His adventure led him to use it to feed different tones to an AM radio, producing the all too familiar [Rick Astley] offering. There’s a fair bit of math that goes into getting the correct ...

SIMPLE, EASY-TO-USE FM/AM RADIO WITH HIGH QUALITY SOUND: Portable handheld radio with digital tuner has a simple, easy-to-use interface, with antennas that pick up both AM and FM signals EASY-TO ...

The problem is usually worse in stereo mode than in mono. A directional roof–mounted antenna can often help. AM signals are prone to interference by a variety of technical sources: other radio ...