Back in 2009, he built “El Silbo”, a ham radio transmitter powered entirely by ... installed at the bottom of the can to convert voice power to electrical power. The signal is passed through ...

Smith] from the University of Washington, which purports to construct a low-throughput RF transmitter from little ... of ambient RF signals from local radio stations; we’ve seen those before ...

Radio World Buyer’s Guide articles are intended to help readers understand why their colleagues chose particular products to ...

Several weather radio transmitters in Illinois are offline Wednesday morning, according to the National Weather Service.

power lines and computers. Lighting sources also can influence AM reception: Fluorescent lighting and most lighting dimmers are actually little AM radio transmitters and can cause severe interference.

how do you transmit audio from your phone to your FM radio? The only way to do that is to use an FM transmitter or FM ...

FM transmitters are not a common feature on mobile phones, but such modern models do exist. The mobiles transmit at low power so interference with regular FM radio stations is highly likely ...