rjr@mgweed.UUCP (Bob Roehrig) (03/23/85)
The few FM intercoms I ran across operated near the 160-9190 kHz range. Sounds like the problem could be harmonics of the TV's sweep circuits. I would suggest a brute-force line filter on the TV set's power line. I don't know if wrapping the TV power cord around a ferrite rod would help or not. My RCA XL-100 has a transformer-type power supply but the chassis is connected to one side of the line cord since the transformer is also used as an autotransformer. I measured the horizontal sweep signal being fed back into the power line with a Stoddard VLF rcvr and it was quite high.... Bob K9EUI