Analog Demodulator - Technical Description - RF Central RFX-RMR Operator's Manual

7.4 ANALOG DEMODULATOR – TECHNICAL DESCRIPTION.
70MHz
-17Bm
demod
Power
+12 v
supply
RFX-RMR
Control lines
Analogue Module
Buffer Video Filter/
Amp de-emphasis
Buffer
Amp
+5 v
-5 v
RMR-D RX
Analog receicer
Simplified block diagram
Issue 1.0
Hi/lo video
Black level
deviation
lamp
switching
Audio Subcarrier
Modulator 1
Audio Subcarrier
Modulator 2
Composite video
Analog audio 1
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