Second audio program (SAP), also known as secondary audio programming, is an auxiliary audio channel for analog television that can be broadcast or transmitted both over-the-air and by cable television. Used mostly for audio description or other languages, SAP is part of the multichannel television sound (MTS) standard originally set by the National Television Systems Committee (NTSC) in 1984 in the United States. The NTSC video format and MTS are also used in Canada and Mexico.
WXDU is a non-commercial campus radio station broadcasting a college radio format. Licensed to Durham, North Carolina, United States, the station serves the Research Triangle area. The station is owned by Duke University.
KUOM – branded Radio K – is a daytime-only, non-commercial, college radio station licensed to Minneapolis, Minnesota. Owned by the University of Minnesota, Twin Cities, the station is operated by students and faculty. It mainly airs alternative rock with other genres of music. The studios are in Rarig Center on the University of Minnesota campus.
Carrier current transmission, originally called wired wireless, employs guided low-power radio-frequency signals, which are transmitted along electrical conductors. The transmissions are picked up by receivers that are either connected to the conductors, or a short distance from them. Carrier current transmission is used to send audio and telemetry to selected locations, and also for low-power broadcasting that covers a small geographical area, such as a college campus. The most common form of carrier current uses longwave or medium wave AM radio signals that are sent through existing electrical wiring, although other conductors can be used, such as telephone lines.
WFIU is a public radio station broadcasting from Indiana University Bloomington (IUB) in Bloomington, Indiana, United States. The station is a member station of NPR, Public Radio International and American Public Media. Together with IUB-owned television station WTIU, it is known as Indiana Public Media. Studios are located in the Radio-Television Building on the IUB campus, and the transmitter is located at a site on South Sare Road in Bloomington. Seven translators broadcast WFIU and its second HD Radio subchannel, primarily in areas outside of the main transmitter's coverage area, including Terre Haute and Kokomo.
A travelers' information station (TIS), also called highway advisory radio (HAR) by the United States Department of Transportation, is a licensed low-powered non-commercial radio station, used to broadcast information to the general public, including for motorists regarding travel, destinations of interest, and situations of imminent danger and emergencies. They are commonly operated by transportation departments, national and local parks departments and historic sites, airport authorities, local governments, federal agencies, colleges and universities, hospitals and health agencies, and for special events and destinations.
KTXT-FM is a non-commercial educational college radio station licensed to Texas Tech University in Lubbock, Texas, United States. KTXT-FM is licensed to broadcast 35,000 watts of power to Lubbock and the surrounding South Plains of West Texas.
KTLK – branded News/Talk AM 1130 – is a commercial AM radio station licensed to Minneapolis, Minnesota. It broadcasts a Conservative talk radio radio format to the Twin Cities radio market and is owned by iHeartMedia, Inc. The radio studios are on Utica Avenue South in St. Louis Park.
WMBR is the Massachusetts Institute of Technology's student-run college radio station, licensed to Cambridge, Massachusetts, and broadcasting on 88.1 FM. It is all-volunteer and funded by listener donations and MIT funds. Both students and community members can apply for positions, and like many college radio stations, WMBR offers diverse programming that includes a broad range of musical genres as well as talk shows.
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.
WBGU is an American non-commercial, college radio station licensed to serve Bowling Green, Ohio, United States. The station, established in 1951, is owned and operated by Bowling Green State University.
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.
WNDE is a commercial radio station in Indianapolis, Indiana. It is owned by iHeartMedia with the broadcast license held by iHM Licenses, LLC. WNDE broadcasts a sports radio format, with some afternoon talk programs, including The Clay Travis and Buck Sexton Show.
Apex radio stations was the name commonly given to a short-lived group of United States broadcasting stations, which were used to evaluate transmitting on frequencies that were much higher than the ones used by standard amplitude modulation (AM) and shortwave stations. Their name came from the tall height of their transmitter antennas, which were needed because coverage was primarily limited to local line-of-sight distances. These stations were assigned to what at the time were described as "ultra-high shortwave" frequencies, between roughly 25 and 44 MHz. They employed amplitude modulation (AM) transmissions, although in most cases using a wider bandwidth than standard broadcast band AM stations, in order to provide high fidelity sound with less static and distortion.
WXSU-LP is the student-run radio station at Salisbury University in Salisbury, Maryland. The station, formerly known as WSUR, was forced to change call letters when registering with the FCC because of an existing television station with those call letters in Puerto Rico. WXSU-LP first went live to the Salisbury community in 2005 with a low power, 100 watt signal. The station currently operates during the Fall and Spring semesters from Late August to Mid-May.
KRKS is a commercial AM radio station licensed to Denver, Colorado. The station is owned and operated by Salem Media Group and it airs a Christian talk and teaching radio format. Its studios and offices are located on South Vaughn Way in Aurora, with the AM transmitter located on East 56th Avenue in North Washington. KRKS with co-owned KRKS-FM; together, are known as "The Word," but carry most programs at different times of the day.
WHP is a commercial AM radio station licensed to Harrisburg, Pennsylvania, serving the Harrisburg metropolitan area of South Central Pennsylvania. It broadcasts a talk radio format and is owned by iHeartMedia, Inc. The studios are on Corporate Circle in Harrisburg, off North Progress Avenue.
WONU is a non-commercial radio station licensed to Kankakee, Illinois, United States, and serving the region south of the Chicago metropolitan area. It is a non-profit, listener-supported station owned and operated by Olivet Nazarene University, which is located in Bourbonnais, Illinois. It airs a Christian Contemporary Music radio format.
WCVF-FM is a radio station in Fredonia, New York. The station is licensed to the State University of New York at Fredonia. "CVF" stands for "Campus and Community Voice of Fredonia," the station's slogan. The station primarily features "alternative" rock, but includes an eclectic mix of genres at consistent times throughout the week. Listeners can catch blocks of Polka, Spanish, Blues, Jazz, Folk, Reggae, Hip Hop and anything in between. Live programs hosted by student and community jocks can be of any format/genre from talk, music, to radio drama. WCVF also covers local sports and includes live broadcasts/commentary for several Blue Devil teams. Our music director reports to College Music Journal for charting, and devotes time slots for new music sent to the station.
WEOS is a college radio station licensed to Geneva, New York, broadcasting primarily on 89.5 FM across the Finger Lakes region of New York. It also broadcasts on a smaller relay transmitter on 90.3FM in Geneva. The station is owned by The Colleges of the Seneca, Inc., the legal name of Hobart and William Smith Colleges. The board of trustees of the colleges are the owners, with the current President Mark Gearan as its chair.
