I think I made a mistake..

[Skogsgurra]

..when I put a question in the Communication & Signal Processing engineering forum. It hasn't had any activity since january and nobody seems to visit. Could anyone explain what happened to my FM receiver?
thread236-317500




Gunnar Englund

http://www.gke.org

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Half full - Half empty? I don't mind. It's what in it that counts.

 

[msquared48]

I had a problem many years ago with a hamm operator that was running too much power in his antenna system, bleeding power and interference into adjacent bands that I would pick up on certain FM stations.

It could also be a new local repeater, or microwave communication interference.

I'm not an EE, obviously, but the FCC did solve my problem for me, not that it helps you. Good luck.

Mike McCann
MMC Engineering

http://mmcengineering.tripod.com

 

[VEBill]

I had a problem many years ago with a hamm operator that was running too much power in his antenna system, bleeding power and interference into adjacent bands that I would pick up on certain FM stations.

In most Ham-on-neighbor RF interference cases, the amateur radio enthusiast is emitting a perfectly legal signal. There may be the occasional clown that runs in excessive of the legal limit (1500 watts), or accidentally overdrives his amplifier causing splatter, but these are relatively rare. 1500 watts of perfectly-legal HF is enough to cause many consumer grade radios or TVs (or anything) to become non-linear and generate interference internally.

Obviously I can't know exactly what happened in your case. The most likely scenario is that the Ham voluntarily stopped using his kilowatt-class linear amplifier. But anything is possible.

Another possibility is that it wasn't a legally licensed Ham. If the voice was speaking with a drawl and saying "10-4" a lot, then that's a CBer. A few of them run illegal power levels and cause all sorts of problems.