CATV Agile Modulator with LCD

GM-2000 provide audio and video modulated RF carrier on any channel in the 45 to 860MHz frequency range.

Many standard audio/video sources can be used, such as satellite receivers and video tape recorders. GM-2000 has a wide range of standard and optional features that make it very suitable for advanced MATV, SMATV or CATV systems.
SAW filter is employed to provide true vestigial sideband selectivity to delay pre-Distortion. GM-2000 has an external IF loop which allows interfacing with video all-call and signal scrambling system.

Specification:

Items Unit Specifications
Output Frequency MHz 45-550MHz (WAM-550)
45-860MHz (WAM-860)
Frequency accuracy ± 5KHz
Output Level dBmV 55dBmV
Output Impedance W 75
Output reflection 12dB min, any channel
Audio to Video Carrier Ratio dB -10 ~-20
Video Input Level 0.6-1.5 Vp-p
Video Output Impedance W 75
Video Output reflection dB 30dB min
K coefficient 4%(2T pulse)
Signal to Noise Ratio dB 60dB
C/L Delay 40nsec
Band Flatness dB ± 1dB
Differential Gain ± 3%(87.5% Modulation)
Differential Phase ± 5° (87.5% Modulation)
Video Frequency Response dB ≤ 2(Within 5MHz)
Audio Input Level dBm 0± 10
Audio input impedance 10kW
Audio Band Flatness dB ± 1dB max (40Hz-150KHz)
Distortion 1%
Signal to Noise Ration dB -60dB
Difference of Video /Audio 6.5MHz± 2KHz
Video S/N dB ≥ 50
Power Supply 110-250Vac, 50Hz, <10W
Operation Temperature & Humidity -5C~45C\5%~75%
Storage Temperature & Humidity -20C~70C\≤ 80%
(Without Acidity Substance)
Mechanical Dimensions mm 440x268x44