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FM Overload

M

MarioMania

I live like not a mile from 2 Transmitters in Carmichael on Auburn Blvd on Via Casitas
K289CT - Relaying KFIA 710 Carmichael 0.28 kW
KKDO 94.7 Sacramento 25,000 Watts

Does anyone here lives near a transmitter?

It wreaks havoc on my Most Radio's I have, I use Good ones to go out

Radio.jpg
 
Most cheap radios will overload at that distance. It used to be worse before digital tuners. I had some issues when I lived about 5 miles from South Mountain in Phoenix, where there are a dozen or so 100 kW FM stations on top. My older analog radios were just noise across the band, but the digital tuners worked fine for the most part. Even when I lived further north in the '70s, I couldn't connect any kind of antenna to my cheap stereo, or the same noise due to overload would occur. Fortunately, leaving the antenna terminals disconnected worked just fine.
 
Are you getting a signal 710 kHz either side of 94.7 (~95.4 and ~94.0)? That is an additional possibility, a type intermodulation between an AM and FM station. There could also potentially be an interaction between 105.7-94.7=11 MHz, with receiver with a ridiculoulsly high IF Bandwidth. That would be all over the dial. But just the blanketing contour could be the source.
 


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