At the most basic level, AM radio works by generating a carrier wave with an oscillator, and then modulating the amplitude with an audio signal. Around these parts, the venerable 555 timer is ...

Compared to the simple diode needed to demodulate AM radio signals ... width square wave pulse at a set point in the received FM signal’s waveform, usually at the zero-crossing point.

With AM radio, the amplitude, or overall strength, of the signal is varied to incorporate the sound information. With FM, the frequency (the number of times each second that the current changes ...

Some debate remains on whether driver safety is impacted by losing access to AM radio stations. A growing number of ...

Ways To Improve Your AM Reception Car radios generally receive AM radio best. The signal quality does vary somewhat from car to car and is affected by passing under power lines, moving around ...

PORTLAND, Maine (AP) — The signal might be fading ... The prevalence of AM broadcast radio has dipped in recent decades as more listeners turn to options such as satellite radio and podcasts ...

Certain new Tesla and BMW models do not have a built-in AM radio, and Europe is slowly pulling the plug on AM broadcasting. AM radio may become an historical footnote; however, in the U.S., there ...

The Federal Communications Commission regulates requirements for a broadcast-quality signal if AM radio is included, industry officials noted. The other audio systems in the car, including FM and ...

Carrier Wave Generator The Wave Generator creates a high-frequency radio signal. The frequency of this signal is many times greater than the frequency of the audio wave. This signal will "carry ...