Channel 73 was formerly used by a handful of television stations in North America which broadcast on 824-830 MHz. It was removed from television use in 1983 and the frequencies reassigned to analog mobile telephony.
North America is a continent entirely within the Northern Hemisphere and almost all within the Western Hemisphere. It is also considered by some to be a northern subcontinent of the Americas. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the west and south by the Pacific Ocean, and to the southeast by South America and the Caribbean Sea.
Advanced Mobile Phone System (AMPS) was an analog mobile phone system standard developed by Bell Labs, and officially introduced in the Americas on October 13, 1983, Israel in 1986, Australia in 1987, Singapore in 1988, and Pakistan in 1990. It was the primary analog mobile phone system in North America through the 1980s and into the 2000s. As of February 18, 2008, carriers in the United States were no longer required to support AMPS and companies such as AT&T and Verizon Communications have discontinued this service permanently. AMPS was discontinued in Australia in September 2000, in Pakistan by October 2004,, in Israel by January 2010, and Brazil by 2010.
A mobile phone, cell phone, cellphone, or hand phone, sometimes shortened to simply mobile, cell or just phone, is a portable telephone that can make and receive calls over a radio frequency link while the user is moving within a telephone service area. The radio frequency link establishes a connection to the switching systems of a mobile phone operator, which provides access to the public switched telephone network (PSTN). Modern mobile telephone services use a cellular network architecture, and, therefore, mobile telephones are called cellular telephones or cell phones, in North America. In addition to telephony, 2000s-era mobile phones support a variety of other services, such as text messaging, MMS, email, Internet access, short-range wireless communications, business applications, video games, and digital photography. Mobile phones offering only those capabilities are known as feature phones; mobile phones which offer greatly advanced computing capabilities are referred to as smartphones.
As higher frequencies were less able to diffract around terrestrial obstacles, very few stations originated on channel 73. The channel was available when the UHF TV band opened in 1953, but the few who did use UHF 73 initially soon moved to lower frequencies or went dark:
- WFMJ-TV (NBC Youngstown, Ohio) was launched on March 8, 1953 on channel 73. The station moved to its current channel, 21, on August 7, 1954.
- WLOK-TV in Lima, Ohio broadcast on channel 73 from April 18, 1953 until December 8, 1954. On April 24, 1955 the station became WIMA-TV, moving to Channel 35. It is now WLIO, digital VHF 8. [1] [2]
- WTVU 73 in Scranton, Pennsylvania originally broadcast from August 17, 1953 to July 1, 1955 (1kW TPO) as an independent and (very briefly) as a DuMont affiliate; it is no longer operational.
WFMJ-TV, virtual channel 21, is a dual NBC/CW-affiliated television station licensed to Youngstown, Ohio, United States. The station is owned by WFMJ Television, Inc. WFMJ-TV's studios are located on West Boardman Street in downtown Youngstown, and its transmitter is based in the city's Lansingville neighborhood.
The National Broadcasting Company (NBC) is an American English-language commercial terrestrial radio and television networks that is a flagship property of NBCUniversal, a subsidiary of Comcast. The network is headquartered at 30 Rockefeller Plaza in New York City, with additional major offices near Los Angeles, Chicago and Philadelphia. The network is one of the Big Three television networks. NBC is sometimes referred to as the "Peacock Network", in reference to its stylized peacock logo, introduced in 1956 to promote the company's innovations in early color broadcasting. It became the network's official emblem in 1979.
Youngstown is a city in the U.S. state of Ohio, and the county seat of Mahoning County. According to the 2010 United States Census, Youngstown had a city proper population of 66,982, making it the 9th-largest city in Ohio. Youngstown is the mainstay of the Youngstown-Warren-Boardman, OH-PA Metropolitan Statistical Area, with a population of 565,773; this makes it the 105th-largest metropolitan area in the United States, and the 7th-largest in Ohio.
For much of the history of UHF TV broadcasting in the United States, channel 70–83 served primarily as a "translator band" for repeater transmitters filling gaps in coverage for existing stations:
The United States of America (USA), commonly known as the United States or simply America, is a country comprising 50 states, a federal district, five major self-governing territories, and various possessions. At 3.8 million square miles, the United States is the world's third or fourth largest country by total area and is slightly smaller than the entire continent of Europe. With a population of over 327 million people, the U.S. is the third most populous country. The capital is Washington, D.C., and the most populous city is New York City. Most of the country is located contiguously in North America between Canada and Mexico.
Channel 70 was removed from television use in 1983, but was formerly used by television stations in North America which broadcast on 806-812 MHz. In the United States, channels 70-83 served primarily as a "translator band" containing repeater transmitters to fill gaps in coverage for existing stations. Many are now defunct, the rest were to have been moved to lower frequencies:
Channel 83 was removed from television use in 1983. The highest frequency to have been used for NTSC-M terrestrial TV broadcasting, it was formerly used by a handful of television stations in North America which broadcast on 884-890 MHz. In the United States, channels 70–83 served primarily as a "translator band" for low-power repeater transmitters filling gaps in coverage for existing stations. Many are defunct, with the few still in existence now moved to lower frequencies:
- KTVX-TV (ABC Salt Lake City) rebroadcaster K73BE Logan, Utah moved to K45GL channel 45. [3]
- KWGN-TV (CW Denver) rebroadcaster K73AF Rawlins, Wyoming moved to K56AV channel 56.
- KKTV (CBS Colorado Springs) rebroadcaster K73BV Springfield, Colorado moved to K66CW channel 66.
- KNME-TV (PBS Albuquerque) rebroadcaster K73AL Truth or Consequences, New Mexico moved to K17BH channel 17.
- KOAT-TV (ABC Albuquerque) rebroadcaster K73CG Alamogordo, New Mexico moved to K34CR channel 34.
- KOCO-TV (ABC Oklahoma City) rebroadcaster K73BJ Mooreland, Oklahoma moved to K63CF channel 63.
- KSAZ-TV (CBS Phoenix) rebroadcaster K73CD Flagstaff, Arizona moved to K48GI channel 48.
- KREM-TV (CBS Spokane) rebroadcaster K73AP Quincy, Washington moved to K21AJ channel 21.
- KTCA-TV (PBS Minneapolis-St. Paul) rebroadcaster K73AI Redwood Falls, Minnesota moved to W64AC channel 64.
- KVAL-TV (CBS Eugene) rebroadcaster K73AQ Florence, Oregon moved to K58CW channel 58.
- KVII-TV (ABC Amarillo) rebroadcaster K73BK Gruver, Texas moved to K42CF channel 42.
- KXLY-TV (ABC Spokane) rebroadcaster K73BA East Wenatchee, Washington moved to K53DN channel 53.
- WITF-TV (PBS Harrisburg) rebroadcaster W73AH Chambersburg, Pennsylvania moved to W38AN channel 38.
- WNEP-TV (ABC Scranton) rebroadcaster W73AC Clarks Summit, Pennsylvania moved to W14CO channel 14.
The American Broadcasting Company (ABC) is an American commercial broadcast radio and television networks that is a subsidiary of the Disney Media Networks division of The Walt Disney Company. The network is headquartered in Burbank, California, on Riverside Drive, directly across the street from Walt Disney Studios and adjacent to the Roy E. Disney Animation Building. The network's secondary offices, and headquarters of its news division, is in New York City, New York, at their broadcast center at 77 West 66th Street in the Upper West Side of Manhattan.
Logan is a city in Cache County, Utah, United States. The 2010 census recorded the population was 48,174, with an estimated population of 51,619 in 2018. By 2050 the population of Logan is expected to double. Logan is the county seat of Cache County and the principal city of the Logan metropolitan area, which includes Cache County and Franklin County, Idaho. The Logan metropolitan area contained 125,442 people as of the 2010 census. and was declared by Morgan Quitno in 2005 and 2007 to be the safest in the United States in those years. Logan also is the location of the main campus of Utah State University.
KWGN-TV, virtual channel 2, is a CW-affiliated television station licensed to Denver, Colorado, United States. The station is owned by Nexstar Media Group, as part of a duopoly with Fox affiliate KDVR, channel 31. The two stations share studios on East Speer Boulevard in Denver's Speer neighborhood ; KWGN-TV's transmitter is located atop Lookout Mountain, near Golden. The station's signal is relayed on three low-power translators: K14JZ-D in Peetz, K49EX-D in Anton and K31IQ-D in Sterling.
In Auburn, Indiana, Three Angels Broadcasting Network affiliate W26DH-D numbers its digital subchannels in a 73.x virtual channel pattern; the station has no ties to the historical UHF Channel 73.
Auburn is a city in DeKalb County, Indiana, United States. The population was 13,086 at the 2010 census. Founded in 1836 by Wesley Park (1811–1868), the city is the county seat of DeKalb County. Auburn is also known as Home of the Classics.
The Three Angels Broadcasting Network (3ABN), is an American nonprofit Seventh-day Adventist television and radio network broadcasting Christian and health-oriented programming, based in West Frankfort, Illinois.
In broadcasting, digital subchannels are a method of transmitting more than one independent program stream simultaneously from the same digital radio or television station on the same radio frequency channel. This is done by using data compression techniques to reduce the size of each individual program stream, and multiplexing to combine them into a single signal. The practice is sometimes called "multicasting".
