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.

Do you listen to AM radio? I do. And as it turns out millions of others do to, despite the growing number of competitors to conventional broadcast radio. AM radio used to be the only entertainment we ...

Amateur radio is the only hobby that offers its licensed operators the chance to legally design, build, and operate high power radio transceivers connected to unlimited antenna arrays for the purpose ...

AUSTIN, Texas “” Fans of AM/FM radio wanting to enjoy improved sound need not pay for satellite digital radio or wait for the introduction of land-based digital radio broadcasts. Motorola's ...