In 1938, the director of the Signal Corps Laboratories at Fort Monmouth, New Jersey, Col. Roger B. Colton, transformed ...

The WLZR-AM Radio Signal in Brevard County, on air since 1968, will be pulled off the airways effective immediately.

FM radio works the same way that AM radio works. The difference is in how the carrier wave is modulated, or altered. With AM radio, the amplitude, or overall strength, of the signal is varied to ...

On Thursday, March 13, at 5:44 p.m., the official signal was activated at Christwood Retirement Community near Covington as ...

At its best, HD Radio pushes FM sound quality closer to that of CDs and makes AM broadcasts resemble those of analog FM. Moreover, the HD signal from AM stations is in stereo, and there is no ...

NPR's Michel Martin speaks with Senator Mark Kelly (D-Ariz.) about the revelation that top intelligence officials discussed ...

Portland community radio station XRAY.FM has bought the rights to its 107.1 FM signal after years of renting the frequency, cementing its place in Portland’s media landscape.