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Leader LG226 TV Signal Generator




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Leader LG226

Datasheet

Features:
  • Suitable to check the video and sound of analog TV
  • 30 MHz to 950 MHz RF Frequency in 50 kHz steps
  • Channel table to set the RF signal in channel instead of the frequency
  • Highly reliable electronic attenuator
  • Uses VSB (Vestigial Sideband) modulation
  • FM modulation and AM modulation
  • Stores up to 100 front panel settings
  • INC,DEC, and RESET operation can be specified via the REMOTE control connector
  • GPIB interface



  Description

The LG 226 TV Signal Generator provides the capability to modulate an analog TV signal in VSB-AM format applicable to the PAL, NTSC, and SECAM broadcasting systems.

The TV signals of VHF, UHF, and CATV channels can be generated by applying the external composite video signal and audio signal.

The full-field color bars and line sweep signals, and 1 kHz/400 Hz audio signals can also be generated. This instrument can also be used as an analog TV signal modulator of the LT 450 Video Signal Generator since this instrument provides the LT 450 control capability.




  Models, Options, & Accessories


Model Description List Price Sale Price
LG226 TV Signal Generator $9495.00
Instant
* Price Quote *
LG3802S1-1 ISDB-T Signal Generator w/2nd Local Oscillator $33750.00
Instant
* Price Quote *
LG3802S1-1 W/OP70 ISDB-T Signal Generator w/2nd Local Oscillator, HDD & USB Option $22000.00
Instant
* Price Quote *
LG3802S1-1 W/OP71 & OP72A Please call or email us for pricing and availability.
LG3803S1 8VSB/QAM Signal Generator $29800.00
Instant
* Price Quote *
LG3803S1 W/OP71 8VSB/QAM Signal Generator w/HDD & USB Option $36000.00
Instant
* Price Quote *
LG3803S1 W/OP71 & OP72 8VSB/QAM Signal Generator w/HDD, USB & Fading Option $44495.00
Instant
* Price Quote *
LG3804 W/OP72 DVB-T Signal Generator w/Fading Option $41295.00
Instant
* Price Quote *
LG3804 W/OP73 DVB-T Signal Generator w/DVB-H Option $39795.00
Instant
* Price Quote *
LG3804 W/OP74 DVB-T Signal Generator w/DVB-C Option $37795.00
Instant
* Price Quote *



  Specifications

RF Output
Frequency Range 30 MHz to 950 MHz
Frequency Resolution 50 kHz
Frequency Accuracy 10 ppm
Frequency Switching Time Within 100 ms
Frequency Setting
   Channel Mode Setting with a built-in channel table
   Frequency Mode Setting an arbitrary frequency
Output Impedance 75 Ω
Output Connector BNC
Output Level Range -80 to 0 dBm (0 dBm max.)
Level Resolution 1 dB
Output Level Accuracy ±2 dB (0 to -9 dBm)
±3 dB (-10 to -80 dBm)
Spurious Within -30 dBc (Harmonics)
Within -40 dBc (Non-Harmonics)
Video Signal
Modulation System Amplitude modulation of the VSB (vestigial sideband) system according to a broadcast system
Modulation
   At the time of built-in channel table setting 87.5 %±3 % (Negative modulation)
97.0 %±3 % (Positive modulation)
   At the time of arbitrary setting 0 to 100 % (in 0.5 % steps)
Modulation Frequency Band  
   At the time of built-in channel table setting 4.2 MHz/5.0 MHz/6.0 MHz (Depends on a broadcast system)
   At the time of arbitrary setting 4.2 MHz/5.0 MHz/6.0 MHz
Modulation Frequency Flatness ±1 dB
Input Impedance 75 Ω
Input Connector BNC
Reference Input Level 1 Vp-p
Spectrum Polarity Positive (upper sound wave)
Built-in Pattern Full-field Color Bar (NTSC/PAL)
Line sweep (at 100 % modulation: 4.2 MHz) (NTSC/PAL)
Sound Signal
Carrier Frequency
   At the time of built-in channel table setting 4.5 MHz/5.5 MHz/6.0 MHz/6.5 MHz
(Depends on a broadcast system)
   At the time of arbitrary setting 4.5 to 6.5 MHz (in 0.5 MHz steps)
Video Sound Ratio
   At the time of built-in channel table setting -6 dB/-7 dB/-10 dB (Depends on a broadcast system)
   At the time of arbitrary setting -30 to 0 dB (in 1 dB steps)
Modulation Types FM/AM (L System) (Depends on a broadcast system at the time of builtin channel table setting)
Frequency Deviation
   At the time of a built-in channel table Setting 15 kHz/30 kHz(equivalent to 60 % of the maximum deviation for each broadcasting system)
   At the time of an arbitrary setting 0 to 100 kHz (in 1 kHz steps)
Modulation (AM)
   At the time of built-in channel table Setting 60 %
   At the time of arbitrary setting 0 to 60 % (in 1 % steps)
Pre-Emphasis
   At the time of built-in channel table setting 75 µs/50 µs (Depends on a broadcast system)
   At the time of arbitrary setting 75 µs/50 µs/OFF
Modulation Frequency Response 40 Hz to 100 kHz
Modulation Frequency Flatness ±1 dB
Reference Input Level 0 dBm (0.775 Vrms)
Input Impedance 600 Ω
Input Connector BNC
Built-in Sound Signal Sine wave 400 Hz/1 kHz
Preset
Function Up to 100 sets of panel settings can be stored and recalled.
GPIB
Function Enables the key operations of the front panel except a power switch.
Connector 24-pin rectangular connector 57LE-20240-7700D35G (DDK) or equivalent
Corresponding Standard ANSI/IEEE Std 488.1-1987
REMOTE
Function Enables the INC, DEC, and RESET operations of the preset memory.
Connector 14-pin rectangular connector 57LE-4014-7700 (DDK) or equivalent
Input Level TTL
RS232C
Function Controls the Video signal generator LT 450, Selects the INC, DEC, or RESET/video format which are related to the PRESET-MEMORY.
Connector 9-pin D-Sub (M)
Signal Format Bidirectional serial data
Environmental Conditions
Operating Temperature 0 to 40 °C
Operating Humidity <=85 %RH (without condensation)
Operating Environment Indoor use
Operating Altitude Up to 2,000 m
Overvoltage Category II
Pollution Degree 2
Power Requirements
Voltage AC90 to 250 V
Power Frequency 50/60 Hz
Power Consumption 35 W max.
Dimensions 426(W) X 88(H) X 400(D) mm (excluding projections)
Weight 5.6 kg



 

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