RF Modulator

UDC RF Modulator RFM212-N is a Compact & Weight design . The device could be mounted directly onto
the equipment mother board . It is multi-application device such as VCR , Laser disk , Satellite Receive & CATV terminal box etc.
RF Modulator 212 Photo , Dimensional Drawing 

Features
  • Excellent video & audio performance
  • High gain antenna booster amplifier
  • Excellent frequency stability at temperature from 0º C to 60º C
  • Compact and reliable
  • Built-in white clip circuit to eliminate bus noise
  • Built-in test signal generator for alignment and test
Technical specification
VIDEO SECTION
Video input level : 1V p-p
Video modulation level ( PAL 50%) : 75%
Video input impedance : 75 ohm unbalanced
Difference phase : 10º max.
Differential gain : 10% max.

AUDIO SECTION
Input level : 1V p-p 100% modulation at 1 KHz
Modulation factor : 100% mod. ± 25 KHz
Input impedance : 10K ohm min.  unbalanced
Total harmonic distortion : 3% max.
Audio S/N ratio : 45dB min .

RF SECTION
Output channel : UHF 30-40 ( CCIR ) 
( Set CH=36CH [ 591.25MHz  ±0.5 MHz ] or customers information )
Output level : 70 dB µV ± 4
Differential in output level : -16 dB ± 4
( Vision to sound )
Spurious signal within assigned band : -60 dB
Spurious signal outsite assigned band : -40 dB
Carrier frequency stability / temp. : ± 600 KHz  from 0º C to 60º C
Inter carrier frequency accuracy : 4.5 MHz ± 8 KHz  ( System N )

ANTENNA RF AMPLIFIER SECTION
Passband : 47-862 MHz
Input & Output Impedance : 75 ohm
Gain : 4.5 dB ± 3
DC Power
Supply Voltage : 5 V DC
Current consumption : 60 mA

RF Connector for RF Ant. Input and TV out.

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