Sirius listening on vintage radio

[fifties]

Originally Posted by darklife

This comes from both my experience using it and from hearing others using it for the legitimate talking house sign advertising.
After moving away from the transmitter far enough to hear it start to fade and mix with other stations on the same channel I clearly hear a bit of FM in the signal.
Maybe with the newer models they fixed this?

After moving far enough away from any AM transmitter the signal will fade, and in some instances heterodyne with one or more stations on the same frequency.

I have never heard, however, of an FM transmission being reproduced on an AM receiver; it's just not possible.