Varying the voltage of a carrier or a direct current in order to transmit analog or digital data. Amplitude modulation (AM) is the oldest method of transmitting human voice electronically. In an ...

Harris has developed its first AM transmitter specifically for HD Radio at lower power levels. Ky Luu spoke about advanced pulse duration modulation during the Broadcast Engineering session titled, ...

A new modulation technique for AM broadcasting is being touted by industry pioneer Mike Dorrough. He says the Advanced Modulation System can increase carrier modulation to 200%, improving the ...

Belar Electronics has unveiled its latest innovations for analog and digital AM modulation, as the RF monitoring firm has completed its updates for its legacy AMMA-2. The company says this allows for ...

A crystal radio is a common enough science fair project, but the problem is, there isn’t much on anymore. The answer is, of course, obvious: build your own AM transmitter, too. AM modulation isn’t ...