タイトルまたは説明

GG**4M Greengo *4 in 1 Modulator


Description

The *4 in 1 modulator is a space saving,fixed channel modulator sysetm.It consists of *4 individual,vertically mounted,fixed frequency modulators and an efficient swithcing type power supply module.It is designed for *9" rack mounting.
Each modulator is SAW filtered and is factory set to the desired channel and proper offset.Precise frequency is maintained with PLL circuitry.It offers excellent video performance and high reliability in 4U rack.

FEATURES

1.Easy setup,Internal fans for cooling modulators  
2.Only one RF output.No need combiner
3.Precise frequency control with PLL circuitry
4.Each modulator has its control panel
5.Also available in NTSC,all PAL configuration

Specification

Frequency                  *7~**0MHz
Output Level               ≥**5dBμV
Output Level Adj.Range     0~**0dB (Adjustable)
A/V Ration                 **0dB~**0dB (Adjustable)
Output Impedance           *5Ω
Spurious Output            ≥*0dB
Frequency Accuracy         ≤±5KHz
Output Return Loss         ≥*2dB(VHF); ≥*0dB(UHF)
Video Input Level          1.0Vp-p(*7.5% Modulation)
Input Impedance            *5Ω
Differential Gain          ≤5%(*7.5% Modulation)
Differential Phase         ≤5°(*7.5% Modulation)
Group Delay                ≤*5 ns
Visual Flatness            ±1dB
Depth Adjust               0~*0% 
Video S/N                  ≥*5dB
Aduio Input Level          1Vp-p(±*0KHz)
Audio Input Impedance      **0Ω
Audio S/N                  ≥*7dB
Audio Pre-emphassis        *0μs
Dismension                 *9Inch 4U standard Size