Cable TV/adjacent frequency modulator/VEK-20000A/RF converter/set-top box sharing device

 Direct sales from manufacturers, large quantity is negotiable.Provides overall cable TV solutions for hotels, hotels, entertainment centers, rental houses, collective dormitories, etc.

Shenzhen can be delivered throughout the country and provided paid installation/debugging services.Free technical guidance nationwide.

Contact: Mr. Zhao

electricity  words:0755-27804150/15919407001

  plate

Computer room actual case picture 1

Actual case of computer room Figure 1-1

 Specially designed for front-end devices for large cable TVs.Built-in microcomputer automatic control system.Accurately control the output frequency and level amplitude, stable equipment operation, high index, beautiful appearance, and output frequency 47-860MHz (CH 1-56 ZB 1-43) Optional.
   detailed introduction  Performance characteristics:
■ Use high-frequency double-sided panels, surface mounting process, and patch components, with high stability.
■ The maximum output level can reach 120dB.
■ Phase lock loop control, CPU Double lock image accompanying sound.
■  audio/video IF loop design, which can provide independent IF loop input and output interface. 
■ Excellent audio and video linearity.
Technical Parameters:
project  unit parameter 
Output frequency range MHz 47-860 
Output level range dB 100-120 
Output impedance Ω 75 
Neighbors with frequent suppression dB >65 
Frequency error&nbsp;KHz&nbsp;<3&nbsp;
Flatness&nbsp;dB&nbsp;<0.5&nbsp;
Pre -worsening&nbsp;us&nbsp;50&nbsp;
RF reflection loss&nbsp;dB&nbsp;>15&nbsp;
Video mid-frequency level&nbsp;dB&nbsp;34&nbsp;
Acoustic mid-frequency level&nbsp;dB&nbsp;17&nbsp;
Video mid-frequency frequency&nbsp;KHz&nbsp;38&nbsp;
Acoustic mid-frequency frequency&nbsp;KHz&nbsp;31.5&nbsp;
Medium frequency reflection loss&nbsp;dB&nbsp;>14&nbsp;
Image/Voice Power ratio&nbsp;dB&nbsp;10/20&nbsp;
Video input signal&nbsp;Vp-p&nbsp;1&nbsp;
Video tone system&nbsp;%&nbsp;&ge;87.5&nbsp;
Differential gain&nbsp;%&nbsp;<3&nbsp;
Differential phase&nbsp;.&nbsp;<3&nbsp;
Color/brightness delay difference&nbsp;ns&nbsp;<35&nbsp;
Video signal -to -noise ratio&nbsp;dB&nbsp;>55&nbsp;
Voiced medium&nbsp;MHz&nbsp; 6.5 or 6.0 optional&nbsp;
Audio input signal&nbsp;V&nbsp;0.775&nbsp;
Audio frequency offset&nbsp;KHz&nbsp;&plusmn;50&nbsp;
Audio distortion&nbsp;%&nbsp;+1&nbsp;
Audio signal -to -noise ratio&nbsp;dB&nbsp;55&nbsp;
powered by&nbsp;AC&nbsp;Ac220&plusmn; 10 %&nbsp;
power&nbsp;W&nbsp;25&nbsp;
Operating temperature&nbsp; ℃&nbsp;0-40&nbsp;
Dimensions&nbsp;In&nbsp;19&rdquo;&nbsp;