Frequency Modulation (FM) sounds simple at first, ... Digital radio and multiplexing go back to the 30’s. The inventor got ripped off, it helped win WW2 but he had to jump out a window.

Radio frequency (RF) refers to the part of the electromagnetic spectrum where electromagnetic waves can be generated by alternating current fed to an antenna. It spans from around 3 kHz to 300 GHz ...

Frequency modulation changes the pitch of a carrier frequency and is completely run by Clear Channel. Amateur radio operators are familiar with dozens of other modulation schemes, but there’s ...

IN this method the frequency of a radio-frequency oscillator is modulated by a sinusoidal audio-frequency voltage, and the resultant radio-frequency voltage is applied to a transmitting quartz ...

A starry-eyed few thousand owners of the latest fangled radio sets in areas around New York City, Boston, Washington, Columbus (Ohio), Chicago and Milwaukee, nowadays enjoy radio entertainment that ...

Acacia Subsidiary Acquires Radio Frequency Modulation Technology Patents for Use in Mobile Devices NEWPORT BEACH, Calif.--(BUSINESS WIRE)-- Acacia Research Corporation (NAS: ACTG) announced today ...