Frequency modulation

In telecommunications and signal processing, frequency modulation (FM) is the encoding of information in a carrier wave by varying the instantaneous frequency of the wave. This contrasts with amplitude modulation, in which the amplitude of the carrier wave varies, while the frequency remains constant.

In analog frequency modulation, such as FM radio broadcasting of an audio signal representing voice or music, the instantaneous frequency deviation, the difference between the frequency of the carrier and its center frequency, is proportional to the modulating signal.

Digital data can be encoded and transmitted via FM by shifting the carrier's frequency among a predefined set of frequencies representing digits - for example one frequency can represent a binary 1 and a second can represent binary 0. This modulation technique is known as frequency-shift keying (FSK). FSK is widely used in modems and fax modems, and can also be used to send Morse code.Radioteletype also uses FSK.

WMCX

WMCX (88.9 FM, The X 88.9) is a New Jersey college radio station with a Modern Rock format. The studios and production facilities are located at Monmouth University in West Long Branch, New Jersey.

History

WMCX began broadcasting on 88.1 MHz from Monmouth University on May 2, 1974. At 10 watts, the station could only be heard within a radius of 2–3 miles. In September 1987, the station moved to 88.9 MHz and increased power to 1,000 watts. Today, the station has a broadcast radius of approximately 15 miles in various towns located in Monmouth and Ocean counties in New Jersey. The station has more than 500,000 listeners both domestically and internationally thanks largely to the "listen live" streaming radio feature on their official web site. This feature enables listeners to tune into the station from anywhere in the world at anytime. In addition to playing college rock, WMCX is also home to a news department and the only home of Monmouth Football, Basketball, and Baseball games on the radio.

F&M

F&M may refer to:

See also