400D economy TV demodulator is the CATV head end equipment, which is used to receiving plough TV signals. The demodulated output video and audio signals can load to modulator directly in
CATV headend. Features 1. Can receive 4 plough TV signals at the same time and convert
them into Audio and video signal. 2. Adopting frequency composed technology, CPU control, is able to
choose channels directly.
3. Stable frequency, convenient and accurate control.
4. Easy operation, function keys are on front panel.
5. Input channel displayed by LED on the front panel 6. Adopting integrative demodulator, high dependability and high
temperature stability with the unit.
7. Luxurious standard housing.
8. High dynamic power supply.
Specifications Input Frequency Range | 45MHz ~ 860MHz | Carrier Ware Level | 70 dBV (typical) 60 ~ 80 dBV range | Input Reflect Loss | 8dB | Output Level | 10.2Vp-p | Output Impedance | 75 | Video s/n | 53dB( emphasis , nominal ratio input) | Frequency Response | ± 1.5dB0.1MHz ~ 5MHz ） | Differential Gain | ± 8 %modulation 87.5 ） | Differential Phase | ± 8modulation87.5 | Output Level | 0.775V(600 load 、50KHz deflection ) | Frequency Response | ± 2dB | Distortion | 1.5 % | Signal to Noise Ratio | 55dB （nominal ratio input） | Voltage | 110-245V AC |
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