There are not many AM transmitters that are easier to build than this one because the inductor is not tapped and has a single winding. There is no need to wind the inductor as it is a readily ...

The AM transmitter can be used near an AM radio that is tuned to 1000 in order to hear the sound source from the user in the AM radio or send voice and music across the room or street. The heart of ...

[Angus McInnes] has been working on AM radio transmission techniques. He tried out a method of using a VGA port for the task but found the vertical blanking was audible. His latest experiments use a ...

Last week, Tech Talk looked at listening to internet radio at home when the computer is in one room and the listener is in another. A sharp reader, Guy Chambers, has sent in his own solution, and it ...

Beginners usually lack troubleshooting skills because troubleshooting, by its nature, takes quite a bit of time to learn. No one becomes completely proficient overnight. That said, excellent ...

Over long cable runs, an isolated 4-to-20-mA current loop offers robust noise immunity and tolerance. This characteristic makes it popular for analog data transmission in noisy industrial and process ...

The chances are that many of you will have made an FM “bug” style transmitter, a simple one-transistor oscillator usually driven by a small electret microphone. It’s also relatively straightforward to ...