Agilent Technologies 8757D Technical data

Operating Manual
Agilent Technologies
8757D
Scalar Network Analyzer
Manufacturing Part Number: 08757-90109
Printed in USA
Print Date: March 2005
Supersedes: November 2000
© Agilent Technologies, Inc. 1993, 2000, 2005
Hewlett-Packard to Agilent Technologies Transition
This manual may contain references to HP or Hewlett-Packard. Please note that
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model number HP 8757D is now model number Agilent 8757D.
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11/16/04
Contents
Table of Contents
1. General Information
Safety Considerations . . . . . . . . . . . . . . . . . . . . .
The HP 8757D Analyzer . . . . . . . . . . . . . . . . . . . .
CRT/LCD Attributes . . . . . . . . . . . . . . . . . . . .
Displays . . . . . . . . . . . . . . . . . . . . . . . . . .
Peripherals . . . . . . . . . . . . . . . . . . . . . . . . .
Calibration Data and Instrument States . . . . . . . . . . . .
Measurement Channels . . . . . . . . . . . . . . . . . . .
Local and Remote Operation . . . . . . . . . . . . . . . . .
Options Available . . . . . . . . . . . . . . . . . . . . . .
Specications, General Requirements, and Operating Characteristics
Manufacturer's Declarations . . . . . . . . . . . . . . . . . .
Accessories and Supplies . . . . . . . . . . . . . . . . . . . .
2. Installation
Introduction . . . . . . . . . . . . . . . .
Initial Inspection . . . . . . . . . . . . . .
Operating Environment . . . . . . . . . . .
Electrostatic Discharge . . . . . . . . . .
Power Requirements . . . . . . . . . . . . .
Checking the Line Voltage and Fuse . . . . .
Checking the Power Cable . . . . . . . . .
Equipment Required But Not Supplied . . . .
AC Detection . . . . . . . . . . . . . . .
Firmware Compatibility . . . . . . . . . .
Rack Mounting . . . . . . . . . . . . . . .
Connecting the Analyzer to a Source . . . . .
External Modulation . . . . . . . . . . .
Other Congurations . . . . . . . . . . .
Connecting the Analyzer to an External Monitor
CRT . . . . . . . . . . . . . . . . . .
LCD . . . . . . . . . . . . . . . . . .
Setting the HP-IB Address . . . . . . . . . .
HP-IB Connectors and Cables . . . . . . . .
Storing and Shipping . . . . . . . . . . . .
Environment . . . . . . . . . . . . . . .
Packing the Instrument . . . . . . . . . .
Returning an Instrument for Service . . . . .
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1-2
1-6
1-6
1-6
1-6
1-6
1-6
1-6
1-7
1-9
1-17
1-20
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2-1
2-2
2-3
2-4
2-5
2-5
2-6
2-7
2-7
2-7
2-8
2-10
2-10
2-10
2-16
2-16
2-16
2-16
2-18
2-20
2-20
2-20
2-20
Contents-1
3. Operation
HP/Agilent 8757D Firmware Capability . . . . . . . . . . . . . . . .
Local Operation
HP 8757D User's Guide (wire-o book) . . . .
1. Operating . . . . . . . . . . . . . .
2. Transmission Measurements . . . . . .
3. Reection Measurements . . . . . . .
4. Limit Lines . . . . . . . . . . . . .
5. Alternate Sweep . . . . . . . . . . .
6. External Disk Save/Recall . . . . . . .
7. Special Functions . . . . . . . . . . .
A. AC versus DC Detection . . . . . . .
Index . . . . . . . . . . . . . . . . .
HP 8757D Operating Reference (wire-o book)
1. Front-Panel Features . . . . . . . . .
2. CHANNEL . . . . . . . . . . . . .
3. ENTRY Area . . . . . . . . . . . .
4. FUNCTION Keys . . . . . . . . . .
5. INSTRUMENT STATE . . . . . . . .
6. Rear Panel Features . . . . . . . . .
A. Operator's Check . . . . . . . . . .
B. Softkey Menu Structure Maps . . . . .
C. Performing an External Calibration . . .
D. Measurement Applications . . . . . .
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3-1
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1-1
2-1
3-1
4-1
5-1
6-1
A-1
B-1
C-1
D-1
HP-IB Programming Notes . . . . . . . . . . . .
HP 8757D Quick Reference Guide . . . . . . . .
HP 8757D with HP 90000 Series 200/300 (BASIC)
HP 8757D with HP Vectra (QuickBasic 4.5) . . .
HP 8757D with HP Vectra (QuickC 2.5) . . . . .
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1
1
1
1
1
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1
2
2
2
3
3
3
4
4
5
5
5
5
5
6
6
7
Remote Operation
In Case of Diculty
Contents . . . . . . . . . . . . . . . . .
Manual Operation . . . . . . . . . . . .
Line Power . . . . . . . . . . . . . . .
Error Codes . . . . . . . . . . . . . .
System Operation . . . . . . . . . . . . .
General . . . . . . . . . . . . . . . .
HP-IB Connections and Addresses . . . .
Other Cable Connections . . . . . . . .
Remote Operation . . . . . . . . . . .
Inaccurate Operation . . . . . . . . . . .
Calibration . . . . . . . . . . . . . . .
Modulation Characteristics . . . . . . . .
Sweep Speed . . . . . . . . . . . . . .
Calibrator Option 002 Only . . . . . . .
Miscellaneous Problems . . . . . . . . . .
Alternate Sweep . . . . . . . . . . . .
Number of Trace Points and Trace Memory
Contents-2
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3
10
17
19
21
23
25
26
27
Autozero of DC Detectors . . . . . . .
Save/Recall Registers . . . . . . . . .
System Interface On/O . . . . . . . .
Measurement-Memory-Memory . . . . .
Cursor Search . . . . . . . . . . . .
On-Site Service . . . . . . . . . . . . .
Main Error Codes . . . . . . . . . . .
Power Calibration Error Messages . . . .
Detector Error Messages (HP 85037A/B only
On-Site Service - Calibration . . . . . .
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7
7
8
9
9
9
10
13
14
14
Connector Care
Principles of Microwave Connector Care|Quick Reference Card . . . . . .
Glossary
Contents-3
1
General Information
This chapter provides information on the following topics:
general safety considerations
serial numbers
analyzer description
power calibrator option
available options
specications
operating characteristics
manufacturer's radio interference declaration
manufacturer's sound emission declaration
manufacturer's ISO declaration
ordering accessories and supplies
General Information 1-1
General Safety Considerations
Warning
No operator serviceable parts inside. Refer servicing to qualified personel. To
prevent electric shock, do not remove covers.
Warning
To prevent electrical shock, disconnect the Agilent Technologies 8757D from
mains before cleaning. Use a dry cloth or one slightly dampened with water to
clean the external case parts. Do not attempt to clean internally.
Warning
If this product is not used as specified, the protection provided by the
equipment could be impaired. This product must be used in a normal condition
(in which all means for protection are intact) only.
Caution
Always use the three-prong AC power cord supplied with this product. Failure
to ensure adequate earth grounding by not using this cord may cause product
damage.
Safety Symbols
General
This product was designed and manufactured in accordance with international safety
standards. Before you operate this analyzer, review the product and related documentation.
Become familiar with safety markings and instructions.
Instruction manual symbol: the product will be marked with this symbol
when it is necessary for the user to refer to the instruction manual (refer to
Table of Contents).
Indicates hazardous voltages.
L
MK
Indicates earth (ground) terminal.
The CE mark is the registered trademark of the European Community.
The CSA mark is a registered trademark of the Canadian Standards
Association.
ISM1-A
This is a symbol of an Industrial Scientic and Medical Group 1, Class A
product (CISPR 11, Clause4).
The \ON" symbol is used to mark the position of the analyzer's line power
switch.
The \STANDBY" symbol is used to mark the position of the analyzer's power
switch.
1-2 General Information
The AC symbol is used to indicate the required nature of the line module
input power.
The C-Tick mark is a registered trademark of the Australian Spectrum
Management Agency.
Warning
The WARNING sign denotes a hazard. It calls attention to a procedure, which,
if not correctly performed or adhered to, could result in personal injury. Do
not proceed beyond a WARNING sign until the indicated conditions are fully
understood and met.
Caution
A Caution note denotes a hazard. It calls attention to a procedure, that, if not
correctly performed or adhered to, could result in damage to or destruction
of the product. Do not proceed beyond a Caution note until the indicated
conditions are fully understood and met.
Safety Earth Ground
This is a Safety Class I product (provided with a protective earthing terminal). An
uninterruptible safety earth ground must be provided from the main power source to the
product input wiring terminals, power, cord, or supplied power cord set. Whenever it is likely
that the protection has been impaired, the product must be made inoperative and secured
against any unintended operation.
Before Applying Power
Verify that the product is congured to match the available main power source. Refer to the
input power conguration instructions provided in this manual.
If this product is to be used with an autotransformer make sure the common terminal is
connected to the neutral (grounded) side of the main supply.
Servicing
Any servicing, adjustment, maintenance, or repair of this product must be performed only
by qualied personnel. Capacitors inside this product may still be charged even when
disconnected from their power source.
To avoid a re hazard, replacement fuses must have the required current rating and be of the
type specied in this manual.
General Information 1-3
Preface
This manual applies directly to all HP/Agilent 8757D network analyzers. See the serial
number plate (Figure 1-1) attached to the analyzer back panel. The rst four digits followed
by a letter are the serial number prex. The last ve digits are the sequential sux, which are
unique to each instrument.
Figure 1-1. Typical Serial Number Label
1-4 General Information
Figure 1-2. HP 8757D Scalar Network Analyzer and Accessories Supplied
General Information 1-5
The HP 8757D Analyzer
The HP 8757D (Figure 1-2) is a microprocessor-based receiver capable of making scalar
(magnitude only) reection and transmission measurements. The external detectors used
determine the frequency range. The raster display provides high resolution for viewing
measurements.
The original HP 8757D incorporated a cathode ray tube (CRT) based display.
Note
The current design incorporates a liquid crystal display (LCD) based display.
In this manual, references to either CRT or LCD apply to both display designs
unless noted otherwise.
CRT/LCD Attributes
The CRT/LCD displays attributes (such as the grid, measurement traces for each channel,
and labels) in factory-dened colors. You can adjust the hue, saturation and intensity of each
of these attributes.
Displays
The analyzer can simultaneously drive both the internal display and one external monitor
(color or monochrome, if compatible with the analyzer's scan rate and video levels).
Peripherals
You can use the analyzer to control external printers, plotters, and sources through the system
interface. A printer and plotter buer speeds measurements by returning control to the
analyzer while data prints.
Calibration Data and Instrument States
You can store and recall instrument states and calibration data to and from external disks.
Measurement Channels
Four independent but identical measurement channels allow simultaneous measurements and
viewing of measurement parameters. The detector inputs (A, B, C, and R) accept AC or DC
detected signals from detectors or bridges.
Local and Remote Operation
You can operate the analyzer either locally, using the front panel controls and menu
selections, or remotely over the HP-IB. You can also generate on-screen graphics (see \Remote
Operation").
1-6 General Information
Options Available
Option 001 adds a fourth detector input (C).
Option 002 adds the power calibrator.
Option 001 and 002 adds both the fourth detector input and the power calibrator. (See
the front panel options table on the following page and the descriptions below it for more
detailed information on these options.)
Figure 1-3.
Option 001, Fourth Detector Input
This option supplies four front-panel detector inputs (A, B, C,
and R).
Option 002, Internal Power Calibrator
This option supplies three front panel detector inputs (A,B,and R) and adds an internal power
calibrator. The power can be precisely controlled in 1 dB increments from +20 to 050 dBm.
Option 908, Rack Mount Without Handles
This option supplies a rack mount kit containing a pair of anges and the necessary hardware
to mount the analyzer (with handles detached ) in an equipment rack that has 482.6 mm (19
in) horizontal spacing. See chapter 2 for installation instructions.
Option 913, Rack Mount With Handles
This option supplies a rack mount kit containing a pair of anges and the necessary hardware
to mount the analyzer (with handles attached ) in an equipment rack that has 482.6 mm (19
in) horizontal spacing. See chapter 2 for installation instructions.
General Information 1-7
Option W30, Extended Service
This option (identied on the serial number tag) adds two additional years of return-to-HP
hardware support following the rst year of warranty. You can order this option only at
time-of-purchase.
Option W32, Three-Year Calibration
This option (identied on the serial number tag) provides a three-year return-to-HP
calibration service. You can order this option only at time-of-purchase.
Option 1BN, MIL-STD 45662A Calibration
This option provides an instrument calibration and a certicate of calibration in full
compliance with MIL-STD 45662A.
Option 1BP, MIL-STD 45662A Calibration with Data
This option provides an instrument calibration, a certicate of calibration, and test data in
full compliance with MIL-STD 45662A.
1-8 General Information
Specifications, General Requirements, and Operating
Characteristics
Specifications
Specications (listed in Table 1-1) are the performance standards or limits against which
the instrument is tested. Specications apply from +20 C to +30C (unless otherwise
noted), and only after the instrument's temperature stabilizes after one hour of continuous
operation. Unless otherwise noted, corrected limits are given when specications are subject
to optimization with error-correction routines.
General Requirements
General requirements (listed in Table 1-2) dene specications required of the source for
proper analyzer operation.
Operating Characteristics
Operating characteristics (listed in Table 1-3) are non-warranted parameters. They are not
specications, but are typical performance parameters that most units meet from +20C to
+30C.
General Information 1-9
Table 1-1. HP 8757D Specifications1 (1 of 2)
Function
: Four indep endent display channels pro cess signals from the HP 85025, 85026, 11664, or 85037 detectors and the
HP 85020 or 85027 bridges. The analyzer displays the data logarithmically, in single input or ratio mode, with resp ect to
frequency, on the internal CRT/LCD. Three detector inputs (A, B, and R) accept AC or DC detected signals from detectors
or bridges.
Option 001 has four detector inputs (A, B, C, and R).
Modulator Drive
: The analyzer modulator drive output provides the circuitry to drive the HP 8340 and 8341 synthesized
sweep ers and the HP 11665B modulator. You can turn modulator drive on and o via either the front panel or HP-IB. In the
OFF state, the modulator drive signal turns the HP 11665B fully on for minimum insertion loss. The 8360 and 8370
synthesized sweep ers have the capability of modulating signals, so an external modulator such as the 11665B is not necessary
when using the 8360/8370 series.
Marker Accuracy
: The marker frequency accuracy is 0.1 PPM of the marker frequency plus the source marker frequency
accuracy.
Frequency
Symmetry
:
27.778 kHz
:
50%
61%
612
Hz
Dynamic Range, Dynamic Accuracy, Absolute Power Accuracy
: These system specications are dep endent on the
detector used. The following examples show both the HP 85037A/B and the HP 11664A/E detectors. (For HP 85025 and
HP 85026 specications, refer to their manuals.)
Dynamic Range2
HP 85037A/B
AC Mode:
+20 to
DC Mode:
+20 to
055
050
HP 11664A/E
dBm
AC Mode:
dBm
HP 85037A/B
HP 11664A/E
1 All
specication apply at 25
2 Using
65 C,
unless otherwise noted.
an HP 85037A/B Detector.
1-10 General Information
+16 to
060
dBm
HP 8757D Specifications1 (2 of 2)
Power Calibrator (Option 002)
The internal power calibrator option (Option 002) provides a 50 MHz reference standard for characterizing the absolute
power accuracy and dynamic power accuracy of HP 85037 Series precision detectors.
Frequency
: 50 MHz
Output Power
60.1
MHz
(DC mode):
050
Range:
+20 to
Accuracy at 0 dBm:
60.05
dB
SWR:
1.05
typical
dBm
Modes of Operation
:
DC Mode (unmo dulated)
AC Mode:
Modulation Frequency:
On/O Ratio:
Symmetry:
Connector
: Type-N(f)
Accessories Included
:
Adapter:
1 All
60.012 kHz
40 dB typical
50 6 1% typical
27.778
specication apply at 25
Type-N(m) to 3.5 mm(f )
65 C,
unless otherwise noted.
General Information 1-11
Table 1-2. HP 8757D General Requirements
General requirements dene specications required of the source for proper analyzer operation.
Sweep Time: Minimum sweep time and maximum number of displayed CRT/LCD traces depend on the
horizontal resolution (number of points):
Number of
Points
101
201
401
801
1601
1 Input
40
40
40
80
160
Minimum Sweep Time (ms)1
2 Inputs
3 Inputs
40
40
72
144
288
40
52
104
208
NA
4 Inputs
40
68
136
272
NA
(for use with HP 85025, 85026, 11664, 85037 detectors and HP 85020 or
85027 bridges in AC mode):
Square-wave amplitude modulation.
Frequency: 27.778 kHz 620 Hz.
30 dB on/o ratio.
45% to 55% symmetry.
Modulation
Sweep Voltage (Sweep In): Horizontal sweep voltage (0 to 10 V) or a pulse signal (0 to
10 V) from an HP 83750 Series source provided to the analyzer's SWEEP IN 0|10V
rear-panel input. You can use other sweep voltages by using the analyzer's non-standard
sweep mode.
Marker and Marker Blanking (Poz Z Blank): Blanking and marker signals provided to
the analyzer's POS Z BLANK rear-panel input. HP 8350, HP 8340 and 8341, and HP
8360 Series sources provide ve available markers, but the HP 83750 Series source
provides ten available markers.
Voltage Levels (Typical)
Blanked
+5 V
Unblanked
0V
Marker
04 V
Active Marker 08 V
1 Log
magnitude format.
1-12 General Information
Table 1-3. Operating Characteristics1 (1 of 4)
Display
Display Modes:
All analyzer channels can display any detector input, or any ratio combination of
detector inputs. The CRT/LCD can display data in one of the following modes.
Log Magnitude:
dBm:
dB:
Single channel power measurement.
Relative power measurement (ratio or relative to trace memory).
SWR:
Relative measurements.
AUX:
The rear-panel BNC input ADC IN can be measured and displayed in volts
(010 to +10V). Typical maximum error is 60 mV.
Display
Mode
Scale
Resolution
Display
Range
Vertical
Resolution
dBm
dB (ratio)
Normalized Ratio
SWR
0.1 to 20 dB/div
0.1 to 20 dB/div
0.1 to 20 dB/div
0.02 to 10 units/div
080 to 0130 dBm2
0150 to +150 dBm4
0180 to +180 dB
1.0 to 37.0
AUX
0.025 to 5V/div
010 to +10V
0.003 dB3
0.006 dB3
0.01 dB
0.01 at 1
0.1 at 10
0.27 at 30
0.001 V
Color Settings:
Up to 8 operator-selected colors for CRT/LCD attributes (such as the grid,
measurement traces, and labels).
1 The
values in this table are
2 Maximum
3 0.01
not
specications, but typical, non-warranted performance parameters.
90 dB range pen trace.
dB for display cursor.
4 Maximum
180 dB range pen trace.
General Information 1-13
Table 1-3. Operating Characteristics1 (2 of 4)
Display(cont'd)
Horizontal Resolution:
Number of Traces
1
2
3, 4
Averaging :
Number of Points
101, 201, 401, 801, 1601
101, 201, 401, 801
101, 201, 401
2, 4, 8, 16, 32, 64, 128, or 256 successive traces.
Smoothing:
Provides a linear moving average of adjacent data points. The smoothing aperture denes
the trace width (number of data points) averaged, and ranges from 0.1% to 20% of the trace width.
Normalization:
Traces are stored and normalized with the highest resolution, independent of display
scale/division or oset.
Calibration data is interpolated when you decrease the frequency span with adaptive normalization
engaged.
Limit Lines:
Any limit combination of at or sloped lines, or single points (up to 12 segments) can be
displayed on channels 1 and 2. You can store limit lines in save/recall registers 1 through 4.
Graticules:
1 The
values in this table are
8 vertical x 10 horizontal divisions.
1 division 11 mm.
not
specications, but typical, non-warranted performance parameters.
1-14 General Information
Table 1-3. Operating Characteristics1 (3 of 4)
LCD/CRT and Graphics
CRT Scan Rate: Raster scan with 60 Hz vertical refresh rate, and 25.5
CRT Graphics Resolution: 1024 horizontal x 400 vertical pixels.
LCD Scan Rate: Raster scan with 59.83 Hz vertical refresh rate
LCD Graphics Resolution: 640 horizontal x 480 vertical pixels.
ADC IN: An auxiliary voltage input
kHz horizontal scan rate.
and 31.41 kHz horizontal scan rate.
Rear Panel Connectors
(010 to +10V) that can be displayed (in volts) on any channel.
Control 1 and 2:
Provide digital output signals (TTL open-collector) to drive peripheral equipment in
an HP-IB controlled system.
DAC Out:
Used in troubleshooting.
Modulator Drive:
Provides the drive for HP 8340/8341 synthesized sweepers and the HP 11665B
modulator. You can turn modulator drive on/o at the front panel or by HP-IB.
Pos Z Blank Input:
Blanked:
Unblanked:
Marker:
Active Marker:
Voltage Levels
+5 V
0V
04 V
08 V
Stop Sweep:
Used with HP 8350 sweep oscillators and HP 8340, 8341, or 8360 synthesized sweepers
(when controlled by the HP 8757 system interface) to stop the sweep at band crossings and at the end
of sweep.
Sweep In:
Accepts the horizontal sweep voltage (usually provided by the source).
CRT Video Output:
characteristics:
LCD Video Output:
Three BNC connectors used to drive external monitors with the following
75
input impedance.
R, G, B, with sync on green.
60 Hz verticle refresh rate.
25.5 kHz horizontal scan rate.
1 Vp-p (0.7 V = white; 0 V = black; 00.3 V = sync).
VGA compatible.
Internal Save/Recall Registers
General Capability: Separate front panel states may be saved in registers 1 through 9. If an
appropriate source is connected to the 8757D system interface, the front panel state of the source is
included in the saved state.
Memory Trace and Limit Lines: For channels 1 and 2, the states saved in registers 1 through 4 also
include the appropriate trace and limit line data. (Registers 5 through 9 only store front panel states.)
1 The
values in this table are
not
specications, but typical, non-warranted performance parameters.
General Information 1-15
Table 1-3. Operating Characteristics1 (4 of 4)
HP-IB
Interface: HP-IB operates according to IEEE 488-1978 and IEC-625 interface standards. Note that
the HP-IB interface does not support the IEEE 488.2 standard.
Interface Function Codes:
SH1, AH1, T6, TE0, L4, LE0, SR1, RL1, PP0, DC1, DT0, C0, E1.
Transfer Formats: You may transfer data either as ASCII characters, or as 16-bit integers (most
signicant byte rst). You may take readings at a single point, or transfer an entire trace at once.
Transfer Speed
(includes command to initiate output):
Format
# Points
ASCII
ASCII
Binary
Binary
401
1
401
1
ms
(typical)
500
10
30
7
Programmable Functions: Except for power on/o, all front panel functions are programmable. The
analyzer is compatible with all appropriate HP 8757A/C/E programming codes.
Interrupts:
The following conditions generate HP-IB service interrupts (SRQs):
Front panel key pressed
Illegal command
Instrument self-test error
Limit test fails
Operation (sweep or plot) completes
System Interface
The 8757 system interface is a dedicated HP-IB port used exclusively by the analyzer to control and
extract information from a swept source, digital plotter, printer, or other device.
General
Temperature Range:
Operating:
Storage:
0 to +55 C (+32 to 131F)
040 to +70 C (040 to +158 F)
Maximum relative humidity 80% for temperatures up to 31 C decreasing linearly to 50%
relative humidity at 40 C (unless specied otherwise).
Humidity:
Altitude:
3000 meters
Power Requirements:
Dimensions:
48 to 66 Hz, 100/120/220/240 V 610%, typically 155 VA.
178 x 425 x 445 mm (7.0 x 16.75 x 17.5 in).
Weight:
1 The
values in this table are
Net:
Shipping:
not
17 kg (38 lb)
25 kg (55 lb)
specications, but typical, non-warranted performance parameters.
1-16 General Information
Caution
This product is designed for use in INSTALLATION CATEGORY II AND
POLLUTION DEGREE 2, per IEC 61010-1 and 664 respecitively.
Manufacturer's Declarations
RADIO FREQUENCY INTERFERENCE
Note
This is to certify that this product meets the radio frequency interference
requirements of Directive FTZ 1046/1984. The German Bundespost has
been notied that this equipment was put into circulation and has been
granted the right to check the product type for compliance with these
requirements.
Note: If test and measurement equipment is operated with unshielded
cables and/or used for measurements on open set-ups, the user must
ensure that under these operating conditions, the radio frequency
interference limits are met at the border of his premises.
Model HP/Agilent 8757D
Note
Hiermit wird bescheinigt, dass dieses Gerat/System in Ubereinstimmung
mit den Bestimmungen von Postverfugung 1046/84 funkentstort ist.
Der Deutschen Bundespost wurde das Inverkehrbringen dieses
Gerates/Systems angezeight und die Berechtigung zur Uberprufung der
Serie auf Einhaltung der Bestimmungen eingeraumt.
Zustzinformation fur Mess-und Testgerate:
Werden Mess- und Testgerate mit ungeschirmten Kabeln und/oder in
oenen Messaufbauten verwendet, so ist vom Betreiber sicherzustellen,
dass die Funk-Entstorbestimmungen unter Betriebsbedingungen an seiner
Grundstucksgrenze eingehalten werden.
General Information 1-17
SOUND EMISSION
Note
This statement is provided to comply with the requirements of the
German Sound Emission Directive, from 18 January 1991.
This product has a sound pressure emission (at the operator position) <70
dB.
Sound Pressure Lp <70 dB (A).
At Operator Position.
Normal Operation.
According to ISO 7779 (Type Test).
Model HP/Agilent 8757D
Note
Herstellerbescheinigung
Diese Information steht im Zusammenhang mit den Anforderungen der
Maschinenlarminformationsverordnung vom 18 Januar 1991.
Schalldruckpegel Lp <70 dB(A).
Am Arbeitsplatz.
Normaler Betrieb.
Nach DIN 45635 T. 19 (Typprufung).
1-18 General Information
General Information 1-19
Accessories and Supplies
See Figure 2-2, \Example of a Static-Safe Workstation," and Table 1-4 for a list available
parts. To order a listed item, provide the part number and the quantity required; send the
order to the nearest Agilent Technologies sales and service oce, listed at the back of this
chapter.
1-20 General Information
Table 1-4. Replaceable Parts for the HP/Agilent 8757D
Description
HP/Agilent Part Number
Documentation
Manual Set (includes 08757-90109 and 08757-90110)
Operating Manual (includes programming guides)
Programming Guides:
HP 9000 Series 200/300
HP Vectra Microsoft Quick Basic 4.5
HP Vectra Microsoft C 2.5
Quick Reference Guide
Service Manual
Connector Care
08757-90107
08757-90109
08757-90116
08757-90117
08757-90118
08757-90130
08757-90110
08510-90064
Other
Touch-up Paint (cobblestone gray)
Adapter1 (type-N male to 3.5 mm female)
HP-IB Cable
6010-1140
08485-60005
10833A
Fuses
2110-0083
2110-0043
2.5 A 250 V NTD FE UL
1.5 A 250 V NTD FE UL
Rack Mount Handles
Front Handles (standard)
Rack Mounting without Handles (Option 908)
Rack Mounting with Handles (Option 913)
5062-3990
5062-3978
5062-4072
ESD Supplies
Conductive Table Mat with 15 ft Ground Wire
Wrist Strap to Table Mat Grounding Cord
Grounding Wrist Strap
ESD Heal Strap (reusable 6 to 12 months)
9300-0797
9300-0980
9300-1367
9300-1126
Cleaning Supplies
Compressed Air (235 ml)
Cleaning Swabs (100)
Isopropyl Alcohol (8 oz)
Isopropyl Alcohol (30 ml)
1
8500-6659
9301-1243
8500-0559
8500-5344
Part of Option 002.
General Information 1-21
Table 1-5. Agilent Technologies Sales and Service Offices
UNITED STATES
Instrument Support Center
Agilent Technologies
(800) 403-0801
EUROPEAN FIELD OPERATIONS
Headquarters
France
Germany
Agilent Technologies S.A.
Agilent Technologies France
Agilent Technologies GmbH
150, Route du Nant-d'Avril
1 Avenue Du Canada
Agilent Technologies Strasse
1217 Meyrin 2/Geneva
Zone D'Activite De Courtaboeuf
61352 Bad Homburg v.d.H
Switzerland
F-91947 Les Ulis Cedex
Germany
(41 22) 780.8111
France
(49 6172) 16-0
Great Britain
(33 1) 69 82 60 60
Agilent Technologies Ltd.
Eskdale Road, Winnersh Triangle
Wokingham, Berkshire RG41 5DZ
England
(44 118) 9696622
INTERCON FIELD OPERATIONS
Headquarters
Australia
Canada
Agilent Technologies Company
Agilent Technologies Australia Ltd.
Agilent Technologies (Canada) Ltd.
3495 Deer Creek Road
31-41 Joseph Street
17500 South Service Road
Palo Alto, California, USA
Blackburn, Victoria 3130
Trans-Canada Highway
94304-1316
(61 3) 895-2895
Kirkland, Quebec H9J 2X8
(415) 857-5027
Canada
(514) 697-4232
China
Japan
Singapore
China Agilent Technologies
Agilent Technologies Japan, Ltd.
Agilent Technologies Singap ore (Pte.) Ltd.
38 Bei San Huan X1 Road
9-1 Takakura-Cho, Hachio ji
150 Beach Road
Shuang Yu Shu
Tokyo 192, Japan
#29-00 Gateway West
Hai Dian District
(81 426) 60-2111
Singap ore 0718
Beijing, China
(86 1) 256-6888
Taiwan
Agilent Technologies Taiwan
8th Floor, H-P Building
337 Fu Hsing North Road
Taipei, Taiwan
(886 2) 712-0404
1-22 General Information
(65) 291-9088
2
Installation
This chapter provides information on the following topics:
initial inspection
instrument serial numbers
environmental requirements
electrostatic discharge hazards and precautions
line voltage selector switch
fuse inspection
power cable inspection
Introduction
This section provides installation instructions for your HP/Agilent 8757D scalar network
analyzer. This section also includes information about initial inspection, damage claims,
preparation for using the analyzer, packaging, storage and shipment.
Installation 2-1
Initial Inspection
Inspect the shipping container for damage. If the shipping container or cushioning material is
damaged, keep it until you have veried that the contents are complete and you have tested
the analyzer mechanically and electrically.
If the shipment is incomplete or if the analyzer does not pass the operator's check (see chapter
3) notify the nearest Agilent oce. If the shipping container is damaged or the cushioning
material shows signs of stress, notify the carrier. Keep the shipping materials for the carrier's
inspection. The Agilent oce will arrange for repair or replacement without waiting for a
claim settlement.
If the shipping container and cushioning material are in good condition, retain them for
possible future use. You may wish to ship the analyzer to another location or to return it to
Agilent Technologies for service. Instructions for repackaging and shipping the instrument are
located at the end of this chapter.
Shipment Contents
A complete shipment consists of one box (see chapter 1 for part numbers).
The box will contain one each of the following:
HP/Agilent 8757D scalar network analyzer
HP-IB cable
power cable
type-N to 3.5 mm adapter (Option 002 only)
front handles
operating manual
service manual
Serial Numbers
Agilent Technologies makes frequent improvements to its products to enhance their
performance, usability, or reliability, and to control costs. Agilent service personnel have
access to records of design changes to each type of equipment, based on the equipment's
serial number. If you contact Agilent about your analyzer, have the complete serial number
available to make sure that you receive the most complete and accurate information possible.
A serial number label is attached to the rear panel of the analyzer. A typical serial number
label is shown in Figure 2-1. The rst four digits followed by a letter comprise the serial
number prex; the last ve digits are the sequential sux, unique to each instrument.
2-2 Installation
Figure 2-1. Typical Serial Number Label
Operating Environment
Caution
VENTILATION REQUIREMENTS: When installing the product in a cabinet,
the convection into and out of the product must not be restricted. The
ambient temperature (outside the cabinet) must be less than the maximum
operating temperature of the product by 4 C for every 100 watts dissipated
in the cabinet. If the total power dissipated in the cabinet is greater than 800
watts, then forced convection must be used.
To meet the specications listed in chapter 1, you must operate this instrument within the
following limits:
Temperature 0 to +55 C (+32 to 131F)
Altitude
4572 metres (15,000 feet)
Humidity
5 to 95% at +25 to +40 C (+77 to 104F)
Protect the analyzer from temperature extremes which can cause internal
condensation.
Cooling
Leave 10 cm (4 in) of room at the rear of the cabinet and 7.6 cm (3 in) at
the sides of the cabinet. In bench stacking, the plastic feet provide adequate
clearance for the top and bottom surfaces. In rack mounting, ller strips
provide the clearance.
The rear-mounted fan moves air into the instrument and out through the
sides. Clean the fan regularly.
Installation 2-3
Electrostatic Discharge
Because electrostatic discharge (ESD) can damage or destroy electronic components, perform
all work on assemblies consisting of electronic components at a static-safe work station.
Static-Safe Accessories
See chapter 1 \General Information" for static-safe accessories available from Agilent
Technologies.
Figure 2-2 is an example of a static-safe work station using two types of ESD protection that
can be used either together or separately:
1. A conductive table mat and wrist-strap combination.
2. A conductive oor mat and heel-strap combination.
Figure 2-2. Example of a Static-Safe Work Station
Reducing Damage Caused by ESD
The following can help reduce ESD damage that occurs during testing and servicing
operations:
Before you connect a coaxial cable to an analyzer connector for the rst time each day,
momentarily ground the cable center and outer conductors.
Ground yourself with a resistor-isolated wrist strap before touching the center pin of any
connector, and before removing any assembly from the instrument.
To prevent a buildup of static charge, ensure that all instruments are properly
earth-grounded.
2-4 Installation
Power Requirements
Table 2-1. HP/Agilent 8757D Power Requirements
Characteristic
Requirement
Input Voltage 100, 120, 220, or 240 V (610%)
Frequency
48 to 66 Hz
155 VA (max)
Power
Cautions
Before switching on this instrument, make sure
the line voltage selector switch is set to the voltage of the mains supply
the correct fuse is installed
the supply voltage is in the specied range
Checking the Line Voltage and Fuse
Both the voltage selection card and the fuse are located in the AC power module on the
rear panel of the analyzer (see Figure 2-3). For continued protection against re hazard,
replace line fuse only with the same type and ratings. The use of other fuses or materials is
prohibited. To select the line voltage and fuse (see chapter 1 for fuse part numbers):
1. Measure the AC line voltage.
2. Using the values in Table 2-2, follow the instructions in Figure 2-3.
Table 2-2. Line Voltage and Fuse Selection
Measured AC
Voltage
Fuse
Line Voltage
Selection
(V)
Card Position (A)
90 to 110
108 to 132
198 to 242
216 to 264
100
120
220
240
2.5
2.5
1.5
1.5
Installation 2-5
Figure 2-3. Setting the Voltage Selector Switch and Checking the Fuse
Checking the Power Cable
The analyzer is shipped with a three-wire power cable (appropriate for its original
destination), in accordance with international safety standards. When connected to an
appropriate power line outlet, this cable grounds the analyzer chassis.
Warning
This is a Safety Class 1 Product (provided with a protective earthing ground
incorporated in the power cord). The mains plug shall only be inserted in a
socket outlet provided with a protective earth contact. Any interruption of the
protective conductor inside or outside of the product is likely to make the
product dangerous. Intentional interruption is prohibited. (IEC 348 clauses
17.3.3 c) & 17.3.4)
Install the instrument so that the ON/OFF switch is readily identiable and is easily reached
by the operator. The ON/OFF switch or the detachable power cord is the instrument
disconnecting device. It disconnects the mains circuits from the mains supply before other
parts of the instrument. Alternatively, an externally installed switch or circuit breaker (which
is readily identiable and is easily reached by the operator) may be used as a disconnecting
device.
2-6 Installation
Equipment Required But Not Supplied
To make measurements with a standard analyzer, you must have a swept RF or microwave
source and from one to three detectors or directional bridges (four with an Option 001).
AC Detection
AC detection measurements require square wave modulation capability at 27.778 kHz.
Firmware Compatibility
Table 2-3 lists the sweeper rmware revisions required for complete compatibility with the
HP/Agilent 8757D.
Table 2-3. Firmware Revisions
HP/Agilent
Sweeper
8350B
83522A
83525A/B
83540A/B
83545A
83550A
83570A
83572A/B
83590A
83592A/B/C
83594A
83595A
83595C
83596A
83596B
83597A
83597B
83598A
83599A
Firmware
Revision
6
3
3
3
3
6
3
6
6
6
6
6
All
All
All
All
All
All
All
Installation 2-7
Rack Mounting
Caution
Use only the specied screws to install the rack mount kit. Longer screws can
damage internal components located behind the screw mounting holes.
Rack Mounting without Front Handles
(Option 908)
Option 908 instruments are shipped with a rack mount kit. The kit supplies the hardware and
installation instructions to prepare the instrument to mount on an equipment rack with 482.6
mm (19 in) support spacing. To order additional rack mount kits, see Table 1-4.
1. Refer to Figure 2-4. Contact your nearest sales and service oce. See Table 1-5 for a list of
Agilent Oces.
2. Remove each front handle trim 1 :
a. Insert the tip of a screwdriver between the back edge of trim and the front handle.
b. Pull forward.
3. Remove four screws 4 and one front handle assembly 3 per side.
4. Attach one rack mount ange 2 with four panhead screws 4 per side.
5. Remove the feet and tilt stands 5 .
6. Save the at head screws and front handle assemblies for reuse.
Rack Mounting with Front Handles
(Option 913)
Option 913 instruments are shipped with a rack mount kit. The kit supplies the hardware
and installation instructions to prepare a standard instrument (with handles) to mount on an
equipment rack with 482.6 mm (19 in) support spacing. To order additional rack mount kits,
see Table 1-4. Contact your nearest sales and service oce. See Table 1-5 for a list of Agilent
Oces.
1. Refer to Figure 2-4.
2. Remove each front handle trim 1 :
a. Insert the tip of a screwdriver between the back edge of trim and the front handle.
b. Pull forward.
3. Remove four screws 4 and one front handle assembly 3 per side.
4. Attach one rack mount ange 2 and one front handle assembly 3 with four panhead
screws 4 per side.
5. Remove the feet and tilt stands 5 .
6. Save the at head screws and front handle assemblies for reuse.
2-8 Installation
Figure 2-4. Rack Mounting the Analyzer
Installation 2-9
Connecting the Analyzer to a Source
Figure 2-5, Figure 2-6, Figure 2-7, and Figure 2-8 show the interconnections between the
analyzer and three commonly used sources.
External Modulation
Unlike the HP/Agilent 8350, 8360, and 83750 Series sources, HP/Agilent 8340 and 8341
Series synthesizers do not provide an internal 27.778 kHz modulated signal (used in AC
measurements). Use the analyzer's 27.778 kHz modulation signal to externally modulate the
source, connected as described in Table 2-4.
Table 2-4. External Modulation Connections
HP/Agilent Source
8340A
8341A
8340B
8341B
1
Serial
Prex
< 2302A
2320A
all
all
all
Connection/Function
Connection/Function
(W/O System Interface (With System Interface
Connected)
Connected)
Pulse Input/Pulse
AM Input/Shift Pulse
AM Input/Shift Pulse
Pulse Input/Pulse
Pulse Input/Pulse
Input/Pulse
AM Input1
AM Input1
Input/Pulse1
Pulse Input/Pulse1
The correct function is programmed automatically.
Other Configurations
If you operate the analyzer without connecting the HP/Agilent 8757 system interface, make
the connections to the analyzer's POZ BLANK and SWEEP IN 0-10V only. Also use this
conguration with the HP/Agilent 8620 Series sweep oscillator and with non-HP/Agilent
sources. For modulation, connect the MODULATOR DRIVE to the source PULSE input, or
use an external modulator (such as an HP/Agilent 11665B).
2-10 Installation
Figure 2-5. Analyzer to HP/Agilent 8350 Sweep Oscillator Interconnections
Installation 2-11
Figure 2-6. Analyzer to HP/Agilent 8340 and 8341 Series Synthesizer Interconnections
2-12 Installation
Figure 2-7. Analyzer to HP/Agilent 8360 Series Synthesizer Interconnections
Installation 2-13
Figure 2-8. Analyzer to HP/Agilent 83750 Series Synthesizer Interconnections
2-14 Installation
Figure 2-9. Rear Panel Display Connectors
Installation 2-15
Connecting the Analyzer to an External Monitor
CRT
Use the three rear panel outputs (RGB) to drive an external monitor (see chapter 1 for
specic video output characteristics). Connect the three BNC analyzer outputs (RGB) to the
corresponding monitor inputs.
If you use a monochrome monitor, operate the analyzer in monochrome mode and connect
only the green (G) output to the monitor.
LCD
The analyzer can drive both its internal display and an external monitor simultaneously.
Connect the VGA output to the corresponding monitor input.
External Monitor Requirements:
VGA Compatible
640 (horizontal) x 480 (vertical) resolution
59.83 Hz vertical refresh rate
16.716 mS vertical time
31.41 kHz horizontal refresh rate
31.840 S horizontal time
75 ohm video input impedance
video analog amplitude 0.7 Vp-p
negagive true TTL logic for vertical and horizontal synchronization
Setting the HP-IB Address
In remote mode, a controller communicates through the HP-IB, identifying each instrument
on the bus by its HP-IB address. Because of this, each instrument on an HP-IB must have a
unique address (0 through 29 are available).
Factory Setting
The factory sets the analyzer to address 16. The central processing unit (CPU) reads this
address from the rmware when the instrument is rst turned on and stores it in memory.
The address changes only when the value in memory changes, either through a front panel
entry, or when you change the rmware. With a rmware change, the address again defaults
to 16.
2-16 Installation
Checking the Address
To display the current HP-IB address on the CRT:
1. Press 4LOCAL5.
2. Select 8757 .
NNNNNNNNNNNNNN
Changing the Address
To change the HP-IB address:
1. Press 4LOCAL5.
2. Select 8757 .
The CRT displays the current address.
3. Using the front panel keypad, enter the new address.
4. Press 4ENT5 to terminate the entry.
The CRT displays the new address. Turning the line switch o or presetting the
instrument does not aect this address.
NNNNNNNNNNNNNN
Recording the Address
Figure 2-10 shows an HP-IB label (see chapter 1 for ordering information), available for
recording instrument HP-IB addresses.
Figure 2-10. HP-IB Address Label
Installation 2-17
HP-IB Connectors and Cables
A tutorial description of HP-IB is available from Agilent Technologies (see chapter 1 for
ordering information). See also \Remote Operation," which describes the analyzer's HP-IB
capabilities. Figure 2-11 illustrates an HP-IB connector pin conguration and signals.
Connectors
The analyzer has two rear panel HP-IB connectors:
1. The 8757 System Interface (J1).
This remote programming interface lets you connect the analyzer to the HP-IB connector
of compatible instruments and use the analyzer (in either local or remote operation) to
control a plotter, printer, or source. This dedicated HP-IB port is used exclusively by the
analyzer; do not connect a controller to this connector.
2. The HP Interface Bus (J2).
This remote programming interface lets you connect the analyzer to a controller via HP-IB
with or without additional instruments. You can then remotely operate the analyzer with
the same control (except for power, line switch, and internal tests) as with local operation.
The controller maintains remote control by sending commands to and receiving data from
the analyzer over the HP-IB.
Cables
Connect instruments on the HP-IB or on the system interface using HP-IB cables. The
cables are available in lengths from 0.5m (1.6 ft) to 4m (13.2 ft). See chapter 1 \General
Information" for ordering information.
You may connect up to fteen instruments in parallel on the HP-IB or the system interface,
but if the system cable is too long or if the accumulated cable length between instruments
is too long, the system cannot maintain the proper data and control lines voltage levels and
timing relationships (see Table 2-5).
Table 2-5. HP-IB Cabling Restrictions
Number of Instruments Maximum Cable Length
(m/ft)
in the System1
2
>2
na
2-18 Installation
1
Including the analyzer.
2
To each instrument.
3
Between all units.
4/12
2/62
20/653
Figure 2-11. HP-IB Connectors: Signals and Pin Configuration
Installation 2-19
Storing and Shipping
Environment
Store or ship the instrument in environments within the following limits:
Temperature : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 040 to + 70C (040 to + 167F)
Altitude : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 15,240 metres (50,000 feet)
Humidity : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 90% at +65 C (+149F)
Protect the instrument from temperature extremes, which can cause internal condensation.
Packing the Instrument
Hardware
If the analyzer has handles, but no rack mounting hardware, go to \Packaging."
If the instrument has neither rack mount anges, nor handles, attach the handles, and go to
\Packaging."
If the instrument has handles and rack mount anges, remove the anges, reattach the
handles, and go to \Packaging."
If the instrument has rack mount anges, but no handles, remove the anges, attach the
handles, and go to \Packaging."
Packaging
Containers and materials identical to those used in factory packaging are available through
Agilent Technologies oces (see chapter 1 for ordering information). If you choose to package
the instrument with commercially available materials, follow these instructions.
1. Wrap the instrument in heavy paper.
2. Use a strong shipping container. A double-wall carton made of 350-pound test material is
adequate.
3. Use enough shock-absorbing material (3 to 4 inch layer) around all sides of the instrument
to provide a rm cushion and prevent movement inside the container. Protect the control
panel with cardboard. Seal the shipping container securely.
4. Mark the shipping container \FRAGILE".
Returning an Instrument for Service
If your analyzer requires service, contact the Agilent oce nearest you for information on
where to send it. See Table 1-5. Include a service tag (located at the end of this chapter), on
which you provide the following information:
1. Your company name and address (do not give a post oce box).
2. A technical contact person within your company, and the person's complete phone number
including country code and area code.
3. The complete model and serial number of the instrument.
4. Indicate the type of service required (calibration or repair).
5. A detailed description of the problem and how the instrument was being used when the
problem occurred (such as calibration or measurement).
2-20 Installation
When making inquiries, either by correspondence or by telephone, please refer to the
instrument by model number and full serial number.
Installation 2-21
3
Operation
Note
The original HP/Agilent 8757D incorporated a cathode ray tube (CRT) based
display. The current design incorporates a liquid crystal display (LCD) based
display. In this manual, references to either CRT or LCD apply to both
display designs unless noted otherwise.
The front panel LINE switch disconnects the mains circuits from the mains supply after the
EMC lters and before other parts of the instrument.
HP/Agilent 8757D Firmware Compatibility
Caution
Only rmware revisions 5.1 through 6.2 can be used in HP/Agilent 8757D
models with a CRT-based display (revision 6.2 is recommended). Instrument
models with an LCD-base display must use rmware revision 7.0 or greater|
they are not interchangeable.
Check the rear panel of the instrument to determine the type of display. Instruments with the
LCD-based display are equipped with a VGA connector on the rear panel so that an external
monitor may be connected. CRT-based instruments are equipped with three BNC connectors
(RGB) for this purpose. (See Figure 2-9 in Chapter 2, \Installation.")
This operating section provides information that is divided into the following topics and
sections:
Local Operation (see white tab)
User's Guide , which contains:
typical measurement setups
example transmission and reection measurements
Operating Reference , which contains:
front and rear panel operating features
front panel key functions
softkey functions
operator's check
Operation 3-1
Remote Operation (see white tab)
For reference only. The three introductory programming guides may refer to osolete hardware
and software.
This section contains:
information on converting HP/Agilent 8757A software
quick reference guide
introductory programming guides with example programs and programming codes
In Case of Difficulty (see white tab)
This section contains information on what to do if you encounter a problem with the analyzer.
It provides suggestions for minor problems that do not involve defects in the internal circuitry.
(The service manual, chapter 8, provides in-depth troubleshooting information.)
3-2 Operation