Frequency Agile NTSC TV Demodulator

A small hack on a commercial CATV TV demodulator.  An Olson Technology OTD-3000 TV demodulator is modified to run from a 12-volt battery and the PLL sythesizer was replaced with a manual tuning potentiometer.  This allows for quickly scanning the airwaves (or coaxial cable line) for any NTSC TV transmissions.  This is very useful for TSCM applications or for receiving video from your own TV transmitter.

Block Diagram




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