Gregg wrote:

Behold, Radium scribbled:

Are there any AM stations in the microwave-frequency spectrum?

The highest frequency commonly used for AM voice communication is VHF
aircraft. The rest are military.

UHF aircraft voice communications operate from 225 to 400 MHz (mostly
military).



I haven't found a reason not to have an AM station with a frequency as
high as that of the average FM station.

Here's one for you - who could receive it?


I've got at least 4 receivers capable of AM above 1 GHz (1,000 MHz) and
all are at least 10 years old.

Dave