Zimbabwe's Sungulani Maxwell Chikumbutso recently demonstrated what he claims to be revolutionary energy technology to ...

Do you listen to AM radio? Curtis LeGeyt, National Association of Broadcasters (NAB) CEO, says AM radio reaches 47 million people each week. But there’s speculation it could be phased out for ...

Back in 2009, he built “El Silbo”, a ham radio transmitter powered ... Like many QRP transmitters El Silbo’s circuit is rather simple. A junk box loudspeaker is installed at the bottom ...

[Angus McInnes] has been working on AM radio transmission techniques ... experiments use a Teensy microcontroller board as an AM transmitter. This is not a standalone solution, but rather a ...