AM broadcasting is radio broadcasting using amplitude modulation (AM) transmissions. It was the first method developed for making audio radio transmissions, and is still used worldwide, primarily for medium wave transmissions, but also on the longwave and shortwave radio bands.
In radio, longwave, long wave or long-wave, and commonly abbreviated LW, refers to parts of the radio spectrum with wavelengths longer than what was originally called the medium-wave broadcasting band. The term is historic, dating from the early 20th century, when the radio spectrum was considered to consist of longwave (LW), medium-wave (MW), and short-wave (SW) radio bands. Most modern radio systems and devices use wavelengths which would then have been considered 'ultra-short'.
Radio broadcasting is the broadcasting of audio (sound), sometimes with related metadata, by radio waves to radio receivers belonging to a public audience. In terrestrial radio broadcasting the radio waves are broadcast by a land-based radio station, while in satellite radio the radio waves are broadcast by a satellite in Earth orbit. To receive the content the listener must have a broadcast radio receiver (radio). Stations are often affiliated with a radio network that provides content in a common radio format, either in broadcast syndication or simulcast, or both. Radio stations broadcast with several different types of modulation: AM radio stations transmit in AM, FM radio stations transmit in FM, which are older analog audio standards, while newer digital radio stations transmit in several digital audio standards: DAB, HD radio, DRM. Television broadcasting is a separate service that also uses radio frequencies to broadcast television (video) signals.
WHA is a non-commercial radio station, licensed since 1922 to the University of Wisconsin and located in Madison, Wisconsin. It serves as the flagship for the Wisconsin Public Radio talk-based "Ideas Network". WHA's programming is also broadcast by two low-powered FM translators, and by WERN FM's HD3 digital subchannel. The station airs a schedule of news and talk programs from Wisconsin Public Radio, NPR, American Public Media, Public Radio International, the Canadian Broadcasting Corporation and the BBC.
BBC Essex is the BBC's local radio station serving the county of Essex.
WRBC is the college radio station of Bates College, located in Lewiston, Maine and at 91.5 MHz on the FM dial. The WRBC studio is located in the basement of 31 Frye Street across from the student coffee house, The Ronj. The WRBC board of directors publish an online music blog called The Monkey.
Dartmouth Broadcasting began in 1924 when members of the amateur radio club obtained a federal license to broadcast on the AM band, at 1170 kHz, as WFBK. Later renamed WDCH, the station continued until the fall of 1925 when an inadvertent obscenity uttered over the air caused the college president, Ernest Martin Hopkins, to permanently shut it down. Radio finally returned to Dartmouth in 1941 due to the efforts of a group of determined students and younger faculty who persuaded Hopkins to give the students a second chance.
KUOM – branded Radio K – is a daytime-only, non-commercial educational college/alternative rock radio station licensed to serve Minneapolis, Minnesota. Owned by the University of Minnesota, Twin Cities, the station is operated by both faculty and students. Studios are located at the Rarig Center on the University of Minnesota campus.
FM broadcasting is a method of radio broadcasting that uses frequency modulation (FM) of the radio broadcast carrier wave. Invented in 1933 by American engineer Edwin Armstrong, wide-band FM is used worldwide to transmit high-fidelity sound over broadcast radio. FM broadcasting offers higher fidelity—more accurate reproduction of the original program sound—than other broadcasting techniques, such as AM broadcasting. It is also less susceptible to common forms of interference, having less static and popping sounds than are often heard on AM. Therefore, FM is used for most broadcasts of music and general audio. FM radio stations use the very high frequency range of radio frequencies.
WHUS is a non-commercial educational FM college radio station. It transmits with 4,400 watts on 91.7 MHz from the University of Connecticut (UConn) in Storrs to audiences in Connecticut, southern Massachusetts and western Rhode Island. WHUS operates 24 hours a day, 365 days a year as a community radio station that features members of the student body and the local community.
KZSU is a freeform FM radio station broadcasting from the campus of Stanford University in Stanford, California, United States.
Radio Glendon is a Canadian online radio station, which broadcasts on radio-glendon.ca in Toronto, Ontario. It is the campus radio station of the city's Glendon College, a campus of York University.
Greatest Hits Radio Lancashire is an Independent Local Radio station based in Manchester, England, owned and operated by Bauer as part of the Greatest Hits Radio network. It broadcasts to Lancashire and North West England.
CKWX is a commercial radio station in Vancouver, British Columbia, Canada. Owned by Rogers Radio, a division of Rogers Sports & Media, it broadcasts an news/talk radio format branded as CityNews 1130. CKWX's studios and offices are located at 2440 Ash Street in the Fairview neighbourhood of Vancouver.
KBPS is a high school radio station in Portland, Oregon, owned by Portland Public Schools, and run by Benson Polytechnic High School students enrolled in its radio broadcasting program. From its founding the station has been based on the Benson campus and staffed by its students.
Radio Caroline is a British radio station founded in 1964 by Ronan O'Rahilly and Alan Crawford initially to circumvent the record companies' control of popular music broadcasting in the United Kingdom and the BBC's radio broadcasting monopoly. Unlicensed by any government for most of its early life, it was a pirate radio station that never became illegal as such due to operating outside any national jurisdiction, although after the 1967 Marine Broadcasting Offences Act it became illegal for a British subject to associate with it.
WRUC is an independent educational college radio station, owned and operated by Union College in Schenectady, New York. The station transmits with an effective radiated power of 100 watts, providing coverage over an approximate 15-mile radius. WRUC also streams its programming on Internet radio. The station's offices and studios are located in the Reamer Campus Center on the Union College campus.
WKAR is an non-commercial public AM radio station, licensed to the trustees of Michigan State University (MSU) at East Lansing, Michigan. It is part of MSU's Broadcasting Services Division, along with WKAR-FM and WKAR-TV. Studios and offices are in the Communication Arts and Sciences Building, at the southeast corner of Wilson and Red Cedar Roads on the MSU campus.
University Radio Essex is a campus radio station at the University of Essex serving Wivenhoe Park in Colchester. It was one of the original university radio stations in the United Kingdom and with the other pioneering campus radio stations at York, Brunel, Loughborough, Sussex, Surrey the door was opened in the UK for campus radio.
