LG3803 - Leader Signal Generators

LG3803 - Leader Signal Generators
SIGNAL GENERATOR
LG 3803
LG 3803 8VSB/QAM Signal Generator
Designed to address the challenges of DTV tuner testing, the LG
3803 provides all of the signal control necessary for testing the
performance of ATSC compliant tuners and receivers.
The RF output can be set to emulate 8VSB, 64 and 256QAM
modulation formats and the modulation frequency can be
set from 50MHz to 900MHz covering the entire VHF and UHF
spectrum. Output level ranges from -100 to +13dBm (50 Ohm)
and it is settable with 0.1dB resolution; ideal for doing input
sensitivity tests.
A pseudo-random (PN) generator and a BER counter are built
into the instrument and facilitate easy BER measurements in a
single unit.
The instrument can be modulated internally (2 built-in test
patterns; color bars and ramp) or can be externally modulated
(DVB-ASI or SPI input). An optional DVD drive is available to
supply moving video playback for HD rates; an excellent way to
test receivers in a "real life" simulation.
The QVGA display provides easy instrument control. The
instrument can be Ethernet controlled. Remote control allows
preset recall and increment; up to 100 presets can be set up and
recalled aiding in the automatic testing process.
LG 3803-01 Out-Of-Band Generator
LG 3803 Rear Panel
42
FEATURES
• Ideal For The Production, Test And Alignment Of ATSC
Compliant Tuners And Receivers/STBs.
• Includes 8VSB And 64QAM/256QAM Modulation
Standards; Covers Both VHF And UHF Bands.
• Coding Modulator, C/N Generator And Upconverter Are
Integrated In A Single Instrument.
• Built-in Pseudo-Random (PN) Signal Source And BER
Counter Facilitate BER Measureme n t s U s i n g O n e
Instrument.
• Real Time Coding And Modulation Provides Realistic Test
Signals.
• Real Picture Playback Function Is Available As An Option
• Out-Of-Band Option Allows For CATV Return Path BER
Evaluation
• Intuitive, Clear Display, 100 Presets And Ergonomic Design
Make The LG 3803 The Perfect Choice For Manufacturing
And Service Applications.
The LG 3803-01 is a companion/accessor y instrument
for the LG 3803 8VSB/QAM Signal Generator. When the
2 instruments are connected, the LG 3803/3803-01 pair
becomes capable of providing QPSK signals compliant to
USA CATV Out-Of-Band Standard (ANSI/SCTE 55-1, 55-2).
The testing features of the LG 3803 are extended to CATV
Out of Band testing; for example, the built in C/N generator
permits BER measurements while the variable output permits for
sensitivity testing.
LG 3803 8VSB/QAM SIGNAL GENERATOR SPECIFICATIONS
Broadcast System
Terrestrial Digital TV Broadcast
Cable TV Broadcast
Modulation Format
RF Signal Generator
Frequency Range
Output Range
Resolution
Impedance
Input/Output Signal Source
Pseudo Random Signal
Still Picture Pattern
Screen Size
Sound (tone)
DVB-ASI Input
Input Connector
Input Impedance
Input Level
Transmission Rate
DVB-SPI Input
Input Connector
Input Impedance
Input Level
Input Format
ASI, SPI Input Specification
Input Packet Format
Stream
Input Data Rate
FREQ STD Input/Output
Connector
Impedance
Level
Frequency
4-Line Serial BER Input
Input Connector
Input Level
Input Signal
TS Clock Output
Output Connector
Output Impedance
Output Level
Output Frequency
BER Counter Input
Packet Length
Input Connector
GO/NO-GO Judgment
Judgment Value Setting
Judgment Display
C/N Generator Section
C/N Adjustable Range
Setting Resolution
Additional Control
External Interface
Memory Card Interface
Memory Card
Ethernet Interface
USB Interface
GP-IB
Input Level
Connector
Remote Function
Display
ATSC A/53B
ITU-T J.83 annex B
8VSB/64QAM/256QAM
50 to 900MHz
-100 to +13dBm
50Ω terminator
0.1dB
50Ω
PN23
color bar, ramp, monoscope
1920 x 1080i, 1280 x 720p (16:9), 720 x
480i (16:9), 720 x 480i (4:3)
1kHz (LR), 400Hz (LR), 1kHz (L) +
400Hz (R).
BNC
75Ω
0.8 Vp-p
270Mbps
D-sub 25-pin
differential 100Ω
LVDS
MPEG2-TS, BER counter selectable
188Byte
MPEG2-TS (ISO/IEC13818-1)
Maximum 25Mbps
BNC
50Ω
0.8 Vp-p
10MHz
BNC
LVTTL 3.3V
SYNC, VALID, CLOCK, DATA
BNC
50Ω
TTL
2.424083MHz (8VSB), 3.371294MHz
(64QAM), 4.851338MHz (256QAM)
188Byte
DVB-SPI connector, serial
BER upper and lower limits settable
GO/NO-GO indications displayed on the
screen
0 to 31dB
0.1dB
ON/OFF selectable
CFA TYPE-1 CF card
10BASE-T/100BASE-TX
USB1.1
TTL
57LE-30240 (Amphenol)
Preset memory recall (INC/DEC)
QVGA (320 x 240)
5.7 inch TFT color LCD
Environmental Conditions
Operating Temperature
Operating Humidity
Spec-guaranteed Temperature
Spec-guaranteed Humidity
Operating Environment
Operating Altitude
Over Voltage Category
Pollution Degree
Power Requirements
Dimensions and Weight
0 to 40 °C
≤85% RH (without condensation)
10 to 35 °C
≤85% RH (without condensation)
Indoor use
Up to 2,000 m
II
2
90 to 250 VAC, 50/60 Hz, 140W Max
426(W) x 150(H) x 450(D) mm,
Approx. 14kg
16.8(W) x 5.9(H) x 17.9(D) inch,
Approx. 30.9 Lbs
LG 3803-01 OUT-OF-BAND (OOB) SPECIFICATIONS
Modulator Section
Standard
Modulation Format
Symbol Rate
RF SG Section
Frequency Range
Resolution
Output Range
Resolution
Impedance
Input/Output Signal Source
Built-in Signal
Pseudo Random Signal
BER Serial Input
Input Connector
Input Level
BER Counter Section
Input Connetor
GO/NO-GO Judgment
Judge Limit Setting
Judgment Display
C/N Generator Section
C/N Variable Range
Resolution
Control
External Interface
Memory Card
Ethernet
Display
Display Contents
Environmental Conditions
Operating Temperature
Operating Humidity
Spec-guaranteed Temperature
Spec-guaranteed Humidity
Operating Environment
Operating Altitude
Over Voltage Category
Pollution Degree
Power Requirements
Dimensions and Weight
ANSI/SCTE 55-1, 55-2
QPSK
1.024Msps (ANSI/SCTE 55-1:
Alternative)
0.772Msps (ANSI/SCTE 55-2:GRADE A)
1.544Msps (ANSI/SCTE 55-2:GRADE B)
70 - 130MHz
1kHz
-100 - +13dBm 50Ω terminator
0.1dB
50Ω
PN23
BNC
LVTTL 3.3V
Serial input connector
BER upper and lower setting
Display GO/NO-GO on the screen
0-20dB
0.1dB
ON/OFF switch
CFA Type-1 CF card
10BASE-T, 100BASE-TX
LCD
BER measurement value, GO/NO-GO
judgment
0 to 40 °C
≤ 85% RH (without condensation)
10-35 °C
≤ 85% RH (without condensation)
Indoor use
Up to 2,000 m
II
2
90 to 250 VAC, 50/60 Hz,
Approx. 40W Max
426(W) x 99(H) x 450(D) mm,
Approx. 7kg
16.8(W) x 3.9(H) x 17.9(D) inch,
Approx. 15.5 Lbs
43
LG 3804
Out-Of-Band Generator
The LG 3803-01 is a companion/accessor y instrument for the LG
3803 8VSB/QAM Signal Generator. When the 2 instruments are
connected, the LG 3803/3803-01 pair becomes capable of
providing QPSK signals compliant to USA CATV Out-Of-Band
Standard (ANSI/SCTE 55-1, 55-2). The testing features of the LG
3803 are extended to CATV Out of Band testing; for example, the
built in C/N generator permits BER measurements while the
variable output permits for sensitivity testing.
LG 3803-OP70
The LG 3803 OP70 Moving Picture Option is designed to
install to the LG 3803 main frame. Since the 80-GB 2.5"
HDD and DVD drives are provided, large file of HDTV or
long time contents can be directly coded/modulated and
output as a modulated RF signal.
FEATURES
• MPEG-2 TS can be played back from the HDD.
• Since internal flash memory is used to start OS and
applications, no problem will occur even if power is
accidentally turned off. Entire capacity of HDD can be
used for storing and playing back data.
• Description of the stream (e.g., packet size, bit rate) is
analyzed and automatically set.
• Data stored on the disc media (e.g., DVD-ROM,
CD-ROM) can be fetched to the HDD.
• TS data can be fetched via the LAN connector on the
rear panel.
• Up to 419 MB data can be stored in the RAM and
played back.
• The played back range (i.e., start to end) can be set by
time length.
SPECIFICATIONS
HDD
Type, Format
Capacity
Maintenance
2.5" IDE interface
80 GB
Installing and detaching are possible from
the front panel
DVD Drive
Type, Format
Applicable Media
Speed
Slim type CD/DVD-ROM drive
CD-ROM, CD-R, CD-RW, DVD-ROM,
DVD-R, DVD-RW
x8 for DVD, up to x24 for CD
LG 3803-OP72
The LG 3803-OP72 is an option that is integrated within the
LG 3803. The Option 72 allows for terrestrial multipath
simulation. Control over the number of simulated paths (up
to 12) and their various characteristics is available. Various
multipath fading simulations are available as recommended
by GSM and the ATSC.
FEATURES
• Efficient and affordable multi-path terrestrial broadcast testing using built-in option.
• Fading parameters can be set from the front panel or
via remote control.
•Various multipath simulations are available.
•Adheres to GSM and ATSC recommended EMR
measurements.
SPECIFICATIONS
Fading Generator
Maximum Number of Path
Moving Object Velocity
Setting Unit
Toppler Frequency
Setting Unit
Fading Type
Setting Range
Opposed Delay Time
Setting Step
Opposed Path Loss
Setting Step
12 (each path can be ON/OFF)
0.1 to 999.9 km/h
0.1 km/h
0.1 to 200.0 Hz
0.1 Hz
Rayleigh, Rice, frequency shift, phase shift
-1.0 to 1.0 (frequency shift) 0.1 step
0 to 360° (phase shift) 1° step
0 to 800.0 us
Approximately 0.1us
0 to -29 dB
0.1 dB (0 to -10 dB)
0.5 dB (-10 to -20 dB)
1.0 dB (-20 to -29 dB)
RF Signal Generator
Frequency
Accuracy
Output Level
Applicable Stream
Format
Packet Length
File Size
Playback
MPEG-2 TS (ISO/IEC 13818-1)
188/204 bytes
Up to disc capacity
Playback Format
Loop Playback
Playback Range
Memory Playback
Environmental Coditions
MPEG-2 TS (ISO/IEC 13818-1)
Possible (not applicable seamless)
Begin to end specified by time length
Possible
C/N Variable Range
Operating Temperature
Operating Humidity
Spec-Guaranteed Temperature
Spec-Guaranteed Humidity
Operating Environment
Operating Altitude
Overvoltage Category
Pollution Degree
5 to 40 °C
≤85%RH (without condensation)
10 to 35 °C
≤85%RH (without condensation)
Indoor use
Up to 2000 m
II
2
Environmental Coditions
Operating Temperature
Operating Humidity
Spec-Guaranteed Temperature
Spec-Guaranteed Humidity
Operating Environment
Operating Altitude
Overvoltage Category
Pollution Degree
Setting Step
Accuracy
50 to 900 MHz
1 kHz step
±0.4 x 10-6
-100.0 to +13.0 dB (normal mode)
-100.0 to +8.0 dB (6 paths mode)
-100.0 to +3.0 dB (12 paths mode)
0.1 dB
±2.5 dB
C/N Generator
Setting Step
Control
0 to 35 dB (normal mode)
0 to 30 dB (6 paths mode)
0 to 25 dB (12 paths mode)
0.1 dB
ON/OFF switch
0 to 40 °C
≤85%RH (without condensation)
10 to 35 °C
≤85%RH (without condensation)
Indoor use
Up to 2000 m
II
2
DVB-T SIGNAL GENERATOR
LG 3803 AVAILABLE OPTIONS
LG 3803-01
OP70:
Moving Picture Option.
LG 3804 DVB-T Signal Generator
Ideal for The Production, Test and Alignment of DVB-T
Compliant Tuners and Receivers/STBs.
The LG 3804 DVB-T Signal Generator, conforms to DVB-T
(digital terrestrial TV in Europe System) standards, features a
channel coding, modulation, C/N generator, and up converter
in a single package. Consequently, the modulated signal
covering VHF and UHF channels can be output.
Providing pseudo random signal (PN) and BER counter can
perform BER measurement of receivers and tuners with a
single unit.
In addition to the internal TS signal, the external MPEG-2 TS
can be used to evaluate video and sound quality. Such
powerful features are ideal for total evaluation of a reception
system.
LG 3804 REAR PANEL
FEATURES
• All-In-One
This instrument features the signal generator capability
and BER measurement capability in a single package.
The BER function is used to measure the front-end
section; the broadcasting MPEG-2 TS function is used to
visually check entire system.
Also, such features are ideal for the production line of
STB and tuners.
• Arbitrary Modulation System Settings
The modulation system can be arbitrary set via the front
panel controls. The QVGA LCD graphically displays the
setting conditions.
• Encoding/Modulation MPEG-2 TS in Real Time
The MPEG-2 TS applied from the DVB-ASI or DVB-SPI
connector can be encoded/modulated in real time.
• 100 Preset Conditions
Up to 100 preset conditions can be stored in the memory.
Since the stored contents can be categorized into 10
groups, the preset mode is convenient for inspection
applications.
• Various Options
Moving Picture Option (Factory option)
With the HDD and DVD-ROM installed, a stream including
HDTV content (i.e., requires large storage area) and
long-time TS can be played back from the HDD.
SIGNAL GENERATOR
LG 3803/3804/3803-01 SPECIFICATIONS
Model
Broadcasting System
Terrestrial Digtal TV Broadcast
Cable TV Broadcast
Modulation System
ATSC A/53B
ITU-T J.83 annex B
8VSB/ 64QAM/ 256QAM
Band Width
Coding Rate
FFT Mode
Guard Interval
-----
RF Signal Generator
Frequency Range
Output Range
Input/Output Signal Sources
Pseudo Random Signal
Still Picture Pattern
Sound(Tone)
Screen Size
LG 3803
50 to 900MHz
-100 to + 13dBm (into 50Ω)
LG 3804
DVB-T
-QPSK/16QAM/64QAM,
hierarchical
6MHz/7MHz/8MHz
1/2, 2/3, 3/4, 5/6, 7/8
2k, 8k
1/4, 1/8, 1/16, 1/32
30 to 960 MHz
PN15, PN23
Color bar, ramp, monoscope
1kHz(LR), 400Hz(LR), 1kHz(L) +400Hz(R)
1080i/ 720p/ 480p/
480i(16:9)/ 480i(4:3)
(*1)
DVB-ASI Input
Input Connector
Input Level
Baud Rate
BNC (Impedance; 75Ω)
0.8Vp-p
270Mbps
DVB-SPI Input
Input Connector/Impedance
Input Level
Input Format
25-pin D-sub/100Ω differential input
LVDS
MPEG-2 TS or BER count input
ASI, SPI Input Specification
Input Packet Format
Applicable Stream
188, 204 byte
MPEG-2 TS (ISO/IEC 13818-1)
FREQ STD Input/Output
Input Connector
Input Level
Input Frequency
BNC (Impedance; 50Ω)
0.8 Vp-p
10 MHz
4-Line Serial BER Input
Input Connector
Input Level
Input Signal
BNC
LVTTL 3.3V
CLOCK, DATA, SYNC, VALID
BER Counter Section
Input Section
Packet Length
Input Connector
188,204 byte
DVB-SPI connector, Serial Input Connector
GO/NO-GO Function
Threshold Settings
GO/NO-GO Indication
C/N Generator Section
C/N Variable Range
On/Off
External Interface
Memory Card Interface
ETHER Interface
USB Interface
GP-IB
Display Panel
LCD
Environmental Conditions
Spec-Guaranteed Temperature
Spec-Guaranteed Humidity
Power Requirements
Voltage
Power Consumption
Dimensions
Weight
Model
Modulator Section
Standard
Modulation System
Symbol Rate
RF Signal Generator
Frequency Range
Output Range
Input/Output Signal Sources
Pseudo Random Signal
BER Serial Input
Input Connector
Input Level
BER Counter Section
Input Connector
GO/NO-GO Function
Threshold Settings
GO/NO-GO Indication
C/N Generator Section
C/N Variable Range
Setting Resolution
On/Off
External Interface
Memory Card Interface
ETHER Interface
Display Panel
Environmental Conditions
Spec-Guaranteed Temperature
Spec-Guaranteed Humidity
Power Requirements
Voltage
Power Consumption
Dimensions
Weight
LG 3803-01
ANSI/SCTE 55-1, 55-2
QPSK
1.024Msps (55-1; Alternative)
0.772Msps (55-2:Grade A)
1.544Msps (55-2;Grade B)
70 to 130MHz
-100 to + 13dBm (into 50Ω)
PN15, PN23
BNC (Impedance; 75Ω)
LVTTL 3.3V
Serial Input Connector
Upper and Lower limits of BER
Displays GO/NO-GO on the screen
LG 3803-01
Out-Of-Band
Generator
0 to 20dB
0.1dB
Selectable
Compact flash card (CFA TYPE-I)
10BASE-T, 100BASE-TX
10 to 35 °C
≤85 %RH (without condensation)
90 to 250 VAC, 50/60 Hz
40W max.
16.8(w)×3.9(H)×17.9(D) inch
Approx 15.5 Lbs
LG 3803
8VSB/QAM
Signal Generator
Upper and Lower limits of BER
Displays GO/NO-GO on the screen
8VSB and 64QAM/256QAM Modulation
Out-Of-Band Option (LG 3803-01) Allows For CATV
• Includes
•
Standards; Covers Both VHF And UHF Bands.
Return Path BER Evaluation.
Modulator, C/N Generator and Upconverter • Intuitive, Clear Display, 100 Presets And Ergonomic
• Coding
Are Integrated In A Single Instrument.
Design Make The LG3803 The Perfect Choice For
Manufacturing And Service Applications.
Pseudo-Random (PN) Signal Source And
• Built-in
BER Counter Facilitate BER Measurements Using • A factory installed Natural Picture Option (Option 70)
One Instrument.
Generates Real-Life Test Streams Allowing For
Realistic Testing On The Bench.
Time Coding And Modulation Provides
• Real
Realistic Test Signals.
0 to 35 dB (Setting Resolution: 0.1dB)
Selectable
Compact flash card (CFA TYPE-I)
10BASE-T, 100BASE-TX
USB1.1
24-pin, ANSI/IEEE Std 488.1 - 1987
5.7” QVGA (320 x 240) TFT Color LCD
10 to 35 °C
≤85 %RH (without condensation)
90 to 250 VAC, 50/60 Hz
140W max.
16.8(W)×5.9(H)×17.9(D) inch
Approx 30.9 Lbs
*1 : Picture pattern and sizes are subject to without notice.
Printed in USA
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement