When we think of a spark gap radio transmitter, most of us immediately ... The resulting RF signal is a crude AM tone which can be received fairly simply. The mathematics behind it all is pretty ...

The radio already had its electrolytics replaced — a topic of hot contention lately. If you want to build your own tube-based AM transmitter, you might want to have soup for lunch.

The Nova Scotia-headquartered manufacturer of AM and FM radio broadcast transmitters is heading to the 2025 NAB Show with two ...

Below is a list of all the BBC's radio services that are available on FM and AM. We have listed the frequency ... for your location then use our transmitter checker tool. All these radio services ...