China CATV Amplifier

CATV Amplifier feature:
1. CATV Amplifier forward path adapts import NEC low noise push-pull amplify module or GaAs push-pull module, the output adapts NEC double power amplify module or GaAs amplify module
2. CATV Amplifier return path adopts especially reverse amplify module
3. Plug-in diplexer, plug-in fixed (or adjustable) EQ, fixed (or adjustable) ATT, plug-in output tap and with online testing port.
4. Built-in optimization high performance AGC control circuit
5. Waterproof aluminum housing, high reliability switch power, strictly anti-thunder system

Item Unit ParametersDownlink transmissionFrequency RangeMHz53/85 ~ 860Rated GaindBFP204OUT1≥ 36FZ110OUT1≥ 40OUT2≥ 36 OUT1≥ 30Min Full GaindB≥ 36Rated Input LeveldBμ V72Rated Output LeveldBμ V106/108 Flatness In BanddB± 0.75Noise FiguredB≤10Return LossdB≥16ATTdB1-18 (Fixed inserter, 1dB step))User SelectableEQdB1-15(Fixed inserter, 1dB step) C/CTBdB≥ 67Test condition:79channels.
Output level:53MHz/550MHz/750MHz.
99dBμ V/105dBμ V/108 dBμ VC/CSOdB≥ 69 AGC Pilot FrequencyMHz168.25(or named by user)AGC CharacteristicdB± 4(Input)/± 0.5(Output)Group Delayns≤10 (112.25 MHz/116.68 MHz)Signal to Hum Rate%<2Gain StabilitydB-1.0 ~ +1.0Uplink transmissionFrequency RangeMHz5 ~ 42/65Rated GaindBFZ204 OUT1/2:≥ 20FZ110 OUT1: ≥ 22 OUT2: ≥ 12Min Full GaindB≥ 20≥ 22Max Output LeveldBμ V≥110Flatness In BanddB± 0.75Noise FiguredB≤12Return LossdB≥16Carrier to Second Order Intermodulation RatiodB≥52Test condition:output level 110dBμ V,
Test point:F1=10MHz,F2=60MHz,F3=F2-F1=50MHzGroup Delayns≤20 (57MHz/59MHz)Signal to Hum Rate%<2General CharacteristicCharacteristic ImpedanceΩ75Test PortdB-20± 1Power VoltageVAC135 ~ 250V; AC35 ~ 90V Impulse Withstand Voltage(10/700μ s)kV>5Power ConsumptionW25Dimensionmm247*205*123

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