Amplitude modulation (AM) is by far the oldest form of modulation known. The first broadcast stations were AM, but even earlier, CW or continuous-wave signals with Morse code were a form of AM.

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 ...

Many of us still tune in to terrestrial radio for one reason or another, be it baseball games, talk radio, or classic rock. But do you know how the sound is transmitted to your receiver? This week, ...