cotangent
CscCon
Concave cosecant
CscPro
Protuberant cosecant
CscHCon
Concave hyperbolic cosecant
CscHPro
Protuberant hyperbolic cosecant
RecipCon
Concave reciprocal
RecipPro
Protuberant reciprocal
SecCon
Concave secant
SecPro
Protuberant secant
SecH
Hyperbolic secant
Sinc
Sinc function
SinH
Hyperbolic sine
SinInt
Integral sine
Sqrt
Square root
Tan
Tangent
TanH
Hyperbolic tangent
Anti Trigonome
ACos
Arc cosine
ACosH
Arc hyperbolic cosine
ACotCon
Concave arc cotangent
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ACotPro
Protuberant arc cotangen
ACotHCon
Concave arc hyperbolic cotangent
ACotHPro
Protuberant arc hyperbolic cotangent
ACscCon
Concave arc cosecant
ACscPro
Protuberant arc cosecant
ACscHCon
Concave arc hyperbolic cosecant
ACscHPro
Protuberant arc hyperbolic cosecant
ASecCon
Concave arc secant
ASecPro
Protuberant arc secant
ASecH
Arc hyperbolic secant
ASin
Arc Sinc
ASinH
Arc hyperbolic sine
ATan
Arc tangent
ATanH
Arc hyperbolic tangent
Window
Bartlett
Bartlett window
BarthannWin
Modified Bartlett-Hann window
Blackman
Blackman window
BlackmanH
BlackmanH window
BohmanWin
Bohman window
Boxcar
Rectangle window
ChebWin
Chebyshev window
FlattopWin
Flat Top weighted window
Hamming
Hamming window
Hanning
Hanning window
Kaiser
Kaiser window
NuttallWin
Nuttall-defined minimum 4-term Blackman-Harris window
ParzenWin
Parzen window
TaylorWin
Taylor window
Triang
Triangle window (Fejer window)
TukeyWin
Tukey (tapered cosine) window
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Stored Waveform
Select arbitrary waveforms stored in internal non-volatile memory (C Disk) or
external memory (D Disk). Press this softkey to enter the Store/Recall Interface
and the Store key at the front panel is illuminated. Please select and read the
desired arbitrary waveform file. For more details, please refer to Store and
Recall. Waveform data in volatile memory will be changed after the file is read. To
return to arbitrary waveform setting interface, press Arb.
Volatile Waveform
Select arbitrary waveform currently stored in the volatile memory. Note that this
menu would be unavailable if there is no waveform data in volatile memory
currently. To fill up the volatile memory, you can create a waveform through
“Create New” or select a waveform from “Built-In” or “Stored Wforms”.
When “Volatile Wforms” is selected, users can edit the volatile waveform using the
Edit Wfrom menu. The new waveform data will overwrite the previous data in the
volatile memory. You can also save the new volatile waveform in non-volatile
memory.
Note: only when Output1 or/and Output2 is pressed and the backlight of the
button turns on, can the instrument output the specified arbitrary waveform from
the corresponding output terminal.
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Chapter 3 Arbitrary Waveform Output
To Create New Arbitrary Waveform
Press Arb, use
to open the 2/2 menu page, and then press Create New to
open the arbitrary waveform creation interface.
1. Cycle Period
Press this softkey and use the numeric keyboard or direction keys and knob to
set the cycle period of the new waveform. Cycle period is the boundary time of
the waveform and the range is from 25.0ns to 1Ms.
Note that the time of the last point that can be defined should be lower than
the cycle period.
2. High VLimit
Press this softkey and use the numeric keyboard or direction keys and knob to
set the level upper limit of the new waveform. The level upper limit is the
maximum voltage that can be set during waveform edit. The level upper limit
must be greater than the “Low VLimit” currently set and lower than or equal
to +5V (50Ω).
3. Low VLimit
Press this softkey and use the numeric keyboard or direction keys and knob to
set the level lower limit of the new waveform. The level lower limit is the
minimum voltage that can be set during waveform edit. The level lower limit
must be greater than or equal to -5V (50Ω) and lower than the “High VLimit”
currently set.
4. Init #Points
When creating a new waveform, the waveform editor will automatically create
a waveform with two points. By default, point 1 is located at 0 seconds and
point 2 at half of the specified cycle period. In addition, the levels of the two
points are equal to the specified “Low VLimit”. Press this softkey and use the
numeric keyboard or direction keys and knob to set the initial points of the new
waveform. DG4000 allows users to create arbitrary waveform with 1 to 16384
(16K) points. If in need, you can “Insert Point” or “Delete Point” later.
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5. Interp
Press this softkey to enable or disable the interpolation between the defined
waveform points.
 Off: The waveform editor will hold a constant voltage level between two
points and create a step waveform.
 Linear: The waveform editor will automatically connect the two defined
points with a straight line.
6. Edit Points
Define a waveform by specifying the time and voltage of each waveform point.
Press this softkey to enter the “Edit Points” interface.
 PointID: Set the ID of the point to be edited. The default is 1. You can
use the numeric keyboard or direction keys and knob to modify this
parameter.
 Time: Set the time of the current point in a period. This setting is limited
by the times of the previous and the next points. Note that the time of
point 1 is fixed at 0 s.
 Voltage: Set the voltage of the current point in mV or V. The range of the
voltage is limited by the “High VLimit” and “Low VLimit”. Note that the
waveform editor will automatically set the voltage of the last point to the
voltage of point 1 to create a continuous waveform.
 Insert Point: Insert a waveform point at the middle position of the
currently edited point and the next edited point.
 Delete Point: Delete the current point from the waveform and connect
the remaining points using the current interpolation method. Note that
point 1 cannot be deleted.
7. Edit Block
Define a waveform by editing the time and voltage of the start and end points
and automatically setting the points between them through linear
interpolation. Press Interp to select “Linear”, and then press this softkey to
enter the “Edit Block” interface. Note that if “Linear” is not selected in Interp,
this menu is grayed out and disabled.
 X1: Set the ID of the start point of the block (namely the time position of
the start point). Note that this value should be lower than the “Init Points”
and be equal to or lower than X2.
 Y1: Set the voltage of the start point in mV or V. The setting range of
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Chapter 3 Arbitrary Waveform Output
voltage is limited by “High VLimit” and “Low VLimit”.
X2: Set the ID of the end point of the block (namely the time position of
the end point). Note that this value should be lower than or equal to the
“Init Points” and be greater than or equal to X1.
Y2: Set the voltage of the end point in mV or V. The setting range of
voltage is limited by “High VLimit” and “Low VLimit”.
Execute: Edit the points between the start and end points according to
the current setting.
Delete: Delete the points that can be edited between X1 and X2 and
connect the start and end points using the current interpolation method.
Note that point 1 cannot be deleted.
8. Save
The currently created waveform is stored in the volatile memory by default.
When creating a new waveform, the previous waveform in volatile memory
will be overwritten. Users can store the waveform created in internal
non-volatile memory (C Disk) or external memory (D Disk). Press Save to
enter the file storage interface (refer to Store and Recall) to store the
waveform created.
Tips
Users can also use the PC software to edit arbitrary waveform and use the
following methods to store the waveform in internal memory or external
memory:
 Use SCPI command (For details, please refer to DG4000 Programming
Guide).
:TRACe:DAC VOLATILE,<binary_block_data>
 Save the waveform file stored in USB storage device (identified as “D Disk”
in the instrument) to internal memory (C Disk) through the file
management system.
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Example: Edit Points
The following example introduces how to use “Edit Points” to create an arbitrary
waveform fulfilling the following conditions.
Parameter
Value
Cycle Period
12μs
High VLimit
4V
Low VLImit
-2V
Interp
Linear
Point 1
0s, 0V
Point 2
4μs, 4V
Point 3
8μs, 0V
Point 4
10μs, -2V
Operation Procedures:
1. Press Arb and use
to open the 2/2 menu page; then press Create New
 Cycle Period, use the numeric keyboard to input “12” and select the unit
“μs” from the pop-up menu.
2. Press High VLimit, use the numeric keyboard to input “4” and select the unit
“V” from the pop-up menu.
3. Press Low VLimit, use the numeric keyboard to input “-2” and select the unit
“V” from the pop-up menu.
4. Press Init #Points, use the numeric keyboard to input “4” and press OK.
Note: at this point, a -2 V level line appears.
5. Press Interp to select “Linear”.
6. Press Edit Points to enter the “Edit Points” interface.
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Chapter 3 Arbitrary Waveform Output
Press PointID to define the first point (the time is 0 by default). Press
Voltage, use the numeric keyboard to input “0” and select the unit “V”
from the pop-up menu.
Press PointID again, use the numeric keyboard or knob to select point 2;
then press Time and Voltage to input 4μs and 4 V respectively.
Refer to step 2) to input point 3 and 4 in the table.
After finishing editing all the points, press OK to return to the previous
menu. At this point, press Save to enter the file storage interface (refer to
Store and Recall) to save the edited arbitrary waveform.
1)
2)
3)
4)
7. View the edited waveform.
V
2
4
2
0
-2
1
3
4
8
12
1
μs
4
Note: As can be seen from the above figure, the waveform editor will always
connect from the first point to the voltage level of the last point to create a
continuous waveform.
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Example: Edit Block
The following example introduces how to use “Edit Block” to create an arbitrary
waveform fulfilling the following conditions.
Parameter
Value
Cycle Period
12μs
High VLimit
4V
Low VLimit
-2V
Interp
Linear
X1Y1
2, 4V
X2Y2
4, -2V
Operation Procedures:
1. Press Arb and use
to open the 2/2 menu page; then press Create New
 Cycle Period, use the numeric keyboard to input “12” and select the unit
“μs” from the pop-up menu.
2. Press High VLimit, use the numeric keyboard to input “4” and select the unit
“V” from the pop-up menu.
3. Press Low VLimit, use the numeric keyboard to input “-2” and select the unit
“V” from the pop-up menu.
4. Press Init #Points, use the numeric keyboard to input “4” and press OK.
Note: at this point, a -2 V level line appears.
5. Press Interp to select “Linear”.
6. Press Edit Block to enter the “Edit Block” interface.
1) Press X1 and use the numeric keyboard to input “2”; then press Y1, use
the numeric keyboard to input “4” and select the unit “V” from the pop-up
menu. Use the same method to set X2 and Y2.
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Chapter 3 Arbitrary Waveform Output
2)
Press Excute to apply the setting defined in step 1). The waveform editor
will automatically use straight lines to connect the start point (point 2, the
level is 4 V) with the stop point (point 4, the level is -2 V) and
automatically generate point 1 and point 3 to create a continuous
waveform.
3)
After finishing editing all the points, press
to return to the previous
menu. At this point, press Save to enter the file storage interface (refer to
Store and Recall) to save the edited arbitrary waveform.
7. View the edited waveform.
V
2
4
2
3
0
-2
4
1
8
12
μs
4
Note: As can be seen from the above figure, after the start point (point 2) and
stop point (point 4) are inserted numerical values in the current interpolation
method, the waveform editor will automatically generate point 1 and point 3 to
create a continuous waveform.
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To Edit Arbitrary Waveform
Arbitrary waveforms stored in internal non-volatile memory or external memory
can be edited.
Press Arb and use
to open the 2/2 menu page, then press Edit Wform to
open waveform editing menu. Users can also press Edit at the front panel to
quickly open this interface.
Only “Select Wform” which will be introduced in this section, is new in this menu
compared to Create New. For other menu functions and operations, please refer
to To Create New Arbitrary Waveform. Press Edit Wform  Select Wform
to select the waveform to be edited.
1. To Edit Built-In waveforms
Select a waveform from the built-in waveforms to edit. You can store the
edited waveform without overwriting the original built-in waveform.
2. To Edit Stored Waveforms
Select a waveform from internal non-volatile memory (C Disk) or external
memory (D Disk) to edit. You can overwrite the old waveform or save the new
waveform as a new file.
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Chapter 4 Harmonic Output
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Chapter 4 Harmonic Output
DG4000 can be used as a harmonic generator to output harmonic with specified
order, amplitude and phase. It is usually used in the test of harmonic detector
device or harmonic filter device. This chapter introduces how to configure the
generator to output harmonics.
Subjects in this chapter:






Overview
To Set Fundamental Waveform Parameters
To Set Harmonic Order
To Select Harmonic Type
To Set Harmonic Amplitude
To Set Harmonic Phase
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Chapter 4 Harmonic Output
Overview
According to Fourier transform, time domain waveform is the superposition of a
series of sine waveforms as shown in the equation below:
f (t ) = A1 sin( 2πf1t + ϕ1 ) + A2 sin( 2πf 2 t + ϕ 2 ) + A3 sin( 2πf 3 t + ϕ 3 ) + ......
Generally, component with f 1 frequency is called fundamental waveform, f 1 is
fundamental waveform frequency, A1 is fundamental waveform amplitude and
ϕ1 is fundamental waveform phase. The frequencies of other components (called
harmonics) are all integral multiples of the fundamental waveform frequency.
Components whose frequencies are odd multiples of the fundamental waveform
frequency are odd harmonics and components whose frequencies are even
multiples of the fundamental waveform frequency are even harmonics.
DG4000 can output up to 16th order of harmonic. After selecting CH1 or CH2,
press Harmonic at the front panel to enter the harmonic setting menu. Users can
set the parameters of fundamental waveform, set the type of harmonic, specify
the highest order of harmonic and set the amplitude and phase of each order of
harmonic.
After finishing harmonic parameter setting, press Output1 or/and Output2 and
the backlight of the button turns on, the instrument outputs the specified
harmonic from the corresponding output terminal.
To Set Fundamental Waveform Parameters
DG4000 allows users to set various fundamental waveform parameters such as
frequency, period, amplitude, DC offset voltage, high level, low level and start phase.
It also supports align phase operation. Please refer to introductions in Basic
Waveform Output to set fundamental waveform parameters.
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To Set Harmonic Order
The highest order of harmonic output from DG4000 can not be greater than this
setting value.
After entering the harmonic setting menu, press Order (at this point, “Order” on
the screen is highlighted) and use the numeric keyboard or the direction keys and
knob to input the harmonic order. The range is limited by the maximum output
frequency of the instrument as well as the fundamental waveform frequency.
 Range: integers within 2 to maximum output frequency of the
instrument÷fundamental waveform frequency.
 The maximum is 16.
To Select Harmonic Type
DG4000 can output even harmonic, odd harmonic, all orders of harmonic or
user-defined orders of harmonic. After entering the harmonic setting menu, press
Type to select the desired harmonic type.
1.
Even
Press this key and the instrument would output fundamental waveform and
even harmonics.
2.
Odd
Press this key and the instrument would output fundamental waveform and
odd harmonics.
3.
All
Press this key and the instrument would output fundamental waveform and all
the harmonics in order.
4.
User
Press this key and the instrument would output the user-defined orders of
harmonics. The highest order is 16.
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Chapter 4 Harmonic Output
16 bits binary data is used to represent the output status of the 16 orders of
harmonics respectively, wherein, 1 represents enabling the output of the
corresponding harmonic and 0 represents disabling the output of the
corresponding harmonic. Users only need to use the numeric keyboard to
modify the value of each data bit (note: the leftmost bit representing
fundamental waveform is always X and can not be modified). For example, set
the 16 bits data to X001 0000 0000 0001, thus 4th and 16th orders of
harmonics are output.
Note: the actual harmonics output is determined by the “Order” currently
specified.
To Set Harmonic Amplitude
After entering the harmonic setting menu, press Ampl to set the amplitude of
each order of harmonic.
1.
Sn: press this softkey to select the sequence number of the harmonic to be
set.
2.
Ampl: press this softkey to set the amplitude of the harmonic selected. Use
the numeric keyboard or direction keys and knob to input the amplitude value
and then select the desired unit from the pop-up menu.
 For the input method of amplitude value, refer to the introduction in
Parameter Setting Method.
 The amplitude units available are Vpp, mVpp, Vrms, mVrms and dBm (not
available in HighZ).
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To Set Harmonic Phase
After entering the harmonic setting menu, press Phase to set the phase of each
order of harmonic.
1.
Sn: press this softkey to select the sequence number of the harmonic to be
set.
2.
Phase: press this softkey to set the phase of the harmonic selected. Use the
numeric keyboard or the direction keys and knob to input the phase value and
then select the unit “°” from the pop-up menu. For the input method of phase
value, refer to the introduction in Parameter Setting Method.
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Chapter 5 Modulated Waveform Output
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Chapter 5 Modulated Waveform Output
DG4000 supports AM, FM, PM, ASK, FSK, 3FSK, 4FSK, PSK, BPSK, QPSK, PWM and
OSK modulations. DG4000 can output modulated waveform from a single channel
or from two channels at the same time. The modulated waveform consists of
carrier waveform and modulating waveform. The carrier waveform can be Sine,
Square, Ramp, Arbitrary waveform (except DC) or Pulse (only in PWM). The
modulating waveform can be from internal or external modulation source.
Subjects in this chapter:












AM
FM
PM
ASK
FSK
PSK
BPSK
QPSK
3FSK
4FSK
OSK
PWM
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Chapter 5 Modulated Waveform Output
AM
Modulated waveform usually consists of carrier waveform and modulating
waveform. For amplitude modulation (AM), the amplitude of the carrier waveform
varies with the instantaneous voltage of the modulating waveform.
To Select AM Modulation
Press Mod  Type  AM to enable AM function.
 When Mod is enabled, Sweep or Burst will be disabled automatically (if
enabled currently).
 After AM is enabled, the instrument will generate AM waveform with the
currently specified carrier and modulating waveforms.
To Select Carrier Waveform Shape
AM carrier waveform could be Sine, Square, Ramp or Arbitrary waveform (except
DC). The default is Sine.
 Press the front panel key Sine, Square, Ramp or Arb Select Wform (or
User, the pre-defined waveform can not be DC) to select a desired carrier
waveform shape.
 Pulse, Noise and DC could not be used as carrier waveform.
To Set Carrier Frequency
Different carrier waveforms have different frequency ranges as shown in the table
below. For all the carrier waveforms, the default value is 1kHz.
Carrier Waveform
Frequency Range
Sine
1μHz to 160MHz
Square
1μHz to 50MHz
Ramp
1μHz to 4MHz
Arbitrary Waveform
1μHz to 40MHz
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After the carrier waveform is selected, you can press Freq/Period to highlight
“Freq”, and then use the numeric keyboard or direction keys and knob to input the
desired frequency value.
To Select Modulating Waveform Source
DG4000 can accept modulating waveform from internal or external modulation
source. Press Mod  Source to select “Int” or “Ext” modulation source.
1. Internal Source
When internal modulation source is selected, press Shape to select Sine,
Square, Triangle, UpRamp, DnRamp, Noise or Arb as modulating waveform.
The default is Sine.
 Square: 50% duty cycle.
 Triangle: 50% symmetry.
 UpRamp: 100% symmetry.
 DnRamp: 0% symmetry.
Arb: when arbitrary waveform is selected as modulating waveform, the
generator would limit the waveform length to 2kpts automatically.
Note: Noise can be used as modulating waveform but can not be used as
carrier waveform.

2. External Source
When external modulation source is selected, the Shape menu will be grayed
out and disabled. The generator accepts the external modulating signal from
the [Mod/FSK/Trig] connector at the rear panel. The AM modulating
amplitude is controlled by the ±2.5 V signal level of the connector.
[Mod/FSK/Trig]
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To Set Modulating Waveform Frequency
When internal modulation source is selected, press AM_Freq to set the
modulating waveform frequency.
 Input the desired frequency value using the numeric keyboard or direction
keys and knob.
 The modulating waveform frequency ranges from 2mHz to 50kHz, and the
default value is 100Hz.
Notice that, this menu will be grayed out and disabled when external modulation
source is selected.
To Set Modulation Depth
Modulation depth expressed as a percentage indicates the amplitude variation
degree. The AM modulation depth ranges from 0% to 120%. Press AM Depth to
set AM modulation depth.
 In 0% modulation, the output amplitude is half of the specified value.
 In 100% modulation, the output amplitude is equal to the specified value.
 In >100% modulation, the output amplitude of the instrument would not
exceed 10Vpp (50Ω load).
When “Ext” modulation source is selected, the output amplitude of the instrument
is also controlled by the ±2.5V signal level at the [Mod/FSK/Trig] connector at
the rear panel. For example, set the modulation depth to 100%, the output
amplitude is the maximum when the modulating signal is +2.5V and the minimum
when the modulating signal is -2.5V.
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FM
Modulated waveform consists of carrier waveform and modulating waveform. For
frequency modulation (FM), the frequency of the carrier waveform varies with the
instantaneous voltage of the modulating waveform.
To Select FM Modulation
Press Mod  Type  FM to enable FM function.
 When Mod is enabled, Sweep or Burst will be disabled automatically (if
currently enabled).
 After FM is enabled, the instrument will generate FM waveform with the
currently specified carrier and modulating waveforms.
To Select Carrier Waveform Shape
FM carrier waveform could be Sine, Square, Ramp or Arbitrary waveform (except
DC). The default is Sine.
 Press the front panel key Sine, Square, Ramp or Arb  Select Wform
(or User, the pre-defined waveform can not be DC) to select a desired carrier
waveform shape.
 Pulse, Noise and DC could not be used as carrier waveform.
To Set Carrier Frequency
Different carrier waveforms have different frequency ranges as shown in the table
below. For all the carrier waveforms, the default value is 1kHz.
Carrier Waveform
Frequency Range
Sine
1μHz to 160MHz
Square
1μHz to 50MHz
Ramp
1μHz to 4MHz
Arbitrary Waveform
1μHz to 40MHz
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Chapter 5 Modulated Waveform Output
After the carrier waveform is selected, you can press Freq/Period to highlight
“Freq”, and then use the numeric keyboard or direction keys and knob to input the
desired frequency value.
To Select Modulating Waveform Source
DG4000 can accept modulating waveform from internal or external modulation
source. Press Mod  Source to select “Int” or “Ext” modulation source.
1. Internal Source
When internal modulation source is selected, press Shape to select Sine,
Square, Triangle, UpRamp, DnRamp, Noise or Arb as modulating waveform.
The default is Sine.
 Square: 50% duty cycle.
 Triangle: 50% symmetry.
 UpRamp: 100% symmetry.
 DnRamp: 0% symmetry.
Arb: when arbitrary waveform is selected as modulating waveform, the
generator would limit the waveform length to 2kpts automatically.
Note: Noise can be used as modulating waveform but can not be used as
carrier waveform.

2. External Source
When external modulation source is selected, the Shape menu will be grayed
out and disabled. The generator accepts the external modulating signal from
the [Mod/FSK/Trig] connector at the rear panel. The frequency deviation is
controlled by the ±2.5 V signal level of the connector.
[Mod/FSK/Trig]
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To Set Modulating Waveform Frequency
When internal modulation source is selected, press FM_Freq to set the
modulating waveform frequency.
 Input the desired frequency value using the numeric keyboard or direction
keys and knob.
 The modulating waveform frequency ranges from 2mHz to 50kHz, and the
default value is 100Hz.
Notice that, this menu will be grayed out and disabled when external modulation
source is selected.
To Set Frequency Deviation
Frequency deviation is the deviation of the modulating waveform frequency
relative to the carrier frequency. Press Deviation to set the FM frequency
deviation.
 Frequency deviation must be lower than or equal to the carrier frequency.
 The sum of frequency deviation and carrier frequency must be lower than or
equal to the sum of the current carrier frequency upper limit and 1kHz.
When “Ext” modulation source is selected, frequency deviation is controlled by the
±2.5V signal level at the [Mod/FSK/Trig] connector at the rear panel. Positive
signal level corresponds to frequency increase and negative signal level
corresponds to frequency decrease. The lower the level, the less offset is
generated. For example, if the frequency deviation is set to 1kHz, +2.5V signal
level corresponds to a 1kHz increase of frequency and -2.5V signal level
corresponds to a 1kHz decrease of frequency.
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Chapter 5 Modulated Waveform Output
PM
Modulated waveform consists of carrier waveform and modulating waveform. For
phase modulation (PM), the phase of the carrier waveform varies with the
instantaneous voltage of the modulating waveform.
To Select PM Modulation
Press Mod  Type  PM to enable PM function.
 When Mod is enabled, Sweep or Burst will be automatically disabled (if
currently enabled).
 After PM is enabled, the instrument will generate PM waveform with the
currently specified carrier and modulating waveforms.
To Select Carrier Waveform Shape
PM carrier waveform could be Sine, Square, Ramp or Arbitrary waveform (except
DC). The default is Sine.
 Press the front panel key Sine, Square, Ramp or Arb  Select Wform
(or User, the pre-defined waveform can not be DC) to select the desired
carrier waveform shape.
 Pulse, Noise and DC could not be used as carrier waveform.
To Set Carrier Frequency
Different carrier waveforms have different frequency ranges as shown in the table
below. For all the carrier waveforms, the default value is 1kHz.
Carrier Waveform
Frequency Range
Sine
1μHz to 160MHz
Square
1μHz to 50MHz
Ramp
1μHz to 4MHz
Arbitrary Waveform
1μHz to40 MHz
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After the carrier waveform is selected, you can press Freq/Period to highlight
“Freq”, and then use the numeric keyboard or direction keys and knob to input the
desired frequency value.
To Select Modulating Waveform Source
DG4000 can accept modulating waveform from internal or external modulation
source. Press Mod  Source to select “Int” or “Ext” modulation source.
1.
Internal Source
When internal modulation source is selected, press Shape to select Sine,
Square, Triangle, UpRamp, DnRamp, Noise or Arb as modulating waveform.
The default is Sine.
 Square: 50% duty cycle.
 Triangle: 50% symmetry.
 UpRamp: 100% symmetry.
 DnRamp: 0% symmetry.
Arb: when arbitrary waveform is selected as modulating waveform, the
generator would limit the waveform length to 2kpts automatically.
Note: Noise can be used as modulating waveform but can not be used as
carrier waveform.

2.
External Source
When external modulation source is selected, the Shape menu will be grayed
out and disabled. The generator accepts the external modulating signal from
the [Mod/FSK/Trig] (as shown in the figure below) connector at the rear
panel. The phase deviation is controlled by the ±2.5 V signal level of the
connector.
[Mod/FSK/Trig]
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Chapter 5 Modulated Waveform Output
To Set Modulating Waveform Frequency
When internal modulation source is selected, press PM_Freq to set the
modulating waveform frequency.
 Input the desired frequency value using the numeric keyboard or direction
keys and knob.
 The modulating waveform frequency ranges from 2mHz to 50kHz, and the
default value is 100Hz.
Notice that, this menu will be grayed out and disabled when external modulation
source is selected.
To Set Phase Deviation
Phase deviation is the deviation of the modulating waveform phase relative to the
carrier waveform phase. Press Deviation to set the PM phase deviation.
 Use the numeric keyboard or direction keys and knob to input the desired
phase value.
 The range of phase deviation is from 0º to 360º.
When “Ext” modulation source is selected, the phase deviation is controlled by the
±2.5V signal level at the [Mod/FSK/Trig] connector at the rear panel. For
example, if the phase deviation is set to 180º, +2.5V signal level corresponds to a
180º phase variation. The lower the external signal level, the less deviation would
be generated.
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ASK
When using ASK (Amplitude Shift Keying) modulation, you can configure the
generator to “shift” its output amplitude between two preset amplitude values
(“carrier amplitude” and “modulating amplitude”). The “shift” rate (ASK Rate) is
determined by the internal signal level or signal level at the [Mod/FSK/Trig]
connector at the rear panel.
To Select ASK Modulation
Press Mod  Type  ASK to enable ASK function.
 When Mod is enabled, Sweep or Burst will be disabled automatically (if
enabled currently).
 After ASK is enabled, the instrument will generate ASK waveform with the
currently specified carrier and modulating waveforms.
To Select Carrier Waveform Shape
ASK carrier waveform could be Sine, Square, Ramp or arbitrary waveform (except
DC). The default is Sine.
 Press the front panel key Sine, Square, Ramp or Arb  Select Wform
(or User, the pre-defined waveform can not be DC) to select the desired
carrier waveform shape.
 Pulse, Noise and DC could not be used as carrier waveform.
To Set Carrier Amplitude
After selecting carrier waveform shape, press Ampl/HiLevel to highlight “Ampl”,
and then use the numeric keyboard or direction keys and knob to input the desired
amplitude. The available amplitude range is limited by Resistance and
Freq/Period. Please refer to the “Output Characteristics” described in
Specifications.
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To Select Modulating Waveform Source
Press Mod  Source to select “Int” or “Ext” modulating waveform source.
1. Internal Source
When internal source is selected, the modulating waveform is set as a Square
with 50% duty cycle, and the rate at which the output amplitude “shifts”
between “carrier amplitude” and “modulating amplitude” is determined by
“ASK Rate”.
2. External Source
When external source is selected, the generator accepts the external
modulating signal from the [Mod/FSK/Trig] connector at the rear panel.
[Mod/FSK/Trig]
Note: the [Mod/FSK/Trig] connector is different when controlling ASK
and AM/FM/PM modulations externally. In ASK modulation, the
[Mod/FSK/Trig] connector has adjustable edge polarity.
To Set ASK Rate
When internal source is selected, press ASK Rate to set the rate at which the
output amplitude shifts between “carrier amplitude” and “modulating amplitude”.
 Use the numeric keyboard or direction keys and knob to input the desired
frequency value.
 The frequency range is from 2mHz to 1MHz and the default is 100Hz.
Note: when “Ext” modulation source is selected, this menu would be grayed out
and disabled.
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To Set Modulating Amplitude
Press ModAmp to set the modulating amplitude.
 Use the numeric keyboard or direction keys and knob to input the desired
amplitude value.
 The range of amplitude (HighZ) is from 0 to 10V and the default is 2V.
To Set Modulating Polarity
Press Polarity to select the “Pos” or “Neg” polarity of the modulating waveform to
control the output amplitude.
In internal modulation, set the polarity to “Pos” and the generator would output
the greater of the carrier amplitude and modulating amplitude when the
modulating waveform is logic high and output the lower when the modulating
waveform is logic low. The situation is the opposite when the polarity is set to
“Neg”.
In external modulation, set the polarity to “Pos” and the generator would output
the greater of the carrier amplitude and modulating amplitude when logic high
level is input and output the lower when the logic low level is input. The situation is
the opposite when the polarity is set to “Neg”.
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Chapter 5 Modulated Waveform Output
FSK
When FSK (Frequency Shift Keying) modulation is selected, you can configure the
generator to “shift” its output frequency between two preset frequencies (“carrier
frequency” and “hop frequency”). The “shift” frequency (FSK Rate) is determined
by the internal signal level or signal level at the [Mod/FSK/Trig] connector at
the rear panel.
To Select FSK Modulation
Press Mod  Type  FSK to enable FSK function.
 When Mod is enabled, Sweep or Burst will be automatically disabled (if
enabled currently).
 After FSK is enabled, the instrument will generate FSK waveform with the
currently specified carrier and modulating waveforms.
To Select Carrier Waveform Shape
FSK carrier waveform could be Sine, Square, Ramp or arbitrary waveform (except
DC), and the default is Sine.
 Press the front panel key Sine, Square, Ramp or Arb  Select Wform
(or User, the pre-defined waveform can not be DC) to select desired carrier
waveform shape.
 Pulse, Noise and DC could not be used as carrier waveform.
To Set Carrier Frequency
Different carrier waveforms have different frequency ranges as shown in the table
below. For all the carrier waveforms, the default value is 1kHz.
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Carrier Waveform
Frequency Range
Sine
1μHz to 160MHz
Square
1μHz to 50MHz
Ramp
1μHz to 4MHz
Arbitrary Waveform
1μHz to 40MHz
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After the carrier waveform is selected, you can press Freq/Period to highlight
“Freq”, and then use the numeric keyboard or direction keys and knob to input the
desired frequency value.
To Select Modulating Waveform Source
Press Mod  Source to select “Int” or “Ext” modulating waveform source.
1. Internal Source
When internal source is selected, the modulating waveform is set as a Square
with 50% duty cycle, and the frequency at which the output frequency shifts
between “carrier frequency” and “hop frequency” is determined by “FSK Rate”.
2. External Source
When external source is selected, the generator accepts the external
modulating signal from the [Mod/FSK/Trig] connector at the rear panel.
[Mod/FSK/Trig]
Note: the [Mod/FSK/Trig] connector is different when controlling FSK
and AM/FM/PM modulations externally. In FSK modulation, the
[Mod/FSK/Trig] connector has adjustable edge polarity.
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Chapter 5 Modulated Waveform Output
To Set FSK Rate
When internal source is selected, press FSK Rate to set the frequency at which
the output frequency shifts between “carrier frequency” and “hop frequency”.
 Use the numeric keyboard or direction keys and knob to input the desired
frequency value.
 The frequency range is from 2mHz to 1MHz and the default is 100Hz.
Note: when “Ext” modulation source is selected, this menu is grayed out and
disabled.
To Set Hop Frequency
Alternating frequency (“hop” frequency) is the modulating frequency. The range of
hop frequency depends on the carrier waveform currently selected. Press
HopFreq to highlight it and input the desired frequency value using the numeric
keyboard or direction keys and knob.
 Sine: 1μHz to 160MHz
 Square: 1μHz to 50MHz
 Ramp: 1μHz to 4MHz
 Arb: 1μHz to 40MHz
To Set Modulating Polarity
Press Polarity to select the “Pos” or “Neg” polarity of the modulating waveform to
control the output frequency.
In internal modulation, set the polarity to “Pos” and the generator would output
the carrier frequency when the modulating waveform is logic low and output the
hop frequency when the modulating waveform is logic high. The situation is the
opposite when the polarity is set to “Neg”.
In external modulation, set the polarity to “Pos” and the generator would output
the carrier frequency when logic low level is input and output the modulating
frequency when logic high level is input. The situation is the opposite when the
polarity is set to “Neg”.
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PSK
When PSK (Phase Shift Keying) modulation is selected, you can configure the
generator to “shift” its output phase between two preset phase values (“carrier
phase” and “modulating phase”). The “shift” frequency (PSK Rate) is determined
by the internal signal level or signal level at the [Mod/FSK/Trig] connector at
the rear panel.
To Select PSK Modulation
Press Mod  Type  PSK to enable PSK function.
 When Mod is enabled, Sweep or Burst will be automatically disabled (if
enabled currently).
 After PSK is enabled, the instrument will generate PSK waveform with the
currently specified carrier and modulating waveforms.
To Select Carrier Waveform Shape
PSK carrier waveform could be Sine, Square, Ramp or arbitrary waveform (except
DC), and the default is Sine.
 Press the front panel key Sine, Square, Ramp or Arb  Select Wform
(or User, the pre-defined waveform can not be DC) to select the desired
carrier waveform shape.
 Pulse, Noise and DC could not be used as carrier waveform.
To Set Carrier Phase
After carrier waveform shape is selected, press Start Phase to highlight it and use
the numeric keyboard or direction keys and knob to input the desired phase. The
available phase ranges from 0º to 360º and the default value is 0º.
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Chapter 5 Modulated Waveform Output
To Select Modulating Waveform Source
Press Mod  Source to select “Int” or “Ext” modulating waveform source.
1. Internal Source
When internal source is selected, the modulating waveform is set as a Square
with 50% duty cycle, and the frequency at which the output phase shifts
between “carrier phase” and “modulating phase” is determined by “PSK Rate”.
2. External Source
When external source is selected, the generator accepts the external
modulating signal from the [Mod/FSK/Trig] connector (as shown in the
figure below) at the rear panel.
[Mod/FSK/Trig]
Note: the [Mod/FSK/Trig] connector is different when controlling PSK
and AM/FM/PM modulations externally. In PSK modulation, the
[Mod/FSK/Trig] connector has adjustable edge polarity.
To Set PSK Rate
When internal source is selected, press PSK Rate to set the frequency at which
the output phase shifts between “carrier phase” and “modulating phase”.
 Use the numeric keyboard or direction keys and knob to input the desired
frequency value.
 The frequency range is from 2mHz to 1MHz and the default is 100Hz.
Note: when “Ext” is selected, this menu is grayed out and disabled.
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To Set PSK Phase
PSK phase is the modulating phase. Press Phase to set the modulating phase.
 Use the numeric keyboard or direction keys and knob to input the desired
phase value.
 The phase range is from 0º to 360º and the default is 180º.
To Set Modulating Polarity
Press Polarity to select the “Pos” or “Neg” polarity of the modulating waveform to
control the output phase.
In internal modulation, set the polarity to “Pos” and the generator would output
the carrier phase when the modulating waveform is logic low and output the
modulating phase when the modulating waveform is logic high. The situation is the
opposite when the polarity is set to “Neg”.
In external modulation, set the polarity to “Pos” and the generator would output
the carrier phase when logic low level is input and output the modulating phase
when logic high level is input. The situation is the opposite when the polarity is set
to “Neg”.
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Chapter 5 Modulated Waveform Output
BPSK
When BPSK (Binary Phase Shift Keying) is selected, you can configure the
generator to “shift” its output phase between two preset phases (“carrier phase”
and “modulating phase”). The “shift” frequency (BPSK rate) is determined by the
internal signal level of the instrument.
To Select BPSK Modulation
Press Mod  Type  BPSK to enable BPSK function.
 When Mod is enabled, Sweep or Burst will be automatically disabled (if
enabled currently).
 After BPSK is enabled, the instrument will generate BPSK waveform with the
currently specified carrier and modulating waveforms.
To Select Carrier Waveform Shape
BPSK carrier waveform could be Sine, Square, Ramp or arbitrary waveform
(except DC), and the default is Sine.
 Press the front panel key Sine, Square, Ramp or Arb  Select Wform
(or User, the pre-defined waveform can not be DC) to select desired carrier
waveform shape.
 Pulse, Noise and DC could not be used as carrier waveform.
To Set Carrier Phase
After carrier waveform shape is selected, press Start Phase to highlight it and use
the numeric keyboard or the direction keys and knob to input the desired phase.
The phase range is from 0º to 360º and the default is 0º.
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To Select Modulating Waveform Source
BPSK uses internal modulation source. Press Data Source to select PN15, PN21,
01 or 10and the default is PN15.
Explanation:
PN sequence (Pseudo-noise Sequence), a kind of periodic bianary sequence,
has the statistical characteristics similar to a random noise but can be
produced and processed repeatedly. The most commonly used PN sequence
is m sequence generated by shift registers with linear feedback and its period
is relevant to the linear feedback logic and the initial state of each register.
The period of the m sequence generated by n-level shift register is 2n-1. As
In the figure below is a 4-level linear feedback shift register of which the
feedback logic is a3⊕a2. For PN15 and PN21, 15 and 21are levels of the
registers.
+
Output
a3
a2
a1
a0
To Set BPSK Rate
BPSK uses internal modulation source. Press Rate to set the frequency at which
the output phase shifts between “carrier phase” and “modulating phase”.
 Use the numeric keyboard or direction keys and knob to input the desired
frequency value.
 The frequency range is from 2mHz to 1MHz and the default is 100Hz.
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Chapter 5 Modulated Waveform Output
To Set BPSK Phase
BPSK phase is the modulating phase. Press Phase to set the modulating phase.
 Use the numeric keyboard or direction keys and knob to input the desired
phase value.
 The phase range is from 0º to 360º and the default is 180º.
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QPSK
When QPSK (Quadrature Phase Shift Keying) is selected, you can configure the
generator to “shift” its output phase among four preset phases (“carrier phase”
and three “modulating phases”). The “shift” frequency (QPSK rate) is determined
by the internal signal level of the instrument.
To Select QPSK Modulation
Press Mod  Type  QPSK to enable QPSK function.
 When Mod is enabled, Sweep or Burst will be automatically disabled (if
enabled currently).
 After QPSK is enabled, the instrument will generate QPSK waveform with the
currently specified carrier and modulating waveforms.
To Select Carrier Waveform Shape
QPSK carrier waveform could be Sine, Square, Ramp or arbitrary waveform
(except DC), and the default is Sine.
 Press the front panel key Sine, Square, Ramp or Arb  Select Wform
(or User, the pre-defined waveform can not be DC) to select desired carrier
waveform shape.
 Pulse (basic waveform), Noise and DC could not be used as carrier waveform.
To Set Carrier Phase
After carrier waveform shape is selected, press Start Phase to highlight it and use
the numeric keyboard or direction keys and knob to input the desired phase. The
phase range is from 0º to 360º and the default is 0º.
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Chapter 5 Modulated Waveform Output
To Select Modulating Waveform Source
QPSK uses internal modulation source. Press Data Source to select PN15 or PN21
and the default is PN15.
To Set QPSK Rate
QPSK uses internal modulation source. Press Rate to set the frequency at which
the output phase shifts between “carrier phase” and “modulating phase”.
 Use the numeric keyboard or direction keys and knob to input the desired
frequency value.
 The frequency range is from 2mHz to 1MHz and the default is 100Hz.
To Set QPSK Phases
QPSK phases are the modulating phases. Press Phase1, Phase2 and Phase3 to
set the modulating phases respectively.
 Use the numeric keyboard or direction keys and knob to input the desired
phase value.
 The phase range is from 0º to 360º and the default values of Phase1,
Phase2 and Phase3 are 450º, 135º and 225º respectively.
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3FSK
When 3FSK (3 Frequency Shift Keying) modulation is selected, you can configure
the generator to “shift” its output frequency among three preset frequencies
(“carrier frequency” and two “modulating frequencies”). The “shift” frequency
(3FSK rate) is determined by the internal signal level of the instrument.
To Select 3FSK Modulation
Press Mod  Type  3FSK to enable 3FSK function.
 When Mod is enabled, Sweep or Burst will be automatically disabled (if
enabled currently).
 After 3FSK is enabled, the instrument will generate 3FSK waveform with the
currently specified carrier and modulating waveforms.
To Select Carrier Waveform Shape
3FSK carrier waveform could be Sine, Square, Ramp or arbitrary waveform (except
DC), and the default is Sine.
 Press the front panel key Sine, Square, Ramp or Arb  Select Wform
(or User, the pre-defined waveform can not be DC) to select desired carrier
waveform shape.
 Pulse (basic waveform), Noise and DC could not be used as carrier waveform.
To Set Carrier Frequency
Different carrier waveforms have different frequency ranges as shown in the table
below. For all the carrier waveforms, the default value is 1kHz.
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Chapter 5 Modulated Waveform Output
Carrier Waveform
Frequency Range
Sine
1μHz to 160MHz
Square
1μHz to 50MHz
Ramp
1μHz to 4MHz
Arbitrary Waveform
1μHz to 40MHz
After the carrier waveform is selected, you can press Freq/Period to highlight
“Freq”, and then use the numeric keyboard or direction keys and knob to input the
desired frequency value.
Modulation Source
3FSK uses internal modulation source and the modulating waveform is Sine.
To Set 3FSK Rate
3FSK uses internal modulation source. Press KeyFreq to set the frequency at
which the output frequency shifts between “carrier frequency” and the two “hop
frequencies”.
 Use the numeric keyboard or direction keys and knob to input the desired
frequency value.
 The frequency range is from 2mHz to 1MHz and the default is 100Hz.
To Set Hop Frequencies
Alternating frequencies (“hop” frequencies) are the modulating frequencies. The
ranges of hop frequencies depend on the carrier waveform currently selected.
Press HopFreq1 and HopFreq2 to highlight them and input the desire frequency
values using the numeric keyboard or direction keys and knob respectively.
 Sine: 1μHz to 160MHz
 Square: 1μHz to 50MHz
 Ramp: 1μHz to 4MHz
 Arb: 1μHz to 40MHz
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4FSK
When 4FSK (4 Frequency Shift Keying) modulation is selected, you can configure
the generator to “shift” its output frequency among four preset frequencies
(“carrier frequency” and three “hop frequencies”). The “shift” frequency (4FSK
rate) is determined by the internal signal level of the instrument.
To Select 4FSK Modulation
Press Mod  Type  4FSK to enable 4FSK function.
 When Mod is enabled, Sweep or Burst will be automatically disabled (if
enabled currently).
 After 4FSK is enabled, the instrument will generate 4FSK waveform with the
currently specified carrier and modulating waveforms.
To Select Carrier Waveform Shape
4FSK carrier waveform could be Sine, Square, Ramp or arbitrary waveform (except
DC), and the default is Sine.
 Press the front panel key Sine, Square, Ramp or Arb  Select Wform
(or User, the pre-defined waveform can not be DC) to select the desired
carrier waveform shape.
 Pulse (basic waveform), Noise and DC could not be used as carrier waveform.
To Set Carrier Frequency
Different carrier waveforms have different frequency ranges as shown in the table
below. For all the carrier waveforms, the default value is 1kHz.
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Chapter 5 Modulated Waveform Output
Carrier Waveform
Frequency Range
Sine
1μHz to 160MHz
Square
1μHz to 50MHz
Ramp
1μHz to 4MHz
Arbitrary Waveform
1μHz to 40MHz
After the carrier waveform is selected, you can press Freq/Period to highlight
“Freq”, and then use the numeric keyboard or direction keys and knob to input the
desired frequency value.
Modulation Source
4FSK uses internal modulation source and the modulating waveform is Sine.
To Set 4FSK Rate
4FSK uses internal modulation source. Press KeyFreq to set the frequency at
which the output frequency shifts between “carrier frequency” and three “hop
frequencies”.
 Use the numeric keyboard or direction keys and knob to input the desired
frequency value.
 The frequency range is from 2mHz to 1MHz and the default is 100Hz.
To Set Hop Frequencies
Alternating frequencies (“hop” frequencies) are the modulating frequencies. The
ranges of hop frequencies depend on the carrier waveform currently selected.
Press HopFreq1, HopFreq2 and HopFreq3 to highlight them and input the
desire frequency values using the numeric keyboard or direction keys and knob
respectively.
 Sine: 1μHz to 160MHz
 Square: 1μHz to 50MHz
 Ramp: 1μHz to 4MHz
 Arb: 1μHz to 40MHz
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OSK
When OSK (Oscillation Shift Keying) modulation is selected, users can configure
the generator to output a sine signal with intermittent oscillation as shown in the
figure below (the carrier waveform is 100Hz and the OSK rate is 10kHz). The
start-oscillation and stop-oscillation of the internal crystal oscillator are controlled
by the internal signal level or signal level at the [Mod/FSK/Trig] connector at
the rear panel. When the internal crystal oscillator starts to oscillate, the
instrument starts to output the carrier waveform and when the internal crystal
stops oscillating, the output stops.
Figure 5-1 OSK Modulated Waveform
To Select OSK Modulation
Press Mod  Type  OSK to enable OSK function.
 When Sine is currently selected, OSK in the Type is not available.
 When Mod is enabled, Sweep or Burst will be automatically disabled (if
enabled currently).
 After OSK is enabled, the instrument will generate OSK waveform with the
currently specified carrier and modulating waveforms.
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Chapter 5 Modulated Waveform Output
To Select Carrier Waveform Shape
OSK carrier waveform can only be sine waveform. Press Sine at the front panel.
To Set Carrier Frequency
After carrier waveform shape is selected, press Freq/Period to highlight “Freq”
and use the numeric keyboard or direction keys and knob to input the desired
frequency. The range is from 1μHz to 160MHz.
To Select Modulating Waveform Source
Press Mod  Source to select “Int” or “Ext” modulation source.
1. Internal Source
When internal source is selected, the modulating waveform is set as a Square
with 50% duty cycle. At this point, the intermittence time and oscillate time of
the output signal is determined by the OSK “Rate”.
2. External Source
When external source is selected, the generator accepts external modulating
signal from the [Mod/FSK/Trig] connector at the rear panel.
[Mod/FSK/Trig]
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To Set OSK Rate
When internal source is selected, press Rate to set the OSK rate.
 Use the numeric keyboard or direction keys and knob to input the desired
frequency value.
 The frequency range is from 2mHz to 1MHz and the default is 1kHz.
To Set Oscillate Period
Oscillate period is the oscillation period of internal crystal oscillator. Press
OscTime to highlight it and use the numeric keyboard or direction keys and knob
to input the desired period. The range is from 8ns to 499.750μs.
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PWM
A PWM (Pulse Width Modulation) modulated waveform consists of carrier
waveform and modulating waveform. The pulse width of the carrier waveform
varies with the instantaneous voltage of the modulating waveform.
To Select PWM Modulation
PWM can only be used to modulate pulse. To select PWM modulation, press Pulse
at the front panel first and then press Mod to enable PWM function.
 If the Pulse function key has not been selected, PWM in Type menu is
unavailable.
 When Mod is enabled but the modulation type is not PWM, pressing Pulse
will select PWM automatically.
 When Mod is enabled, Sweep or Burst will be automatically disabled (if
enabled currently).
 After PWM is enabled, the instrument will generate PWM waveform with the
currently specified carrier and modulating waveforms.
To Select Carrier Waveform Shape
As mentioned before, PWM can only be used to modulate Pulse. To select Pulse
waveform, press Pulse at the front panel.
To Set Pulse Width/Duty Cycle
After the carrier waveform shape is selected, press Width/Duty to highlight
“Width” or “Duty” and input the desired value using the numeric keyboard or
direction keys and knob.
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To Select Modulating Waveform Source
Press Mod  Source to select “Int” or “Ext” modulating waveform source.
1. Internal Source
When internal modulation source is selected, press Shape to select Sine,
Square, Triangle, UpRamp, DnRamp, Noise or Arb as modulating waveform.
The default is Sine.
 Square: 50% duty cycle.
 Triangle: 50% symmetry.
 UpRamp: 100% symmetry.
 DnRamp: 0% symmetry.
Arb: when arbitrary waveform is selected as modulating waveform, the
generator would limit the waveform length to 2kpts automatically.
Note: Noise can be used as modulating waveform but can not be used as carrier
waveform.

2. External Source
When external modulation source is selected, the Shape menu will be grayed
out and disabled. The generator accepts the external modulating signal from
the [Mod/FSK/Trig] connector at the rear panel. The “WidthDev” (or
“DutyDev”) is controlled by the ±2.5 V signal level of the connector.
To Set Modulating Waveform Frequency
When internal modulation source is selected, press PWM Freq to set the
frequency of the modulating waveform.
 Use the numeric keyboard or direction keys and knob to input the desired
frequency value.
 The frequency range is from 2mHz to 1MHz and the default is 100Hz.
Note: when “Ext” modulation source is selected, this menu is grayed out and
disabled.
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To Set Pulse Width/Duty Cycle Deviation
Press WidthDeV (or “DutyDev”) and input the desired value using the numeric
keyboard or direction keys and knob.
 Width deviation represents the variation (in seconds) of the modulated
waveform pulse width relative to the original pulse width.
Pulse width deviation range: 0s to 500ks.
The width deviation can not exceed the current pulse width.
The width deviation is limited by the minimum pulse width and current edge
time setting.
 Duty cycle deviation represents the variation (in %) of the modulated
waveform duty cycle relative to the original pulse duty cycle.
Duty cycle deviation range: 0% to 50%。
The duty cycle deviation can not exceed the current pulse duty cycle.
The duty cycle is limited by the minimum duty cycle and current edge time
setting.
When “Ext” modulation source is selected, width deviation (or duty deviation) is
controlled by the ±2.5V signal level at the [Mod/FSK/Trig] connector at the rear
panel. For example, if the width deviation is set to 10s, the +2.5V signal level
corresponds to a 10s variation in pulse width.
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Chapter 6 Sweep
DG4000 can output sweep from a single channel or from dual channels at the
same time. In sweep mode, the generator varies its output from the start
frequency to end frequency within the specified sweep time. DG4000 supports
linear, log and step sweep modes, allows users to set start hold, end hold and
return time, supports internal, external or manual trigger source and can generate
sweep output for Sine, Square, Ramp and arbitrary waveform (except DC).
Subjects in this chapter:











To Enable Frequency Sweep
Start Frequency and End Frequency
Center Frequency and Frequency Span
Sweep Type
Sweep Time
Return Time
Mark Frequency
Start Hold
End Hold
Sweep Trigger Source
Trigger Output Edge
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Chapter 6 Sweep
To Enable Frequency Sweep
Press Sweep at the front panel to enable the sweep function (the backlight of the
key goes on), and Mod or Burst function will be automatically disabled (if
currently enabled). The instrument will generate the sweep waveform from the
corresponding channel (if currently turned on) according to the current
configuration. You can also reset the sweep function menu. Please refer to the
introduction in the following text for details.
Start Frequency and End Frequency
Start frequency and end frequency are the upper and lower limits of the frequency
for frequency sweep. The generator sweeps from the start frequency to the end
frequency and then returns back to the start frequency.
 Start Frequency < End Frequency: the generator sweeps from low frequency
to high frequency.
 Start Frequency > End Frequency: the generator sweeps from high frequency
to low frequency.
 Start Frequency = End Frequency: the generator outputs with a fixed
frequency.
When frequency sweep is enabled, press Start/Center to highlight “Start”.
Notice that, “End” in End/Span will also be highlighted. Use the numeric
keyboard or direction keys and knob to input the desired frequencies. By default,
the start frequency is 100Hz and the end frequency is 1kHz. Different sweep
waveform corresponds to different start frequency and end frequency range.
 Sine: 1μHz to 160MHz
 Square: 1μHz to 50MHz
 Ramp: 1μHz to 4MHz
 Arb: 1μHz to 40MHz
The generator will renewedly sweep from the specified “start frequency” after
start frequency or end frequency is changed.
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Chapter 6 Sweep
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Center Frequency and Frequency Span
You can also set the frequency boundaries of frequency sweep through center
frequency and frequency span.
 Center Frequency = (|Start Frequency + End Frequency|) / 2
 Frequency Span = End Frequency – Start Frequency
When frequency sweep is enabled, press Start/Center to highlight “Center”.
Notice that, “Span” in End/Span will also be highlighted. Use the numeric
keyboard or direction keys and knob to enter the desired frequency values. By
default, the center frequency is 550Hz and the frequency span is 900Hz.
Different sweep waveform corresponds to different center frequency and
frequency span range and center frequency and frequency span are interrelative.
Define the minimum frequency of the waveform currently selected as Fmin , the
maximum frequency as Fmax and Fm = ( Fmin + Fmax ) / 2 .

The range of center frequency is from Fmin to Fmax and the parameters for

different waveforms are as follows:
Sine: 1μHz to 160MHz
Square: 1μHz to 50MHz
Ramp: 1μHz to 4MHz
Arb: 1μHz to 40MHz
Frequency span range is influenced by the center frequency:
Center frequency < Fm : frequency span range is ±2× (center frequency
– Fmin );
Center frequency ≥ Fm : frequency span range is ±2× ( Fmax – center
frequency).
Take sine as an example. Fmin is 1μHz, Fmax is 160MHz and Fm is about
80MHz.
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Chapter 6 Sweep
If the center frequency is 550Hz, the frequency span range is ±2× (550Hz–1μHz)
= ±1.099999998kHz; if the center frequency is 155MHz, the frequency span range
is ±2× (160MHz–155MHz) = ±10MHz.
The generator will renewedly sweep from the specified “Start Frequency” after
“Center Frequency” or “Frequency Span” is changed.
Tip
In large-scale sweep, the amplitude characteristic of the output signal might
change.
Sweep Type
DG4000 provides three sweep types, including Linear, Log and Step, and the
default is Linear.
Linear Sweep
The output frequency of the instrument varies linearly in the way of “several Hertz
per second”. The variation is controlled by “Start Frequency”, “End Frequency” and
“Sweep Time”.
When Sweep is enabled, press SwpType to select “Linear”. A line is displayed on
the waveform on the screen, indicating that the output frequency changes in linear
mode.
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Chapter 6 Sweep
Figure 6-1 Linear Sweep
Log Sweep
The output frequency of the instrument varies in a logarithmic fashion, that is, the
output frequency changes in the way of “octave per second” or “decade per
second”. The change is controlled by “Start Frequency”, “End Frequency” and
“Sweep Time”.
When Log Sweep is enabled, users could set the following parameters:
Start Frequency ( Fstart ), End Frequency ( Fstop ) and Sweep Time ( Tsweep )
The function prototype of Log Sweep is Fcurrent = P T . P and T could be expressed
by the above-mentioned parameters:
P = 10
DG4000 Series User’s Guide
lg( Fstop / Fstart ) / Tsweep
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Chapter 6 Sweep
T = t + lg( Fstart ) / lg( P )
Wherein, t is the time from the start of the sweep and its range is from 0 to Tsweep .
Fcurrent is the instantaneous frequency of the current output.
When Sweep is enabled, press SwpType to select “Log”. An exponential function
curve is displayed on the waveform on the screen, indicating that the output
frequency changes in a logarithmic mode.
Figure 6-2 Log Sweep
Step Sweep
The output frequency of the instrument “steps” from “Start Frequency” to “End
Frequency”. The duration of the output signal on each frequency point is
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Chapter 6 Sweep
determined by “Sweep Time” and “Step Number”.
When Sweep is enabled, press SwpType to select “Step”. A step waveform is
displayed on the waveform on the screen, indicating that the output frequency
changes in “steps”. At this point, press
to open the 2/2 menu page. Press
StepNum and use the numeric keyboard or knob to input the step number. The
default is 2 and the range is from 2 to 2048. Note: in “Linear” and “Log” sweep
modes, StepNum is grayed out and disabled.
Figure 6-3 Step Sweep
Sweep Time
When Sweep is enabled, press SwpTime and use the numeric keyboard or knob
to change the sweep time. The default value is 1s and the available range is from
1ms to 300s. The generator will renewedly sweep and output from the specified
“Start Frequency” once the sweep time is changed.
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Chapter 6 Sweep
Return Time
The generator will always sweep from “Start Frequency” to “End Frequency” and
stay within “End Hold” time. Return time describes the time needed for the output
to return to “Start frequency” from “End frequency” after “End hold”.
When Sweep is enabled, press ReturnTime and use the numeric keyboard or
knob to change the return time. The default value is 0s and the available range is
from 0s to 300s.
The generator will renewedly sweep from the specified “Start Frequency” once the
return time is changed.
Mark Frequency
The sync signal on the [Sync] connector corresponding to the channel at the front
panel always changes from low-level to high-level at the start of each sweep, and
changes from high-level to low-level at the middle of the sweep period when
“Mark” function is disabled or at the specified mark frequency point when “Mark”
function is enabled.
When Sweep is enabled, press MarkFreq and select “On”, as shown in the figure
below, use the numeric keyboard or knob to modify the mark frequency. The
default value is 550Hz and the available range is limited by “Start Frequency” and
“End Frequency”.
The generator will renewedly sweep and output from the specified “Start
Frequency” once the Mark Frequency is changed.
Note: in step sweep mode, MarkFreq is grayed out and disabled.
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Chapter 6 Sweep
Figure 6-4 Mark Frequency
Start Hold
Start Hold is the duration that the output signal outputs with the “Start Frequency”
after the sweep starts. After the Start Hold, the generator will output with varying
frequency in the current sweep type.
When Sweep is enabled, use
to open the 2/2 menu page, then press Start
Hold and use the numeric keyboard or knob to change the Start Hold. The default
value is 0s and the available range is from 0s to 300s.
The generator will renewedly sweep and output from the specified “Start
Frequency” once the Start Hold is changed.
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Chapter 6 Sweep
End Hold
End Hold is the duration that the output signal outputs with the “End Frequency”
after the generator has swept from the “Start Frequency” to the “End Frequency”.
When Sweep is enabled, use
to open the 2/2 menu page, then press End
Hold and use the numeric keyboard or knob to change the End Hold. The default
value is 0s and the available range is from 0s to 300s.
The generator will renewedly sweep and output from the specified “start
frequency” once the End Hold is changed.
Sweep Trigger Source
The sweep trigger source could be internal, external or manual. The generator will
generate a sweep output when a trigger signal is received and then wait for the
next trigger.
When Sweep is enabled, use
to open the 2/2 menu page and press Source
to select “Int”, “Ext” or “Manual”. The default is “Int”.
1.
Internal Trigger
The generator outputs continuous sweep waveform. The trigger period is
determined by the specified sweep time, return time, start hold and end hold
times.
2.
External Trigger
The generator accepts the trigger signal input from the [Mod/FSK/Trig]
connector at the rear panel. A sweep will be generated once the connector
gets a TTL pulse with specified polarity. To set the TTL pulse polarity, press
SlopeIn to select “Leading” or “Trailing”. The default is “Leading”.
Note that in “Int” and “Manual” trigger modes, the corresponding menu is
TrigOut. The [Mod/FSK/Trig] connector at the rear panel is used as the
output terminal of trigger signal.
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Chapter 6 Sweep
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[Mod/FSK/Trig]
3.
Manual Trigger
A sweep will be generated from the corresponding channel once you press
Trigger1 or Trigger2 at the front panel.
Trigger Output Edge
In Sweep mode, when “Int” or “Manual” trigger source is selected, the generator
will output a TTL compatible signal with specified edge from the [Mod/FSK/Trig]
connector at the rear panel.
[Mod/FSK/Trig]



Internal Trigger: the generator outputs a Square waveform with 50% duty
cycle from the [Mod/FSK/Trig] connector at the beginning of the Sweep.
The trigger period depends on the specified sweep time, return time, start
hold and end hold.
Manual Trigger: the generator outputs a Pulse waveform with greater than
1μs pulse width at the beginning of the Sweep from the [Mod/FSK/Trig]
connector.
External Trigger: the [Mod/FSK/Trig] connector is used as the input
terminal of external trigger signal and has no trigger output.
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Chapter 6 Sweep
When “Int” or “Manual” trigger is selected, press TrigOut to set the edge type of
the trigger output signal. The default is “Off”.
 Off: disable the trigger output signal.
 Leading: output the trigger signal at the rising edge.
 Trailing: output the trigger signal at the falling edge.
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Chapter 7 Burst
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Chapter 7 Burst
DG4000 can output waveform with specified number of cycles (called Burst) from
a single channel or from dual channels at the same time. DG4000 supports control
of burst output by internal, manual or external trigger source; supports three kinds
of burst types including N cycle, infinite and gated. The generator can use Sine,
Square, Ramp, Pulse, Noise (only for gated burst) or arbitrary waveform (except
DC) to generate burst.
Subjects in this chapter:








To Enable Burst Mode
Burst Type
Burst Phase
Burst Period
Gated Polarity
Burst Delay
Burst Trigger Source
Trigger Output Edge
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Chapter 7 Burst
To Enable Burst Mode
Press Burst at the front panel to enable Burst function (the backlight of the key
goes on), and Mod or Sweep function will be automatically disabled (if currently
enabled). The generator will output burst waveform from the corresponding
channel (if currently turned on) according to the current configuration. You can
also reset the burst function menu. Please refer to the introduction in the following
text for details.
Burst Type
DG4000 could output three types of bursts, including N Cycle, Infinite and
Gated. The default is N Cycle.
Table 7-1 Relations among burst type, trigger source and carrier waveform
Burst Type
Trigger Source
Carrier Waveform
N Cycle
Int/Ext/Manual
Sine/Square/Ramp/Pulse/Arbitrary waveform
(except DC)
Infinite
Ext/Manual
Sine/Square/Ramp/Pulse/Arbitrary waveform
(except DC)
Gated
Ext
Sine/Square/Ramp/Pulse/Noise/Arbitrary
waveform (except DC)
N Cycle Burst
In N Cycle mode, the generator will output waveform with specified number of
cycles after receiving trigger signal. Waveform functions that support N cycle burst
include Sine, Square, Ramp, Pulse and arbitrary waveform (except DC).
For N cycle burst, “Int”, “Ext” or “Manual” trigger source could be used. Besides,
users can set the “Start Phase”, “Burst Period” (internal trigger), “Delay”,
“SlopeIn” (external trigger) and “TrigOut” (internal and manual triggers).
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Chapter 7 Burst
When Burst is enabled, press Type to select “N_Cyc”. The parameter “Cycles” on
the screen is highlighted and could be edited. At this point, use the numeric
keyboard or knob to change the Cycles, the default is 1 and the available range is
from 1 to 1 000 000 (external or manual trigger) or 1 to 500 000 (internal trigger).
Figure 7-1 N Cycle Burst
Infinite Burst
In Infinite mode, the cycle number of the waveform is set as an infinite value. The
generator outputs a continuous waveform after receiving trigger signal. Waveform
functions that support infinite burst include Sine, Square, Ramp, Pulse and
arbitrary waveform (except DC).
For infinite burst, “Ext” or “Manual” trigger source could be used. Besides, users
can set the “Start Phase”, “Delay”, “SlopeIn” (external trigger) and “TrigOut”
(manual trigger).
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Chapter 7 Burst
When Burst is enabled, press Type to select “Infinite” and the instrument will set
the trigger source to “Manual” automatically. An infinite cycle pulse sketch will
appear on the screen.
Figure 7-2 Infinite Burst
Gated Burst
In Gated Mode, the generator controls the waveform output according to the
external signal level from the [Mod/FSK/Trig] connector at the rear panel.
Waveform functions which support Gated Burst are Sine, Square, Ramp, Pulse,
Noise and arbitrary waveforms (except DC).
When the gated signal is “True”, the generator outputs a continuous waveform;
when the gated signal is “False”, the generator completes the current period, and
then stops and holds on the voltage level corresponding to the initial burst phase
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Chapter 7 Burst
of the selected waveform. For Noise waveform, the output will stop immediately
once the gated signal becomes “False”.
Gated Burst could only be triggered by “Ext” trigger source. Users can also set the
“Start Phase”.
When Burst is enabled, press Type to select “Gated” and then press Polarity to
set the gated polarity as “Pos” (or “Neg”). The generator outputs burst waveform
only when the gated signal is positive.
Figure 7-3 Gated Burst
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Chapter 7 Burst
Burst Phase
Burst phase is defined as the phase of the start point of the burst.
When Burst is enabled, press Start Phase and then use the numeric keyboard or
knob to input the desired phase, the default value is 0 ° and the available range is
from 0 ° to 360 °.
 For Sine, Square and Ramp, 0 ° is the point where the waveform passes
through 0 V (or DC offset value) positively.
 For arbitrary waveform, 0 ° is the first point of the waveform.
 For Pulse and Noise, Start Phase is unavailable.
Burst Period
Burst period is only available for N cycle burst in internal trigger and is defined as
the time from the start of a burst to the start of the next burst.
 Burst period ≥ 1μs + waveform period × number of bursts. Here, waveform
period is the period of burst function (such as Sine and Square).
 If the burst period is too short, the generator will increase this period
automatically to allow the output of the specified number of cycles.
When Burst is enabled, press Type  “N_Cyc” Source “Int”  Burst
Period and use the numeric keyboard or knob to input the desired period value.
The default is 10ms, and the available range is from 2μs to 500s.
Gated Polarity
Polarity is only available in gated burst mode. The instrument outputs burst when
the gated signal at the [Mod/FSK/Trig] connector at the rear panel is “High
Level” or “Low Level”.
When Burst is enabled, press Type  “Gated”  Polarity to select “Pos” or
“Neg”. The default is “Pos”.
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Burst Delay
Burst delay is only available for N cycle and infinite burst mode. It is defined as the
time from when the generator receives the trigger signal to starts to output the N
Cycle (or Infinite) burst.
When Burst is enabled, press Type  “N_Cyc” or “Infinite”, then press
to
open the 2/2 menu page and press Delay. Use the numeric keyboard or knob to
input the desired delay. The delay is no less than 0s and no greater than 85s. The
default is 0s.
Burst Trigger Source
Burst trigger source could be internal, external or manual. The generator will
generate a burst output when a trigger signal is received and then wait for the next
trigger.
When Burst is enabled, press Source to select “Int”, “Ext” or “Manual”. The
default setting is “Int”.
1.
Internal Trigger
When internal trigger is selected, the generator can only output N cycle burst
and the burst frequency is determined by the “Burst Period”.
2.
External Trigger
When external trigger is selected, the generator can output N cycle, infinite or
gated burst. The generator accepts the trigger signal from the
[Mod/FSK/Trig] connector at the rear panel. A burst will be generated once
the connector receives a TTL pulse with specified polarity. To set the TTL pulse
polarity, press SlopeIn to select “Leading” or “Trailing” and the default
setting is “Leading”.
Note that in “Int” and “Manual” triggers, the corresponding menu is TrigOut.
The [Mod/FSK/Trig] connector at the rear panel is used as the output
terminal of trigger signal.
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Chapter 7 Burst
[Mod/FSK/Trig]
3.
Manual Trigger
When manual trigger is selected, the generator can output infinite or gated
burst. A burst will be generated from the corresponding channel (if currently
turned on) once you press Trigger1 or Trigger2 at the front panel. If the
corresponding channel is not turned on, the trigger will be ignored.
Trigger Output Edge
In burst mode, when the trigger source is “Int” or “Manual”, the generator would
output a TTL-compatible signal with specified edge from the [Mod/FSK/Trig]
connector at the rear panel.
[Mod/FSK/Trig]



7-8
In internal trigger, the generator outputs a square waveform with variable
duty cycle (related to the carrier period and number of cycles) from the
[Mod/FSK/Trig] connector at the start of burst. The trigger period is the
same with the specified burst period.
In manual trigger, the generator outputs a pulse with greater than 1μs pulse
width from the [Mod/FSK/Trig] connector at the start of burst.
In external trigger, the [Mod/FSK/Trig] connector is used as the input
terminal of external trigger signal and has no trigger output.
DG4000 Series User’s Guide
Chapter 7 Burst
RIGOL
When “Int” or “Manual” trigger is selected, press TrigOut to specify the edge of
the trigger output signal and the default is “Off”.
 Off: disable the trigger output signal.
 Leading: output the trigger signal at the rising edge.
 Trailing: output the trigger signal at the falling edge.
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Chapter 8 Counter
DG4000 provides a 7 digits/s counter which can measure various parameters (such
as frequency, period, duty cycle, positive pulse width and negative pulse width) of
external input signal and support statistic of measurement results. When the
statistic function is enabled, the instrument calculates the maximum, minimum,
average and standard deviation of the measurement values automatically and
displays the variation tendency of the measurement values in “Digital” or “Curve”
mode. In addition, the dual channels can still output normally when the counter is
enabled.
Subjects in this chapter:



To Enable the Counter
To Set the Counter
Statistic
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Chapter 8 Counter
To Enable the Counter
Press Counter at the front panel (the backlight of the key turns on) to enable
counter function and enter counter setting interface as shown in the figure below.
If the counter is currently turned on and the screen displays the counter interface,
press Counter again to disable counter function. If the counter is currently turned
on and the screen displays interfaces other than the counter interface, press
Counter to switch to the counter interface.
Gate Time
Attenuation
Coupling
HF Reject
Trigger Sensitivity
Input Impedance
Trigger Level
Figure 8-1 Counter Parameter Setting Interface
Note: the CH2 sync output will be disabled when the counter is enabled.
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Chapter 8 Counter
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To Set the Counter
You need to configure appropriate parameters for the counter.
1.
TrigSens
Set the trigger sensitivity of the measurement system. The default is 50% and
the range available is from 0% to 100%.
Press TrigSens. Use the numeric keyboard to input the desired value and
select the unit “%” from the pop-up menu.
2.
TrigLevel
Set the trigger level of the measurement system. The system triggers and
gets the measurement readings when the input signal reaches the specified
trigger level. The default is 0V and the range available is from -2.5V to 2.5V.
Press TrigLevel. Use the numeric keyboard to input the desired value and
select the desired unit (V or mV) from the pop-up menu.
3.
Impedance
Set the input impedance to “50Ω” or “HighZ” and the default is “HighZ”.
4.
Coupling
Set the coupling mode of the input signal to “AC” or “DC” and the default is
“AC”.
5.
Atten
Set the attenuation coefficient of the input signal to “X1” or “X10”.
6.
HFReject
High-frequency reject can be used to filter out the high-frequency
components and improve the measurement accuracy in low-frequency signal
measurement.
Press HFReject to enable or disable the high-frequency reject function.
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Chapter 8 Counter
Note: enable high-frequency reject when low-frequency signal with lower
than 1kHz frequency is measured to filter out high-frequency noise
interference; disable high-frequency reject when high-frequency signal with
greater than 1kHz frequency is measured.
7.
Gate Time
Press Gate Time to set the gate time of the measurement system and the
default is “1ms”.
GateT1
1ms
GateT2
10ms
GateT3
100ms
GateT4
1s
GateT5
10s
GateT6
>10s
8.
Measure
Press Measure to select the type of parameter to be measured by the counter.
The counter can measure the following parameters: frequency (“Freq”),
period (“Peri”), duty cycle (“Duty”), positive pulse width (“+Width”) and
negative pulse width (“–Width”) and the default is “Freq”.
9.
Statist
Press Statist to enable or disable statistic function. For detail information,
please refer to “Statistic”.
10. Auto
Press this key to set the counter parameters automatically.
After the counter parameters are set, the generator measures the external input
signal using the preset parameters.
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Chapter 8 Counter
Statistic
When the statistic function is enabled, the instrument calculates the maximum,
minimum, average and standard deviation of the measurement values
automatically and displays the variation tendency of the measurement values in
“Digital” or “Curve” mode.
1.
To enable the statistic
Press Statist  Statist to enable or disable statistic function and the default
is “OFF”.
2.
To select display mode
After the statistic function is enabled, press Display to set the display mode
of the statistic result to “Digital” or “Curve”, as shown in Figure 8-2 and Figure
8-3.
Figure 8-2 Statistic results (in “Digital” display mode)
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Chapter 8 Counter
Figure 8-3 Statistic results (in “Curve” display mode)
3.
8-6
To clear the statistic results
Press Clear to remove the current statistic result.
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Chapter 9 Store and Recall
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Chapter 9 Store and Recall
DG4000 can store the current instrument state and user-defined arbitrary
waveform data in internal or external memory and recall them when needed.
Subjects in this chapter:




Storage System Overview
To Select File Type
To Select Browser Type
File Operation
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Chapter 9 Store and Recall
Storage System Overview
DG4000 could store the current instrument state or user-defined arbitrary
waveform data in internal or external memory and recall them when needed.
DG4000 provides an internal non-volatile memory (C Disk) and an external
memory (D Disk).
 C Disk: provide 10 storage locations (STATE 1 to STATE 10) for state files and
10 storage locations (ARB 1 to ARB 10) for arbitrary waveform files. Users can
store instrument states and arbitrary waveform files (created by users or
downloaded using remote commands) to C Disk and copy the files in USB
storage device to C Disk.
 D Disk: available when USB storage device is detected at the USB Host
interface at the front panel.
Press Store (the key backlight goes on) at the front panel to enable the
Store/Recall function and open the Store/Recall interface as shown in the figure
below.
Figure 9-1 Store and Recall Interface
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Chapter 9 Store and Recall
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Note that: DG4000 can only identify filenames consist of Chinese characters,
English letters, number and underscore. If other characters are used to name the
file or folder, the name might be displayed in the store and recall interface
abnormally.
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Chapter 9 Store and Recall
To Select File Type
Press Store  File Type to select the desired file type. The file types available
include State File, Arb File, Txt File, Csv File and All File.
1. State File
Store the instrument state in internal or external memory in “*.RSF” format. At
most 10 instrument states can be stored in internal memory. The 10
instrument states stored correspond to “User1” to “User10” in Utility 
Preset (refer to Restore Default).
The state file stored includes waveforms selected, frequency, amplitude, DC
offset, duty cycle, symmetry, phase and modulation, sweep, burst parameters
used of the two channels and counter parameters.
2. Arb File
Store the user-defined arbitrary waveform in internal or external memory in
“*.RAF” format. At most 10 arbitrary files can be stored in internal memory.
3. Txt File
Read the Txt files stored in external memory. The data of each line (can not be
longer than 64 characters) is considered as an arbitrary waveform point and
the data of all the lines in the file are normalized to form an arbitrary waveform.
The arbitrary waveform is stored in volatile memory. The instrument will enter
the Arb interface automatically when the “Read” operation is finished.
Note: when “Dir” is selected in Browser, this menu is grayed out and
disabled.
4. Csv File
Read the csv files in external memory. The instrument will enter the Arb
interface automatically when the “Read” operation is finished. The arbitrary
waveform is stored in volatile memory.
Note: when “Dir” is selected in Browser, this menu is grayed out and
disabled.
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5. All File
Display all the files and folders in the currently selected directory. When this
menu is selected, the store function is not available.
To Select Browser Type
Press Store  Browser to switch between “Dir” and “File”. Use the knob to
select the desired directory or file.
 Dir: when this type is selected, use the knob to switch between C Disk and D
Disk (when USB storage device is inserted).
 File: when this type is selected, use the knob to switch files or folders under
the current directory.
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Chapter 9 Store and Recall
File Operation
When “File” is select as the browser type, users can perform a series of operations
on files including Save, Read, Copy, Paste, Delete and New Directory.
Save
1.
To Select File Type
Follow the introduction in To Select File Type to select the type of files to be
saved. Note that if the current File Type is “All File”, the save operation is
unavailable.
2.
To Open the Filename Input Interface
In Store/Recall interface, set the Browser as “File” and then press Save to
enter the filename input interface as shown in the figure below.
Filename Input Area
Virtual Soft Keyboard
Figure 9-2 Filename Input Interface (English)
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Chapter 9 Store and Recall
3.
To Input Filename
Press InType to select “Chinese” or “English”. The length of the file or folder
name is limited within 27 characters.

English Input (include number input):
Press +/- on the numeric keyboard to switch between uppercase and
lowercase.
Use the knob to select the desired character from the “virtual soft
keyboard”, then press Select to select the character and the character
selected would be displayed in the “Filename Input Area”. Use the same
method to input all the characters needed. You can press Delete to
delete the character at the cursor currently in the “Filename Input Area”.

Chinese Input:
Press +/- on the numeric keyboard to switch to lowercase.
Pinyin Input Area
Filename Input Area
Virtual Soft Keyboard
Chinese Character Display Area
Figure 9-3 Filename Input Area (Chinese)
Use the knob to select the desired character from the “virtual soft
keyboard”, then press Select to select the character and the character
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Chapter 9 Store and Recall
selected would be displayed in the “Pinyin Input Area”. After inputting the
pinyin of a Chinese character, use the numeric keyboard to select the No.
of the desired Chinese character (if the desired Chinese character is not
currently displayed, use the direction key to open the next page) and the
Chinese character selected would be displayed in the “Filename Input
Area”. Use the same method to input all the Chinese characters needed.
You can press Delete to delete the character in the “Pinyin Input Area”
and then the Chinese character at the cursor currently in the “Filename
Input Area”.
4.
To Save File
After finishing inputting filename in the filename input interface, press Save,
the generator will save the file under the currently selected directory with the
specified filename and file type and display corresponding prompt message
when the save operation succeeds.
Recall
1.
To Select File Type
Follow the introduction in To Select File Type to select the type of file to be
recalled. Note that if the current File Type is “All File”, the file to be recalled is
the currently selected file.
2.
To Select the File to be Recalled
Set Browser as “Dir” and use the knob to select the directory in which the file
to be recalled is stored. Then set Browser as “File”, and use the knob to
select the file to be recalled.
3.
To Recall File
Press Read, the generator will read the currently selected file and display
corresponding prompt message when the read operation succeeds.
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Copy
1.
To Select the File to be Copied
Set Browser as “Dir” and use the knob to select the directory in which the file
to be copied is stored. Then set Browser as “File”, and use the knob to select
the file to be copied.
2.
To Copy File
Press Copy, the generator will copy the file currently selected.
Paste
1.
To Copy a File
Copy a file following the introduction in Copy.
2.
To Select Paste Destination
Set Browser as “Dir” and use the knob to select a paste destination directory.
3.
To Paste File
Press Paste, the generator will paste the copied file in the directory currently
marked by the cursor and display corresponding prompt message when the
paste operation succeeds.
Delete
1.
To Select File or Folder to be Deleted
Set Browser as “Dir” and use the knob to select the directory in which the file
or folder to be deleted is stored. Then set Browser as “File”, and use the
knob to select the file or folder to be deleted.
2.
To Delete File or Folder
Press Delete, the generator will delete the currently selected file or folder
(empty folder).
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New Directory
DG4000 allows users to create new folders in external memory. Please make sure
that a USB storage device is inserted and identified by the instrument.
1. To Select Memory
In Store/Recall interface, set Browser as “Dir” and use the knob to select “D
disk”.
2. New Directory
Set Browser as “File”, use
to open the 2/2 menu page and press New
Directory to enter the folder name input interface ( same as shown in Figure
9-2 or Figure 9-3).
Note: when “C Disk” is selected, this menu is unavailable.
3. To Input Folder Name
Input the new folder name following the introduction in Save.
4. To Save Folder
After finishing inputting the new folder name in the folder name input interface,
press Save and the generator will create a new empty folder under the current
directory.
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Chapter 10 Utility and System Settings
DG4000 allows users to configure the parameters of dual channels, configure
remote interfaces and set system parameters.
Subjects in this chapter:











Overview
Channel Setting
To Use the External Power Amplifier (Option)
To Configure the Remote Interface
System Setting
Print
Test/Cal
Channel Coupling
Channel Copy
User-defined Waveform Key
Restore Default
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Chapter 10 Utility and System Settings
Overview
Press Utility at the front panel to open the operation interface as shown in the
figure below. This interface displays the current channel output configuration,
channel coupling configuration and system parameters.
Figure 10-1 Utility Interface
1.
2.
3.
CH1Set: set the output parameters of CH1.
CH2Set: set the output parameters of CH2.
PA Setup: set the external power amplifier parameters (only available when
the external power amplifier is connected).
4. I/O Setup: set the remote control interface parameters.
5. System: set the system parameters.
6. Print: set parameters related to screen print.
7. Test/Cal: calibrate DG4000 manually.
8. Coupling: set channel coupling parameters.
9. CH Copy: set channel copy parameters.
10. UserKey: define the shortcut of frequently used built-in waveform.
11. Preset: restore the generator to its default state or user-preset states.
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Channel Setting
This section takes CH1 for example to illustrate how to set the channel. The setting
method for CH2 is quite the same.
Sync
DG4000 could output the sync signals of basic waveforms (except Noise), arbitrary
waveforms (except DC), Harmonics, Sweep signal, Burst signal and modulated
signal from a single channel or two channels at the same time. The sync signal is
output from the [Sync] connector at the front panel.
1. Sync On/Off
Enable or disable sync signal at the [Sync] connector. Press Utility 
CH1Set  Sync to select “On” or “Off” for the sync signal output. The
default is “On”, namely transmitting the sync signal to the [Sync] connector.
If sync signal is disabled, the output level at the [Sync] connector is logic low.
2. Sync Signals of Various Waveforms
 For Sine, Square, Ramp and Pulse, the sync signal is a Square with 50%
duty cycle. It is TTL high level relative to 0V (or DC offset) when the
output is positive and TTL low level relative to 0V (or DC offset) when the
output is negative.
 For arbitrary waveform, the sync signal is a square with variable duty
cycle. The sync signal is TTL high level when the amplitude of the output
waveform reaches certain value.
 For harmonics, sync signal is a square with variable duty cycle and takes
the harmonic order as reference.
 For AM, FM, PM and PWM, in internal modulation mode, the sync signal is
a Square with 50% duty cycle and takes modulating frequency as
reference. It is TTL high level in the first half period of the modulation
waveform. In external modulation mode, there is no sync signal output.
 For ASK, FSK, PSK, BPSK, QPSK, 3FSK and 4FSK, the sync signal takes
ASK/FSK/PSK/BPSK/QPSK/3FSK/4FSK Rate as reference and is a Square
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Chapter 10 Utility and System Settings
with 50% duty cycle. For ASK, FSK and PSK, in external modulation mode,
there is no sync signal output.
For OSK, the sync signal is a square with 50% duty cycle and takes OSK
rate as reference. The sync signal is TTL high level when the internal
crystal oscillator starts to oscillate. In external modulation mode, there is
no sync signal output.
For Sweep, when “Mark” is disabled, the sync signal is a Square with 50%
duty cycle. It is TTL high level at the start of the sweep and changes to
TTL low level at mid-point of the Sweep and its frequency corresponds to
the specified sweep time, return time, start hold and end hold times.
When “Mark” is enabled, the sync signal is TTL high level when sweep
starts and transforms to TTL low level at the marked frequency point.
For a N cycle burst, the sync signal is TTL high level when burst starts and
transforms to TTL low level while the specified number of cycles end (if
the waveform has a relative start phase, the crossing point may not be
zero). For an infinite burst, its sync signal is the same as the sync signal
of a continuous waveform.
For an external Gated burst, its sync signal follows its gated signal. Note
that the sync signal will not transform to TTL low level until the last period
is finished (if the waveform has a relative start phase, the crossing point
may not be zero).
Sync Polarity
Set the sync signal on the [Sync] connector as normal or inverted.
Press Utility  CH1Set  Polarity to select “Pos” or “Neg”.
 Pos: output normal sync signal.
 Neg: output inverted sync signal.
Notice that the sync signal related to the waveform is not inverted even when the
waveform is inverted.
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Output Polarity
Set the signal on the [Output1] connector as normal or inverted. Waveform
inverts relatively to the offset voltage.
Press Utility  CH1Set  Output to select “Normal” or “Invert”. The default is
“Normal”. The waveform of the first half period of the cycle is positive in “Normal”
mode and negative in “Invert” mode.
Normal
Invert
Normal
Invert
0V
Offset
0V
Pay



attention to the following after the waveform inverts:
None of the offset voltage would change.
Waveform is not inverted in graphic mode.
Sync signal related to the waveform is not inverted.
Resistance Setting
Resistance setting is applicable to output amplitude and DC offset voltage. DG4000
has a 50Ω fixed serial output resistance for the [Output1] connector at the front
panel. If the actual load does not match the specified value, the voltage level
displayed would not match the voltage level of the component under test. To
ensure correct voltage level, the load resistance setting must match the actual
load.
Press Utility  CH1Set  Resi to select “HighZ” or “Load”. The default is
“HighZ”. If “Load” is selected, use the numeric keyboard to set specific resistance
value. The default is 50Ω and the available range is from 1Ω to 10kΩ. Resistance
setting will be displayed on the screen. As shown in the figure below, CH1
resistance setting is a specified value “50 Ω” and CH2 resistance setting is “HighZ”.
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Chapter 10 Utility and System Settings
Resistance Setting
Figure 10-2 Resistance Setting
The generator will adjust the output amplitude and offset voltage automatically
once the resistance setting is changed. For example, the current amplitude is 5Vpp.
At this point, change the output resistance from 50Ω to HighZ and the amplitude
displayed on the screen will double to 10Vpp. If the output resistance is changed
from HighZ to 50Ω, the amplitude will reduce to half of the previous value (2.5Vpp).
Notice that only the displayed values change with the parameter and the real
output from the generator does not change.
Noise Setting
DG4000 supports to superpose a gauss noise onto its output signal. This function
is called noise superposition. The signal superposed with noise can be used to test
the anti-noise capability of instrument.
Press Utility  CH1Set  Noise to enable or disable noise superposition
function. The default is “OFF”. When Mod, Sweep or Burst is enabled, this menu is
grayed out and disabled.
Noise Scale
Set the percentage of the amplitude of the noise superposed onto the output
signal takes up in the signal amplitude.
Press Utility  CH1Set  Noise Scale. Use the numeric keyboard to input the
desired value and select the unit “%” from the unit menu. The range available is
from 0% to 50% and the default is 10%. Note that Noise Scale is grayed out and
disabled when noise superposition function is disabled.
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To Use the External Power Amplifier (Option)
You can connect external power amplifier to DG4000 and set the power amplifier
parameters to amplify the signal before output. To use the external power amplifier,
install the PA1011 option.
PA1011 is an optional accessory for RIGOL DG series function/arbitrary waveform
generators. PA1011 provides 1MHz maximum full power bandwidth and greater
than 80V/µs output slew rate. It can be used with any of the DG series products to
quickly build test platform or be used with other signal generators as an
independent power amplifier.
Main features of PA1011:
 Flexible and easy communication with the RIGOL DG series signal generator
or PC via the USB interface.
 Users can set the gain (X1 or X10), polarity (normal or invert), output offset
and output switch of the amplifier via the RIGOL DG series signal generator
or the PC software.
 Provide up to 50kΩ input impedance.
 An integrated output protection circuit (output overcurrent protection and
internal temperature abnormity protection) ensures the stable, reliable and
safe operation of the instrument.
 Small in size, portable and easy to use.
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Front Panel:
Status Indicator
Signal Output Terminal
Signal Input Terminal
Status Indicator
Power: illuminated in red indicating that the power is successfully connected.
Output: illuminated in green indicating that the output is enabled.
Link: illuminated in yellow indicating that the USB connection is successful.
CAUTION
The input impedance of the instrument (Zi) is 50kΩ. The range of the
input voltage is from -10V to +10V when the voltage gain is X1 and from
-1.25V to +1.25V when the voltage gain is X10. When the input exceeds
these ranges, the instrument might be damaged or hazardous might occur.
CAUTION
The output impedance of the instrument (Zo) is less than 2Ω. The range of
the output voltage is from -12V to +12V. The actual output voltage can
reach ±12.5V, but the total harmonic distortion of the waveform will
increase.
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Rear Panel:
USB Device
Power Input Terminal Fan Cooling Apertures
CAUTION
Do not use other type of adapter to provide power for PA1011; otherwise,
the instrument performance might be affected or the instrument might be
permanently damaged.
CAUTION
Make sure that the vents at the side and the fan cooling apertures at the
rear panel of PA1011 are not blocked during operation to avoid affecting
the normal operation of the instrument.
PA1011 Accessories:
Name
Qty.
Explanation
Power Cord
1
Connect AC power to the power adapter.
Power Adapter
1
Output 12V, 4A signal.
USB Cable
1
Connect PA1011 and DG4000.
BNC Cable
1
Connect PA1011 and DG4000.
CD
1
Provide the PC software installation program of
PA1011.
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Chapter 10 Utility and System Settings
Connect DG4000 and PA1011:
Output
BNC Cable
PA1011
DG4000
USB Host
Input
USB Cable
USB Device
Output
After the power amplifier is successfully connected, press Utility  PA Setup to
open the parameter setting interface of the power amplifier.
1.
Switch
Press this key to enable or disable the external power amplifier. When enabled,
PA amplifies the input signal and then output it. When disabled, there is no
output from PA.
2.
Gain
Press this key to set the amplification gain of the signal output from the power
amplifier to “X1” or “X10”. Wherein, “X1” indicates output without gain and
“X10” indicate amplifying the signal for 10 times and then output it.
3.
Output
Press this key to set the output signal of the power amplifier to “Normal” or
“Invert”.
4.
Offset
Press this key to enable or disable the output offset at the output terminal of
the power amplifier. When it is enabled, use the numeric keyboard or knob to
set the offset and the range is from -12V to +12V (the default is 0V).
5.
Store
Press this key to store the current working state of the power amplifier to its
internal memory. When the power amplifier is enabled the next time, it will
automatically recall the last working state stored.
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Tip
For the specifications of PA1011, refer to Appendix B.
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Chapter 10 Utility and System Settings
To Configure the Remote Interface
DG4000 is configured with USB and LAN interfaces and supports users to
configure the interface parameters for remote communication.
Press Utility  I/O Setup to open the I/O setting menu and set the LAN
interface parameters for remote communication or select the type of device
connected to the USB interface.
LAN Setting
Press Utility  I/O Setup  LAN to open the LAN parameters configuration
interface as shown in the following figure. Users can examine network status and
configure network parameters.
Current IP Configure Mode
Network Status
IP Configure Mode status
MAC Address
VISA Descriptor
Figure 10-3 LAN Setting Interface
Network Status
Different prompt messages will be provided by the generator based on the current
network status.
 Connected: LAN connection is successful.
 Disconnect: LAN connection is unsuccessful.
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MAC Address
MAC (Media Access Control) address, also called hardware address, is used for
defining the position of the network device. For a generator, the MAC address is
always unique. It is always used to identify the instrument while assigning IP
address for instrument. MAC address (48 bits, namely 6 bytes) is usually expressed
in hexadecimal format, such as 00-14-0E-42-12-CF.
VISA Descriptor
VISA (Virtual Instrument Software Architecture) is an advanced application
programming interface developed by NI (National Instrument) for communications
with various instrument buses. It uses the same method to communicate with
instruments regardless of the types of the instrument interfaces (GPIB, USB,
LAN/Ehternet or RS232). The GPIB, USB, LAN/Ethernet or RS232 instrument is
called “resource”.
VISA descriptor is the resource name and describes the accurate name and
location of the VISA resource. If LAN interface is currently used for communication
with the instrument, the VISA descriptor is TCPIP0::172.16.2.13::INSTR.
IP Configure Mode
IP configure mode could be DHCP, AutoIP or ManualIP. If the network is
disconnected currently, there will be nothing to display behind “IP Configure
Mode:”. In different IP configuration modes, the configuration modes of network
parameters (such as IP address) are different.
1.
DHCP
 In DHCP mode, DHCP server in the current network assigns LAN
parameters, e.g. IP address, for the generator.
 Press DHCP to select “On” or “Off” to turn DHCP mode on or off.
2.
AutoIP
 In AutoIP mode, the generator acquires IP address within 169.254.0.1
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
3.
Chapter 10 Utility and System Settings
and 169.254.255.254 and subnet mask 255.255.0.0 automatically
according to the current network configuration.
Press AutoIP to select “On” or “Off” to turn AutoIP mode on or off. To
enable this mode, set DHCP as “Off”.
ManualIP
 In ManualIP mode, the LAN parameters of the generator, e.g. IP address,
are defined by users.
 Press ManualIP to select “On” or “Off” to turn ManualIP mode on or off.
To enable this mode, set DHCP and AutoIP as “Off”.
 The IP address format is nnn.nnn.nnn.nnn. The first nnn ranges from 0 to
223 (except 127) and the other three nnn range from 0 to 255. It is
recommended that users acquire an available IP from their network
administrator.
 Press IP Address and use the numeric keyboard and direction keys to
enter your desired IP. The setting is stored in non-volatile memory and
will be loaded automatically when the generator is powered on the next
time if DHCP and AutoIP are set as “Off”.
Tips


10-14
If all the three IP configuration modes are “On”, the priority of
parameters configuration from high to low is “DHCP”, “AutoIP” and
“ManualIP”.
The three IP configuration modes cannot be set as “Off” at the same
time.
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To Set Subnet Mask
In ManualIP mode, the subnet mask could be manually set.
 The format of subnet mask is nnn.nnn.nnn.nnn, where nnn ranges from 0 to
255. It is recommended that users acquire an available subnet mask from
their network administrator.
 Press SubMask and use the numeric keyboard and direction keys to enter
your desired subnet mask. The setting is stored in non-volatile memory and
will be automatically loaded when the generator is powered on the next time if
DHCP and AutoIP are set as “Off”.
To Set Default Gateway
In ManualIP mode, the default gateway could be manually set.
 The format of default gateway is nnn.nnn.nnn.nnn, where the first nnn ranges
from 0 to 223 (except 127) and the other three nnn range from 0 to 255. It is
recommended that users acquire an available default gateway from their
network administrator.
 Press Default Gateway and use the numeric keyboard and direction keys to
enter your desired gateway address. The setting is stored in non-volatile
memory and will be automatically loaded when the generator is powered on
the next time if DHCP and AutoIP are set as “Off”.
To Set Domain Name Server (DNS)
In ManualIP mode, the DNS could be manually set.
 The DNS format is nnn.nnn.nnn.nnn, where the first nnn ranges from 0 to 223
(except 127) and the other three nnn range from 0 to 255. It is recommended
that users acquire an available DNS address from their network administrator.
 Press DNS Server and use the numeric keyboard and direction keys to enter
your desired DNS address. The setting is stored in non-volatile memory and
will be automatically loaded when the generator is powered on the next time if
DHCP and AutoIP are set as “Off”.
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Default Configuration
Press Default Config and the prompt message “Restore network settings to
preset values of LXI?” is displayed. Press OK to restore the network parameters to
their default values. By default, DHCP and AutoIP are enabled and ManualIP is
disabled.
Current Configuration
Press Current Config to examine the MAC address of the current instrument, the
current LAN parameters and LAN status information.
OK
Press Ok to enable the current setting of LAN parameters.
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To Set USB Device Type
The USB Device interface at DG4000 rear panel could be connected with PC or
PictBridge printer to control the instrument remotely or to print the contents
displayed on the screen.
Press Utility  I/O Setup  USB Dev:
 Select “PC”: users can use PC software to edit arbitrary waveform and
download it to the internal memory of the generator. Users can also use the
SCPI commands to control the generator.
 Select “Printer”: press Utility  Print Dest to select “Printer”. Users can
press Print to print the contents currently displayed in the interface.
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System Setting
Number Format
You can set the display formats of the decimal point and thousands separator in
number parameters. This setting is stored in non-volatile memory. Press Utility 
System  Number Format to enter the number format setting interface.
 Decimal Point: could be set as dot “.” or comma “,” and the default is dot “.”.
 Thousands separator: could be set as “On”, “Off” or “Space”. The default is
“On”.
Number format has 6 combinations, as shown in the figure below:
Dot + On (Comma)
Dot + Space
Dot + Off
Comma + On (Dot)
Comma + Space
Comma + Off
Note: Decimal point and thousands separator cannot be set as dot or comma at
the same time.
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Language
At present, DG4000 supports simplified Chinese and English system languages,
including Chinese/English menu, help information, prompt messages, interface
display and Chinese/English input method.
Press Utility  System  Language to select the desired language. This
setting is stored in non-volatile memory and will not be influenced by “Preset”.
Power On Setting
Set the configuration to be used when the instrument is powered on the next time
to “Default” or “Last”. The default setting is “Default”.
 Last: include all the system parameters, except output configuration, clock
source.
 Default: denote the factory default except some parameters (such as:
Language).
Press Utility  System  PowerOn to select the desired configuration type.
This setting is stored in non-volatile memory and will not be influenced by “Preset”.
Power Setting
Set the start-up mode when the generator is powered on to “Auto” or “Manual”
and the default is “Auto”.
 Auto: the instrument starts automatically after power-on.
 Manual: users need to press the power switch at the front panel to start the
instrument after power-on.
Press Utility  System PowerSet to select the desired type.
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Chapter 10 Utility and System Settings
Brightness
Press Utility  System  Light and use the numeric keyboard or knob to set
the brightness of the screen. The range is from 1% to 100%. This setting is stored
in non-volatile memory and will not be influenced by “Preset”.
Beeper
When the beeper in DG4000 is enabled, a beep is generated when an error occurs
during front panel or remote operation.
Press Utility  System  Beep to select “On” or “Off” and the default is “On”.
The current setting is stored in non-volatile memory and will not be influenced by
“Preset”.
Screen Saver
Enable or disable screen saver mode.
Press Utility  System  ScrnSvr to select “On” or “Off” and the default is
“Off”. The current setting is stored in non-volatile memory and will not be
influenced by “Preset”.
Clock Source
DG4000 provides internal 10MHz clock source and accepts external clock source
from the [10MHz In/Out] connector at the rear panel. It can also output clock
source from the [10MHz In/Out] connector.
Press Utility  System  CLK to select “Int” or “Ext”. The default is “Int”. If
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“Ext” is selected, the instrument will detect whether a valid external clock signal is
input from the [10MHz Out/In] connector at the rear panel. If no valid clock
source is detected, the prompt message “Not detect a valid external clock!” would
be displayed and the clock source would be switched to “Int”.
Users can also synchronize two or more instruments by setting the clock source.
When two instruments are synchronized, the “Align Phase” function can not be
used. “Align phase” is only applicable to be used to adjust the phase relation
between two output channels of the same instrument and can not be used to
change the phase relation between the output channels of two instruments. Users
can change the phase relation between two instruments by change the “Start
Phase” of each channel.
Sync methods for two or more instruments:
 Synchronization between two instruments:
Connect the [10MHz In/Out] connector of Generator A (“Internal” clock) to
the [10MHz In/Out] connector of Generator B (“External” clock) and set the
output frequencies of A and B as a same value to realize synchronization
between two instruments.
 Synchronization among multi-instruments (Method 1):
Connect the [10MHz In/Out] connector of Generator A (“Internal” clock) to
the [10MHz In/Out] connector of Generator B (“External” clock), then
connect the [10MHz In/Out] connector of Generator B with the [10MHz
In/Out] connector of Generator C (“External” clock), etc. Finally, set the output
frequencies of all the generators as a same value to realize synchronization
among multi-instruments.
 Synchronization among multi-instruments (Method 2):
Divide the 10MHz clock source of a Generator (“Internal” clock) into multiple
channels, and then connect them to the [10MHz In/Out] connectors of
other generators (“External” clock) respectively, and finally set the output
frequencies of all the generators as a same value to realize synchronization
among multi-instruments.
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Chapter 10 Utility and System Settings
System Information
Press Utility  System  Sys Info and the model, serial number, software,
FPGA, hardware and keyboard version numbers are displayed in the system
information interface.
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Print
Users could store the contents displayed on the screen into external USB storage
device in picture format or print them via PictBridge printer. Press Utility  Print
to open the print setting interface.
1.
To Print the Screen Using PictBridge Printer
First, connect the pictBridge printer. Connect the USB Device interface of the
signal generator to the USB Host interface of the Printer using USB cable (as
shown in the figure below).
USB Cable
DG4000
PictBridge Printer
USB Host
USB Device
Press Utility  I/O Setup  USB Dev to set the device type to “Printer”.
Press Utility  Print Dest to select “Printer”. Then, press PictBridge to
enter the print setting menu.
 Copies: press this softkey and use the knob to input the number of
copies to be printed. The range is from 1 to 1000.
 Palette: press this softkey to set the color of the image to “Gray” or
“Color”.
 Inverted: press this softkey to enable or disable inverted print.
2.
To Store Screen to USB Storage Device
Please connect a USB storage device first. When the connection succeeds, an
icon will be displayed in the status bar on the screen and the
corresponding prompt message will be displayed.
Press Utility  Print Dest to select “U Disk” and then press Format to
set to store the screen picture in “Bmp” or “Jpeg” format.
3.
To Execute Print
Press Print at the front panel and the generator will print the screen via the
PictBridge printer or store the screen in USB storage device in picture format
according to the preset configuration.
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Chapter 10 Utility and System Settings
Note: if no PictBridge printer is currently connected to the generator or no
USB storage device is detected, the print operation would fail and the prompt
message “PictBridge equipment is not connected.” or “USB flash driver not
detected. Print invalid.” would be displayed.
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Chapter 10 Utility and System Settings
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Test/Cal
Press Utility at the front panel, use
to select the 2/2 page menu and press
Test/Cal to open the Test/Cal interface. You can calibrate DG4000 manually after
inputing the correct calibration password.
1.
Secure Code
Press this key and use the knob and direction keys to enter the correct
calibration password.
2.
Secure
By default, this menu is “On”. It will be “Off” only when the correct calibration
password is entered.
3.
CaliSelf
This menu is available after the correct calibration password is entered. You
can refer to the DG4000 Calibration Guide to calibrate the instrument
manually.
4.
Preset
Press this softkey and the calibration values are restored to their default
values.
Note: manual calibration by users is not recommended. If calibration is required,
please contact RIGOL customer service department or the local distributor.
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Chapter 10 Utility and System Settings
Channel Coupling
DG4000 supports to enable frequency, phase and amplitude couplings separately
or at the same time. When coupling is enabled, set CH1 or CH2 as the “base”
channel and set the frequency, phase or amplitude deviation of the two channels.
Then when the frequency, phase or amplitude of the base channel is changed, the
corresponding parameter of the other channel will change automatically and
always keeps the specified frequency, phase or amplitude deviation.
Press Utility at the front panel, use
to open the 2/2 menu page and press
Coupling to enter the channel coupling interface.
1.
To Set the Coupling Base
Press Base to set “CH1” or “CH2” as the base source of coupling. Here, “CH2”
is selected.
Note that the coupling base can not be changed when the coupling function is
enabled. At this point, this menu is grayed out and disabled.
2.
To Enable Coupling Function
Press Coupling to turn “On” or “Off” the coupling function. The default is
“Off”.
Press FreqCoup to turn frequency coupling “On” or “Off”. After frequency
coupling is enabled, use the numeric keyboard to input the desired frequency
deviation. Here, it is set to “100Hz”.
Press PhaseCou to turn phase coupling “On” or “Off”. After phase coupling is
enabled, use the numeric keyboard to input the desired phase deviation. Here,
it is set to “10°”.
Press AmpCoup to turn amplitude coupling “On” or “Off”. After amplitude
coupling is enabled, use the numeric keyboard to input the desired amplitude
deviation. Here, it is set to “1Vpp”.
Parameter relations between CH1 and CH2:
FCH1=FCH2 + 100Hz
PCH1=PCH2 + 10°
ACH1=ACH2 + 1Vpp
Green “*” marks are displayed on the left of the frequency, phase and amplitude of
the coupling base source as shown in the figure below, indicating that the
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Chapter 10 Utility and System Settings
RIGOL
generator is in frequency, phase and amplitude couplings. Change the frequency,
phase and amplitude of CH2 to 100Hz, 0° and 1Vpp respectively and the
parameters of CH1 will change to 200Hz, 10° and 2Vpp automatically.
Coupling Mark
Figure 10-4 Channel Coupling
Key Points:
 Channel coupling is only available when the waveforms of the two channels
are basic waveforms, including Sine, Square, Ramp and Arbitrary waveform
(except DC).
 If the sum of the frequency, phase or amplitude of the base channel and the
corresponding deviation set exceeds the upper limit of frequency, phase or
amplitude of the non-base channel, the generator will adjust the frequency,
phase or amplitude of the non-base channel to avoid parameter overrange.
 The frequency, phase and amplitude of the non-base channel can not be
modified directly.
 When the phase of the base channel is changed, the phase (phase displayed
on the interface) of the non-base channel will change accordingly. At this point,
align phase between the two channels can be realized without executing the
Align Phase operation.
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
Chapter 10 Utility and System Settings
Channel coupling and channel copy are mutually exclusive. The prompt
message “Channel copy not allowed in Coupling mode.” would be displayed if
users execute channel copy operation (press CH1=CH2 at the front panel)
when channel coupling is enabled.
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Chapter 10 Utility and System Settings
RIGOL
Channel Copy
DG4000 supports state copy or waveform copy function between its two channels,
namely copy the state (parameters and output configuration) or arbitrary
waveform parameters of one channel to the other or swap the states of the two
channels.
Press Utility  CH Copy to set the parameters of channel copy. This setting will
not be affected by the preset operation.
1.
Copy Type
Press Utility  CH Copy Type at the front panel to set the content of
channel copy to “Sate” or “Wave”.
 State: include waveform (except volatile waveform) and waveform
parameters (such as frequency and amplitude), functions (such as
modulation, sweep and burst) as well as output configurations (such as
sync, resistance and polarity) of the channel.
 Wave: arbitrary waveform data (except waveform parameters). Available
only when both of the two channels select arbitrary waveforms.
2.
Copy Direction
Press Utility  CH Copy Direction to set the direction of channel copy as
“CH1->CH2”, “CH2->CH1” or “Swap” (only available when the copy type is set
to “State”, swap the states of CH1 and CH2).
Then, press CH1 CH2 at the front panel under any interface to execute the
channel copy operation.
Note:
Channel coupling and channel copy are mutually exclusive. Channel copy (press
CH1 CH2 at the front panel) is forbidden when channel coupling is enabled.
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Chapter 10 Utility and System Settings
User-defined Waveform Key
The User key at the front panel of DG4000 provides a shortcut for users. You can
define this shortcut key as the desired built-in waveform or waveform stored. You
can recall and set the desired waveform under any operation interface once you
press this shortcut key.
To modify the waveform recalled by this shortcut key, press Utility  UserKey to
open the user-defined waveform interface. Use the knob to select the desired
waveform (such as: AbsSine) from the interface, use
to open the 2/2 menu
page and then press Select.
Note: to define User as the shortcut key of the stored waveform, press Utility 
UserKey, use
to open the 2/2 menu page and press Stored to select the
desired file. Stored is only available when “.RAF” file is currently stored in the
instrument.
Figure 10-5 User-defined Waveform Interface
At this point, pressing User under any interface would output AbsSine signal from
the corresponding channel (if currently turned on) and you can also modify the
AbsSine signal parameters.
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DG4000 Series User’s Guide
Chapter 10 Utility and System Settings
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Figure 10-6 Press User Key to Quickly Edit Waveform Parameters
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Chapter 10 Utility and System Settings
Restore Default
Restore the generator to its default state or user-preset states.


Default State: the parameter values are as shown in the table below. Note
that items marked with “*” will not be affected by the preset operation.
User-preset States: correspond to the 10 state files stored in internal memory.
Press Utility  Preset to select “Default” or one of “User1” to “User10”. Press
Preset at the front panel under any state to switch the instrument to the specified
state. Note that before selecting “User1” to “User10”, make sure that valid state
file is stored in the corresponding storage location.
Table 10-1 Factory Default Values
Parameters
Defaults
Channel Parameters
Current Carrier Waveform
Sine
Output Resistance
HighZ
Sync Output
On
Sync Polarity
Pos
Output Polarity
Normal
Noise
OFF
Noise Scale
10%
Coupling
Off
Coupling Base
CH1
Phase Deviation
0°
Frequency Deviation
0μHz
Amplitude Deviation
0Vpp
Basic Waveform
Frequency
1kHz
Amplitude
5Vpp
Amplitude Unit
Vpp
Offset
0VDC
Start Phase
0°
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DG4000 Series User’s Guide
Chapter 10 Utility and System Settings
Square Duty Cycle
50%
Ramp Waveform Symmetry
50%
Pulse Duty Cycle
50%
Pulse Width
500μs
Pulse Leading Edge
1.9531μs
Pulse Trailing Edge
1.9531μs
RIGOL
Arb Waveform
Built-in Arbitrary Waveform
Sinc
Point By Point Output
Off
Harmonic
Order
2
Type
Even
Amplitude
1.264,7Vpp
0°
Phase
AM Modulation
Modulation Source
Int
Modulating Waveform
Sine
AM Frequency
100Hz
Modulation Depth
100%
FM Modulation
Modulation Source
Int
Modulating Waveform
Sine
FM Frequency
100Hz
Frequency Deviation
1kHz
PM Modulation
Modulation Source
Int
Modulating Waveform
Sine
PM Frequency
100Hz
Phase Deviation
90°
PWM Modulation
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Chapter 10 Utility and System Settings
Modulation Source
Int
Modulating Waveform
Pulse
Modulating Frequency
100Hz
Width Deviation
200μs
Duty Cycle Deviation
20%
ASK Modulation
Modulation Source
Int
ASK Rate
100Hz
Modulating Amplitude
2Vpp
ASK Polarity
Pos
FSK Modulation
Modulation Source
Int
FSK Rate
100Hz
Hop Frequency
10kHz
FSK Polarity
Pos
PSK Modulation
Modulation Source
Int
PSK Rate
100Hz
PSK Phase
180°
PSK Polarity
Pos
BPSK Modulation
Rate
100Hz
Phase
180°
Modulating Waveform
Sine
QPSK Modulation
Rate
100Hz
Phase 1
45°
Phase 2
135°
Phase 3
225°
Modulating Waveform
Sine
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Chapter 10 Utility and System Settings
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3FSK Modulation
Key Frequency
100Hz
Hop Frequency 1
100Hz
Hop Frequency 2
100Hz
4FSK Modulation
Key Frequency
100Hz
Hop Frequency 1
100Hz
Hop Frequency 2
100Hz
Hop Frequency 3
100Hz
OSK Modulation
Modulation Source
Int
Rate
1kHz
Oscillate Time
100μs
Sweep
Sweep Type
Linear
Step
2
Sweep Time
1s
Start Hold
0s
End Hold
0s
Return Time
0s
Start Frequency
100Hz
End Frequency
1kHz
Center Frequency
550Hz
Frequency Span
900Hz
Mark Frequency
Off
Trigger Source
Int
Trigger Output
Off
Slope Input
Leading
Burst
Burst Mode
N Cycle
Cycle Number
1
Start Phase
0°
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Chapter 10 Utility and System Settings
Delay
0s
Gated Polarity
Pos
Trigger Source
Int
Trigger Output
Off
Trigger Input
Leading
Trigger Period
10ms
System Parameter
DHCP
On
Auto IP
On
Manual IP
Off
Beeper
On
Power On Setting
Default
Screen Saver
On
Clock Source
Internal
Decimal Point
Dot
Thousand Separator
Comma
Brightness*
Factory Delivery Setting
Language*
Factory Delivery Setting
Print Destination
USB Storage Device
Picture Format
Bmp
Counter
Sensitivity
50%
Trigger Level
0V
Input Resistance
HighZ
Coupling
AC
Attenuation
×1
HF Reject
OFF
Gate Time
1ms
Measurement Item
Frequency
Statistic Function
OFF
Display Format
Digital
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Chapter 11 Remote Control
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Chapter 11 Remote Control
Users can control DG4000 through remote interfaces. This chapter provides basic
information and method of remote control of the instrument.
Subjects in this chapter:


Remote Control Overview
Remote Control Mode
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Chapter 11 Remote Control
Remote Control Overview
DG4000 can communicate with PC through USB or LAN interface to realize remote
control on the basis of SCPI commands (Standard Commands for Programmable
Instruments). DG4000 supports SCPI 1999.1.
When the instrument is working in remote mode, the
indicator in the upper
right corner of the user interface will light and the keys at the front panel are
locked. Now you can return the instrument to local mode by pressing Burst.
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Chapter 11 Remote Control
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Remote Control Mode
Remote control of DG4000 on the basis of SCPI commands mainly contains the
following two modes:
1. To control DG4000 by programming
2. To control DG4000 by using PC software
User-defined Programming
Users can program and control DG4000 by using the SCPI commands on the basis
of NI-VISA (National Instrument – Virtual Instrument Software Architecture)
library.
1.
Install NI-VISA Library
You need to install the VISA library of NI (download from
http://www.ni.com/visa/) on your PC. NI-VISA is an application program
interface developed by NI according to the VISA standards. You can use
NI-VISA to realize the communication between the generator and PC through
instrument buses (such as USB). VISA defines a set of software commands
with which users can control the instrument without the need to understand
how the interface bus works. For details, please refer to NI-VISA Help.
2.
Build Communication between Instrument and PC
You need to build the communication between the generator and PC.
 USB Interface: use USB cable to connect the generator and PC. At this
point, the hardware update wizard dialog box is displayed. Then, follow
the instructions to install the “USB Test and Measurement Device”.
Steps:
1) Select “Install the software automatically (Recommended)”;
2) Click “Next”;
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Chapter 11 Remote Control
1
2
3)
4)
Select “Don’t search. I will choose the driver to install”;
Click “Next”;
3
4
5)
6)
11-4
Select “USB Test and Measurement Device”;
Click “Next”;
DG4000 Series User’s Guide
RIGOL
Chapter 11 Remote Control
5
6
7)
When the installation is finished, click “Finish”.
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Chapter 11 Remote Control
7

3.
11-6
LAN Interface: connect your generator to the local area network of the PC
and set the network parameters correctly following the instructions in
LAN Setting.
Programming
Then, you can select a familiar software developing tool for programming. The
developing tools available include Visual C++ 6.0, Visual Basic 6.0, LabVIEW
8.6 and etc. For detailed information about SCPI commands and programming
method of DG4000, refer to DG4000 Programming Guide.
DG4000 Series User’s Guide
Chapter 11 Remote Control
RIGOL
To Use PC Software
You can control DG4000 remotely by sending SCPI commands using PC software.
PC software supported by DG4000 includes:
 General PC software Ultra Sigma of RIGOL
 Measurement & Automation Explore of NI (National Instrument Corporation)
 Agilent IO Libraries Suite of Agilent (Agilent Technologies, Inc.)
This section introduces in details how to use Ultra Sigma to send commands
through USB and LAN interfaces to control DG4000. Please refer to Ultra Sigma
Help to install the software and the components required correctly.
1.
To Control the Instrument through USB
1) Connect the devices
Connect the generator (use the USB Device interface at the rear panel)
with your PC using USB cable.
2) Install the USB drive
As the generator is a USB-TMC device, after you connect the generator to
the PC and turn both on, the PC will display the hardware update wizard
dialog box. Please install the “USB Test and Measurement Device” driver
following the directions of the wizard.
3) Search device resource
Start up Ultra Sigma, the software starts searching the generator
resources currently connected to the PC automatically, or click
to search manually. The status bar of Ultra Sigma at
present is as shown in the figure below:
4) View the resource
The resources that have been searched successfully are shown under the
“RIGOL Online Resource” catalog and the instrument model and VISA
descriptor are also displayed, such as
DG4000 Series User’s Guide
11-7
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Chapter 11 Remote Control
DG4162 (USB0::0x1AB1::0x04B0::DG41620000::INSTR).
5) Communicate Test
Right click the resource name
“DG4162 (USB0::0x1AB1::0x04B0::DG41620000::INSTR)” and select
“SCPI Control Panel” to open the remote command control panel through
which users can send commands and read data.
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Chapter 11 Remote Control
2.
To Control the Instrument through LAN
1) Connect the devices
Connect the generator to your LAN using network cable.
2) Configure LAN parameters
Set the LAN parameters of the generator according to the introductions in
To Configure the Remote Interface.
3) Search device resource
Start-up Ultra Sigma and click
, then click
in
the pop-up window, the software starts searching the generator
resources connected to LAN. Instrument resources searched will be
displayed in the right of the window. Select your desired resource and
click
DG4000 Series User’s Guide
, as shown in the following figures.
11-9
RIGOL
Chapter 11 Remote Control
4) View the resource
The resources that have been searched successfully are shown under the
“RIGOL Online Resource” catalog and the instrument model and VISA
descriptor are also displayed, such as
DG4162 (TCPIP::172.16.3.16::INSTR).
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Chapter 11 Remote Control
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5) Communication test
Right click the resource name “DG4162 (TCPIP::172.16.3.16::INSTR)”
and select “SCPI Control Panel” to open the remote command control
panel through which users can send commands and read data.
6) Load LXI webpage
The generator conforms to LXI-C standards. You can load LXI webpage
DG4000 Series User’s Guide
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Chapter 11 Remote Control
conveniently through Ultra Sigma (right-click the resource name and
select “LXI-Web”). On the webpage, some important information about
the generator such as the model, manufacturer, serial number,
description, MAC address and IP address is shown.
Tip
You can also load LXI webpage by input the IP address of the generator in the
address bar of the PC browser.
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DG4000 Series User’s Guide
Chapter 12 Troubleshooting
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Chapter 12 Troubleshooting
This chapter lists the commonly encountered failures of DG4000 and their
solutions. When you encounter those problems, please solve them following the
corresponding steps. If the problem persists, please contact RIGOL and provide
your device information (Utility  System  Sys Info).
1.
The screen is still dark (no display) after power on:
(1)
(2)
(3)
(4)
2.
Check if the power is correctly connected.
Check if the power switch is really on.
Restart the instrument after finishing the above inspections.
If it does not work correctly, contact RIGOL for our service.
The settings are correct but no waveform is generated:
(1) Check if the BNC cable is correctly connected to the channel output
terminal ([Output1] or [Output2]).
(2) Check if the BNC cable can work correctly.
(3) Check the Output1 or Output2 button, if it is turned on.
(4) Set PowerOn as “Last” and then restart the instrument after finishing
the above inspections.
(5) If it does not work correctly, contact RIGOL for our service.
3.
The USB storage device cannot be recognized:
(1) Check if the USB storage device can work normally.
(2) Make sure the USB storage device is USB flash storage device. The
generator doesn’t support hard drive-based USB storage device.
(3) Restart the instrument, reinsert the U-disk and check it.
(4) If the USB storage device still can not be recognized, please contact
RIGOL.
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Chapter 13 Specifications
Chapter 13 Specifications
All the specifications can be guaranteed if the following two conditions are met
unless where noted.
 The generator is within the calibration period and has performed
self-calibration.
 The generator has been working continuously for at least 30 minutes under
the specified temperature (18℃ ~ 28℃).
All the specifications are guaranteed unless those marked with “typical”.
Model
DG4162
DG4102
DG4062
Channel
2
2
2
Maximum Frequency
160MHz
100MHz
60 MHz
Sample Rate
500MSa/s
Waveforms
Standard waveforms
Sine, Square, Ramp, Pulse, Noise, Harmonics
Arbitrary Waveforms
150 kinds, including Sinc, Exponential Rise, Exponential Fall, ECG,
Gauss, HaverSine, Lorentz, Dual-Tone, DC, etc.
Frequency Characteristics
Sine
1μHz to 160MHz
1μHz to 100MHz
1μHz to 60MHz
Square
1μHz to 50MHz
1μHz to 40MHz
1μHz to 25MHz
Ramp
1μHz to 4MHz
1μHz to 3MHz
1μHz to 1MHz
Pulse
1μHz to 40MHz
1μHz to 25MHz
1μHz to 15MHz
Harmonic
1μHz to 80MHz
1μHz to 50MHz
1μHz to 30MHz
Noise (-3dB)
120MHz bandwidth
80MHz bandwidth
60MHz bandwidth
Arbitrary Waveform
1μHz to 40MHz
1μHz to 25MHz
1μHz to 15MHz
Resolution
1μHz
Accuracy
±2ppm, 18℃ to 28℃
Sine Wave Spectrum Purity
Harmonic Distortion
Typical (0dBm)
DC-1MHz: <-60dBc
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Chapter 13 Specifications
1MHz-10MHz: <-55dBc
10MHz-100MHz: <-50dBc
100MHz-160MHz: <-40dBc
Total Harmonic Distortion
<0.1% (10Hz-20kHz,0dBm)
Spurious (non-harmonic)
Typical (0dBm)
Phase Noise
≤10MHz
<-65dBc
>10MHz
<-65dBc+6dB/octave
Typical (0dBm, 10kHz deviation)
10MHz: ≤-115dBc/Hz
Signal Characteristics
Square
Rise/Fall Time
Overshoot
Typical (1Vpp)
Typical (1Vpp)
Typical (1Vpp)
<8ns
<10ns
<12ns
Typical (100KHz, 1Vpp)
<3%
Duty Cycle
≤10MHz:
20.0% to 80.0%
10MHz-40MHz:
40.0% to 60.0%
>40MHz:
50.0% (fixed)
Non-symmetry
1% of period +5ns
Jitter (rms)
Typical (1MHz, 1Vpp, 50Ω)
≤5MHz
2ppm+500ps
>5MHz
500ps
Ramp
Linearity
≤1% of peak output (Typical, 1kHz, 1VPP, 100% Symmetry)
Symmetry
0% to 100%
Pulse
Period
25ns to 1000000s
40ns to 1000000s
66.7ns to
1000000s
Pulse Width
≥10ns
≥12ns
≥18ns
Leading/
≥5ns
≥7ns
≥11ns
Trailing Edge Time
Overshoot
Typical (1Vpp)
<3%
Jitter (rms)
Typical (1Vpp)
≤5MHz
13-2
2ppm+500ps
DG4000 Series User’s Guide
RIGOL
Chapter 13 Specifications
>5MHz
500ps
Arb
Waveform Length
16k points
Vertical Resolution
14bits
Sample Rate
500MSa/s
Minimum Rise/Fall Time
Typical (1Vpp)
<5ns
Jitter (rms)
Typical (1Vpp)
≤5MHz
2ppm+500ps
>5MHz
500ps
Interpolation Method
Off, Linear
Edit Method
Edit Points, Edit Block
Harmonic
Harmonic Order
≤16
Harmonic Type
Even, Odd, All, User
Harmonic Amplitude
can be set for all harmonics
Harmonic Phase
can be set for all harmonics
Output Characteristics
Amplitude (into 50 Ω)
Range
≤20MHz: 1mVpp
≤20MHz: 1mVpp to
≤20MHz: 1mVpp to
to 10Vpp
10Vpp
10Vpp
≤70MHz: 1mVpp
≤70MHz: 1mVpp to
≤60MHz: 1mVpp to
5Vpp
5Vpp
to 5Vpp
≤120MHz: 1mVpp
≤100MHz: 1mVpp to
to 2.5Vpp
2.5Vpp
≤160MHz: 1mVpp
to 1Vpp
Accuracy
Typical (1kHz Sine, 0V Offset, >10mVpp, Auto)
± 1% of setting ± 2mVpp
Flatness
Typical
Typical
Typical
(relative to 1kHz Sine wave,
≤10MHz: ±0.1dB
≤10MHz: ±0.1dB
≤10MHz: ±0.1dB
500mVpp, 50Ω)
≤60MHz: ±0.2dB
≤60MHz: ±0.2dB
≤60MHz: ±0.2dB
≤100MHz: ±0.4dB
≤100MHz: ±0.4dB
≤160MHz: ±0.8dB
Units
Vpp, Vrms, dBm
Resolution
1mV or 3bits
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Chapter 13 Specifications
Offset (into 50 Ω)
Range
±5Vpk ac + dc
Accuracy
±(1% of setting + 5mV + 0.5% of amplitude)
Waveform Output
Impedance
50Ω (Typical)
Protection
Short-circuit protection, automatically disable waveform output
when overload occurs
Modulation Characteristics
Modulation Type
AM, FM, PM, ASK, FSK, PSK, BPSK, QPSK, 3FSK, 4FSK, OSK, PWM
AM
Carrier Waveform
Sine, Square, Ramp, Arb (except DC)
Source
Internal/External
Modulating Waveform
Sine, Square, Ramp, Noise, Arb
Depth
0% to 120%
Modulating Frequency
2mHz to 50KHz
FM
Carrier Waveform
Sine, Square, Ramp, Arb (except DC)
Source
Internal/External
Modulating Waveform
Sine, Square, Ramp, Noise, Arb
Modulating Frequency
2mHz to 50KHz
PM
Carrier Waveform
Sine, Square, Ramp, Arb (except DC)
Source
Internal/External
Modulating Waveform
Sine, Square, Ramp, Noise, Arb
Phase Deviation
0° to 360°
Modulating Frequency
2mHz to 50KHz
ASK
Carrier Waveform
Sine, Square, Ramp, Arb (except DC)
Source
Internal/External
Modulating Waveform
Square with 50% duty cycle
Key Frequency
2mHz to 1MHz
FSK
Carrier Waveform
Sine, Square, Ramp, Arb (except DC)
Source
Internal/External
Modulating Waveform
Square with 50% duty cycle
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Chapter 13 Specifications
Key Frequency
2mHz to 1MHz
3FSK
Carrier Waveform
Sine, Square, Ramp, Arb (except DC)
Source
Internal
Modulating Waveform
Square with 50% duty cycle
Key Frequency
2mHz to 1MHz
4FSK
Carrier Waveform
Sine, Square, Ramp, Arb (except DC)
Source
Internal
Modulating Waveform
Square with 50% duty cycle
Key Frequency
2mHz to 1MHz
PSK
Carrier Waveform
Sine, Square, Ramp, Arb (except DC)
Source
Internal/External
Modulating Waveform
Square with 50% duty cycle
Key Frequency
2mHz to 1MHz
BPSK
Carrier Waveform
Sine, Square, Ramp, Arb (except DC)
Source
Internal
Modulating Waveform
Sine, Square, Ramp, Noise, Arb (2mHz to 50kHz)
Key Frequency
2mHz to 1MHz
QPSK
Carrier Waveform
Sine, Square, Ramp, Arb (except DC)
Source
Internal
Modulating Waveform
Sine, Square, Ramp, Noise, Arb (2mHz to 50kHz)
Key Frequency
2mHz to 1MHz
OSK
Carrier Waveform
Sine
Source
Internal/External
Oscillation Time
8ns to 499.75μs
Key Frequency
2mHz to 1MHz
PWM
Carrier Waveform
Pulse
Source
Internal/External
Modulating Waveforms
Sine, Square, Ramp, Noise, Arb
Width Deviation
0% to 100% of Pulse Width
DG4000 Series User’s Guide
13-5
RIGOL
Modulating Frequency
Chapter 13 Specifications
2mHz to 50KHz
[Mod/FSK/Trig] Input
Maximum Input Range
±2.5V
Input Bandwidth
5MHz
Input Impedance
1kΩ
Burst Characteristics
Carrier Waveform
Sine, Square, Ramp, Pulse, Noise, Arb (except DC)
Carrier Frequency
2mHz to 100MHz
Burst Count
1 to 1 000 000 or Infinite
Start/Stop Phase
0° to 360°
Internal Period
2μs to 500s
Gated Source
External Trigger
Trigger Source
Internal, External or Manual
Trigger Delay
0ns to 85s
2mHz to 100MHz
2mHz to 60MHz
Sweep Characteristics
Carrier Waveform
Sine, Square, Ramp, Arb (except DC)
Type
Linear, Log or Step
Direction
Up or Down
Start/Stop Frequency
1μHz to 160MHz
Sweep Time
1ms to 300s
Hold/Return Time
0ms to 300s
Trigger Source
Internal, External or Manual
Mark
Falling edge of Sync signal (programmable)
1μHz to 100MHz
1μHz to 60MHz
Counter Specifications
Function
Frequency, Period, Positive/Negative Pulse Width, Duty Cycle
Frequency Resolution
7 digits/second (Gate Time =1s)
Frequency Range
1μHz to 200MHz
Period Measurement
Measurement Range
5ns to 16 days
Voltage Range and Sensitivity (Not modulation signal)
DC Coupling
AC Coupling
13-6
DC Offset Range
±1.5VDC
1μHz to 100MHz
50mVRMS to ±2.5Vac+dc
Input
100MHz to 200MHz
100mVRMS to ±2.5Vac+dc
Attenuation:
1μHz to 100MHz
50mVRMS to ±2.5Vpp
100MHz to 200MHz
100mVRMS to ±2.5Vpp
“closed”
DG4000 Series User’s Guide
RIGOL
Chapter 13 Specifications
Pulse Width and Duty Cycle Measurement
Frequency/Amplitude
1μHz to 25MHz
Range
Pulse Width
Duty Cycle
50mVRMS to
±2.5Vac+dc
DC Coupling
Minimum
≥20ns
Input Attenuation:
Resolution
2ns
“closed”
Range (Display)
0% to 100%
Input Characteristics
±7Vac+dc
Breakdown
Input Range
Voltage
(Attenuation: closed)
±70Vac+dc
(Attenuation: open)
5Vrms
Input Adjustment
Open: “×10”; Closed: “×1”
Impedance
50Ω
1MΩ
Coupling
AC
DC
Trigger Level
Range
Gate Time
Impedance=50Ω
Attenuation
HF Reject
Input Trigger
Impedance=1MΩ
ON: input bandwidth=250KHz;
OFF: input bandwidth=225MHz
-2.5V to +2.5V
Trigger Sensitivity
0% (140mV hysteresis voltage) to 100%
Range
(2mV hysteresis voltage)
GateTime1
1ms
GateTime2
10ms
GateTime3
100ms
GateTime4
1s
GateTime5
10s
GateTime6
>10s
Programming Time
Configuration Times (Typical)
Function Change
USB2.0
LAN
500ms
510ms
DG4000 Series User’s Guide
13-7
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Chapter 13 Specifications
Frequency Change
50ms
50ms
Amplitude Change
300ms
310ms
Select User Arb
500ms
510ms
Trigger Characteristics
Trigger Input
Level
TTL-compatible
Slope
Rising or falling (selectable)
Pulse Width
> 50ns
Latency
Sweep: <100ns (typical)
Burst: <300ns (typical)
Trigger Output
Level
TTL-compatible
Pulse Width
> 60ns (typical)
Maximum Rate
1MHz
Clock Reference
Phase Offset
Range
0° to 360°
Resolution
0.03°
External Reference Input
Lock Range
10MHz ± 50Hz
Level
250mVpp to 5Vpp
Lock Time
< 2s
Impedance (Typical)
1kΩ, AC coupling
Internal Reference Output
Frequency
10MHz ± 50Hz
Level
3.3Vpp
Impedance (Typical)
50Ω, AC coupling
Sync Output
Level
TTL-compatible
Impedance
50 Ω, nominal value
General Specifications
Power
13-8
DG4000 Series User’s Guide
RIGOL
Chapter 13 Specifications
Power Voltage
100V to 240V (45Hz to 440Hz)
Power Consumption
Less than 50W
Fuse
250V, T2A
Display
Type
7-inch TFT LCD
Resolution
800 Horizontal × RGB × 480 Vertical Resolution
Color
16M color
Environment
Temperature Range
Operating: 10℃ to 40℃
Non-Operating: -20℃ to 60℃
Cooling Method
Cooling by fans compulsively
Humidity Range
Less than 35℃: ≤90% Relative Humidity (RH)
35℃ to 40℃: ≤60% Relative Humidity (RH)
Altitude
Operating: Less than 3000 meters
Non-Operating: Less than 15000 meters
Mechanical
Dimensions (W×H×D)
313 mm ×160.7 mm×116.7mm
Weight
without package: 3.2 kg
with package: 4.5 kg
Interfaces
USB Host, USB Device, LAN
IP Protection
IP2X
Calibration Interval
Recommend 1 year for standard interval
DG4000 Series User’s Guide
13-9
RIGOL
Chapter 14 Appendix
Chapter 14 Appendix
Appendix A: Options and Accessories
Model
Standard
Accessories
Options
Description
Order Number
DG4162 (160 MHz, dual-channel)
DG4162
DG4102 (100 MHz, dual-channel)
DG4102
DG4062 (60 MHz, dual-channel)
DG4062
Power Cord
-
USB Cable
CB-USB
BNC Cable (1 meter)
CB-BNC-BNC-1
Quick Guide
-
Resource CD (including User’s Guide and
Application Software)
-
Warranty Card
-
40dB Attenuator
ATT-40dB
Rack Mount Kit
RMK-DG-4
NOTE: All the options or accessories can be ordered from you local RIGOL Office.
DG4000 Series User’s Guide
14-1
RIGOL
Chapter 14 Appendix
Appendix B: Power Amplifier Specifications
Unless otherwise noted, all the specifications can be guaranteed under the
following two conditions.
 The instrument has been working continuously for at least 30 minutes under
the specified operation temperature.
 All the specifications are guaranteed except those marked with “Typical”.
Signal Input
Input Impedance
50kΩ
Built-in Bias Voltage
(output equivalent)
±12V
External Input
±10Vmax (gain: X1)
±1.25Vmax (gain: X10)
Power Amplifier Specifications
Running Mode
Constant voltage
Gain
Switch between 10V/1V and 10V/10V (DC gain error
<5%)
Polarity Switch
Normal/Invert
Effective Value of Sine
Output Power
(RL=7.5Ω)
10W (Typical, Sine input, 100kHz, X10)
Output Voltage
12.5Vpeak (Sine input, 100kHz)
Output Current
1.65Apeak (Sine input, 100kHz)
Output Impedance
<2Ω
Full Power Bandwidth
DC to 1MHz[1]
Output Slew Rate
≥80V/µs (Typical)[2]
Overshoot
<7%
Bias Voltage Specification
Bias Voltage Gain
Error
5%±100mV
Others
Power
DC 12V±5%, 4Apeak
Output Protection
Output overcurrent protection, internal temperature
abnormity protection
14-2
DG4000 Series User’s Guide
RIGOL
Chapter 14 Appendix
Operating
Temperature
0 ℃ to +35 ℃[3]
Dimensions (W×H×D)
142.2mm×48.1mm×215.4mm
Net Weight
850g±20g
Note
[1]
: Full power bandwidth refers to the maximum frequency when the power amplifier can
generate the AC output with the maximum possible amplitude and without distortion.
Full power bandwidth
FPB =
SR
2πVmax
SR: Slew Rate (output slew rate)
Vmax: the maximum output amplitude without distortion of the power amplifier
Note[2]: Definition of Output Slew Rate: input a large step-function signal into the power
amplifier and the output slope of the signal would be saturated to a fixed constant at a
certain position. This constant is called the Slew Rate of the power amplifier.
Note[3]: The specifications above are obtained under 25 ℃. The range of the environment
temperature of PA1011 during operation is from 0 ℃ to +35 ℃. You are recommended
to reduce the output power and working power of PA1011 when the environment
temperature exceeds 35 ℃.
DG4000 Series User’s Guide
14-3
RIGOL
Chapter 14 Appendix
Appendix C: Warranty
RIGOL warrants that the mainframe and accessories of its product will be free from
defects in materials and workmanship within the warranty period.
If the product is proven to be defective within the warranty period, RIGOL
guarantees free replacement or repair of the product. For detailed warranty rules,
please refer to the RIGOL official website or the instruction in the warranty card. To
get repair service or a complete version of the warranty instruction, please contact
RIGOL maintenance center and local office.
RIGOL does not provide any other explicit or implicit warranty items including but
not limited to any implicit warranty items about tradability and applicability for
special purpose of the product, except the ones being provided by this summary and
other applicable warranty cards. RIGOL will shoulder no responsibility for indirect,
special or consequential damage.
14-4
DG4000 Series User’s Guide
Index
RIGOL
Index
3FSK ....................................... 5-25
4FSK ....................................... 5-27
AC Power Input ........................ 1-13
align phases ............................... 2-9
AM ............................................ 5-2
amplitude................................... 2-5
amplitude coupling.................. 10-26
ASK ......................................... 5-11
AutoIP ................................... 10-13
BPSK ....................................... 5-20
built-in waveform ........................ 3-4
Burst ......................................... 7-2
Burst delay ................................. 7-7
Burst period ............................... 7-6
Burst phase ................................ 7-6
Burst Polarity .............................. 7-6
Center Frequency ....................... 6-3
Channel Copy ......................... 10-29
clock source ........................... 10-20
counter ...................................... 8-1
coupling ................................. 10-26
Coupling Base ........................ 10-26
DC offset ................................... 2-7
Default Gateway ..................... 10-15
Delay ....................................... 2-15
DHCP..................................... 10-13
DNS ...................................... 10-15
Duty Cycle ............................... 2-11
Duty cycle deviation .................. 5-34
Edit Block................................. 3-11
Edit Points................................ 3-11
end frequency ............................ 6-2
End Hold .................................. 6-10
External Power Amplifier ........... 10-7
DG4000 Series User’s Guide
FM ............................................ 5-5
Frequency ................................. 2-4
frequency coupling .................. 10-26
Frequency deviation ................... 5-7
frequency span .......................... 6-3
Frequency Sweep ....................... 6-2
front panel................................. 1-6
FSK .......................................... 5-14
Gated Burst ............................... 7-4
harmonic ................................... 4-1
Harmonic Amplitude ................... 4-4
Harmonic Order ......................... 4-3
harmonic type ............................ 4-3
Infinite Burst ............................. 7-3
Leading edge ............................ 2-14
Linear Interpolation ................... 3-11
Linear Sweep ............................. 6-4
Log Sweep................................. 6-5
MAC Address .......................... 10-13
ManualIP ................................ 10-14
Mark Frequency ......................... 6-8
Modulating Polarity .................... 5-13
Modulation depth ....................... 5-4
N Cycle ..................................... 7-2
Network Status ....................... 10-12
Noise Scale ............................... 10-6
Noise Setting ............................ 10-6
noise superposition.................... 10-6
Oscillate period ......................... 5-31
OSK ......................................... 5-29
Output Polarity .......................... 10-5
Paste ........................................ 9-9
phase coupling ........................ 10-26
Phase deviation ......................... 5-10
1
RIGOL
PictBridge ............................... 10-23
PM ............................................ 5-8
Point By Point Output .................. 3-3
Power Key ................................. 1-6
PSK ......................................... 5-17
Pulse Width.............................. 2-13
PWM ....................................... 5-32
QPSK....................................... 5-23
rear panel ................................ 1-13
remote control ......................... 11-2
Resistance setting..................... 10-5
Restore Delay........................... 2-15
Return Time ............................... 6-8
Start Frequency .......................... 6-2
Start Hold .................................. 6-9
start phase ................................ 2-8
Step Sweep................................ 6-6
Subnet Mask ........................... 10-15
Supporting Legs ......................... 1-3
2
Index
Sweep Time ............................... 6-7
sweep trigger source ................. 6-10
Symmetry................................. 2-12
Sync Output ............................. 10-3
Sync Polarity ............................. 10-4
Test/Cal.................................. 10-25
To Create New Arbitrary Waveform3-10
To Edit Arbitrary Waveform ........ 3-17
To Recall File .............................. 9-8
To Save File ................................ 9-6
To Set Harmonic Phase ................ 4-5
Trailing edge ............................. 2-14
USB Device............................... 1-14
USB Host.................................... 1-6
user interface ........................... 1-18
User-defined Waveform Key ..... 10-30
VISA Descriptor ...................... 10-13
Volatile Waveform ....................... 3-9
Width deviation......................... 5-34
DG4000 Series User’s Guide
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