When broadcasting was in its infancy, amplitude modulation (AM) was the principal modulation system being researched and developed. Once efficient generation of useful RF signals was discovered and ...

Greg Manfroi of WIUM/WIUW, Western Illinois University, Macomb, IL, sent us this idea on a construction method for the shielded-loop AM antenna. Start with the electrical specifications as described ...

This circuit shows an active antenna that can be used for AM, FM, and shortwave (SW). On the shortwave band this active antenna is comparable to a 20 to 30 foot wire antenna. This circuit is designed ...

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-SEE ...

While we can’t argue that FM has superior audio quality and digital streaming allows even higher quality in addition to worldwide access, there’s still something magic about hearing a weak and fading ...

This simple little circuit can be used for AM, FM, and Shortwave(SW). On the shortwave band this active antenna is comparable to a 20 to 30 foot wire antenna. It is further more designed to be used on ...

Comprod Communications Ltd. offers one of the only full band 136-174 MHz disguise AM/FM antennas in the world at 1.5 VSWR throughout the entire band. Comprod antennas are indistinguishable from the ...