Sometimes, it is useful to transmit a low-power radio signal to create a beacon, to send a signal carrier to a near receiver, to transmit in QRP or QRPP mode, and so on. The circuit shown here is very ...

Testing FM receivers is not that much different than testing other pieces of audio equipment. Appropriate tests include the big six: level, frequency response, THD+N, phase, interchannel crosstalk, ...

WOR Has New York’s First Commercially Available HD Radio More stations that have converted to HD Radio can hear their digital signals now that the first commercial receivers have arrived at facilities ...

Joshua R. Smith receives funding from the National Science Foundation, the National Institutes of Health, the Department of Energy, the Department of Defense Medical Command, DARPA, Bosch, and Amazon.

We may receive a commission on purchases made from links. The transmitter converts the digital HDMI signal it gets from the source into a radio frequency signal, which is then broadcast wirelessly ...

In a special report late last year we explored the fairly recent discovery of inadvertent “capture” of out-of-market HD digital radio signals by receivers tuned to local stations on the same frequency ...