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WTSF
WTSF (channel 61) is a religious television station licensed to Ashland, Kentucky, United States, serving the Huntington–Charleston, West Virginia market as an owned-and-operated station of the Daystar Television Network. The station's studios are located on Bath Avenue in Ashland, and its transmitter is located on a very short tower in Huntington's Rotary Park. History WTSF signed on as a commercial independent television station in September 1982. However, it was not successful and was soon donated to a local religious group. It continued as such until 2003 when the station was sold to the Daystar national charismatic Christian network and, with a few exceptions, ended local programming. While it was locally produced, the bulk of the channel's programming consisted of fundraising to continue broadcasting. Technical information Subchannels The station's digital signal is multiplexed: Analog-to-digital conversion WTSF shut down its analog signal, over UHF channel 61, on Ju ...
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Ashland, Kentucky
Ashland is a home rule-class city in Boyd County, Kentucky, United States. The largest city in Boyd County, Ashland is located upon a southern bank of the Ohio River at the state border with Ohio and near West Virginia. The population was 21,625 at the 2020 census. Ashland is a principal city of the Huntington-Ashland metropolitan area, referred to locally as the "Tri-State area", home to 359,862 residents as of 2020. Ashland serves as an important economic and medical center for northeastern Kentucky. History Ashland dates back to the migration of the Poage family from the Shenandoah Valley via the Cumberland Gap in 1786. They erected a homestead along the Ohio River and named it Poage's Landing. Also called Poage Settlement, the community that developed around it remained an extended-family affair until the mid-19th century.''A History of Ashland, Kentucky, 1854–2004''. Ashland Bicentennial Committee. 2004. January 2, 2007. In 1854, the city name was changed to Ashland, ...
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Huntington, West Virginia
Huntington is a city in Cabell and Wayne counties in the U.S. state of West Virginia. It is the county seat of Cabell County, and the largest city in the Huntington–Ashland metropolitan area, sometimes referred to as the Tri-State Area. A historic and bustling city of commerce and heavy industry, Huntington has benefited from its location on the Ohio River at the mouth of the Guyandotte River. It is home to the Port of Huntington Tri-State, the second-busiest inland port in the United States. As of the 2020 census, its metro area is the largest in West Virginia, spanning seven counties across three states and having a population of 359,862. Huntington is the second-largest city in West Virginia, with a population of 46,842 at the 2020 census. Both the city and metropolitan area declined in population from the 2010 census, a trend that has been ongoing for six decades as Huntington has lost over 40,000 residents in that time frame. Surrounded by extensive natural resources, ...
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Charleston, West Virginia
Charleston is the capital and List of cities in West Virginia, most populous city of West Virginia. Located at the confluence of the Elk River (West Virginia), Elk and Kanawha River, Kanawha rivers, the city had a population of 48,864 at the 2020 United States census, 2020 census and an estimated population of 48,018 in 2021. The Charleston, West Virginia metropolitan area, Charleston metropolitan area as a whole had an estimated 255,020 residents in 2021. Charleston is the center of government, commerce, and industry for Kanawha County, West Virginia, Kanawha County, of which it is the county seat. Early industries important to Charleston included salt and the first natural gas well. Later, coal became central to economic prosperity in the city and the surrounding area. Today, trade, utilities, government, medicine, and education play central roles in the city's economy. The first permanent settlement, Fort Morris, was built in fall 1773 by William Morris (pioneer), William M ...
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Very High Frequency
Very high frequency (VHF) is the ITU designation for the range of radio frequency electromagnetic waves ( radio waves) from 30 to 300 megahertz (MHz), with corresponding wavelengths of ten meters to one meter. Frequencies immediately below VHF are denoted high frequency (HF), and the next higher frequencies are known as ultra high frequency (UHF). VHF radio waves propagate mainly by line-of-sight, so they are blocked by hills and mountains, although due to refraction they can travel somewhat beyond the visual horizon out to about 160 km (100 miles). Common uses for radio waves in the VHF band are Digital Audio Broadcasting (DAB) and FM radio broadcasting, television broadcasting, two-way land mobile radio systems (emergency, business, private use and military), long range data communication up to several tens of kilometers with radio modems, amateur radio, and marine communications. Air traffic control communications and air navigation systems (e.g. VOR and ILS) wo ...
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Ultra High Frequency
Ultra high frequency (UHF) is the ITU designation for radio frequency, radio frequencies in the range between 300 megahertz (MHz) and 3 gigahertz (GHz), also known as the decimetre band as the wavelengths range from one meter to one tenth of a meter (one decimeter). Radio waves with frequencies above the UHF band fall into the super-high frequency (SHF) or microwave frequency range. Lower frequency signals fall into the VHF (very high frequency) or lower bands. UHF radio waves propagate mainly by Line-of-sight propagation, line of sight; they are blocked by hills and large buildings although the transmission through building walls is strong enough for indoor reception. They are used for UHF television broadcasting, television broadcasting, cell phones, satellite communication including GPS, personal radio services including Wi-Fi and Bluetooth, walkie-talkies, cordless phones, satellite phones, and numerous other applications. The Institute of Electrical and Electronics ...
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Display Resolution
The display resolution or display modes of a digital television, computer monitor or display device is the number of distinct pixels in each dimension that can be displayed. It can be an ambiguous term especially as the displayed resolution is controlled by different factors in cathode ray tube (CRT) displays, flat-panel displays (including liquid-crystal displays) and projection displays using fixed picture-element (pixel) arrays. It is usually quoted as ', with the units in pixels: for example, ' means the width is 1024 pixels and the height is 768 pixels. This example would normally be spoken as "ten twenty-four by seven sixty-eight" or "ten twenty-four by seven six eight". One use of the term ''display resolution'' applies to fixed-pixel-array displays such as plasma display panels (PDP), liquid-crystal displays (LCD), Digital Light Processing (DLP) projectors, OLED displays, and similar technologies, and is simply the physical number of columns and rows of pixels creating ...
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Aspect Ratio (image)
The aspect ratio of an image is the ratio of its width to its height, and is expressed with two numbers separated by a colon, such as ''16:9'', sixteen-to-nine. For the ''x'':''y'' aspect ratio, the image is ''x'' units wide and ''y'' units high. Common aspect ratios are 1.85:1 and 2.39:1 in cinematography, 4:3 and 16:9 in television photography, and 3:2 in still photography. Some common examples The common film aspect ratios used in cinemas are 1.85:1 and 2.39:1.The 2.39:1 ratio is commonly labeled 2.40:1, e.g., in the American Society of Cinematographers' ''American Cinematographer Manual'' (Many widescreen films before the 1970 SMPTE revision used 2.35:1). Two common videographic aspect ratios are 4:3 (1.:1), the universal video format of the 20th century, and 16:9 (1.:1), universal for high-definition television and European digital television. Other cinema and video aspect ratios exist, but are used infrequently. In still camera photography, the most common aspect ra ...
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720p
720p (1280×720 px; also called HD ready, standard HD or just HD) is a progressive HDTV signal format with 720 horizontal lines/1280 columns and an aspect ratio (AR) of 16:9, normally known as widescreen HDTV (1.78:1). All major HDTV broadcasting standards (such as SMPTE 292M) include a 720p format, which has a resolution of 1280×720; however, there are other formats, including HDV Playback and AVCHD for camcorders, that use 720p images with the standard HDTV resolution. The frame rate is standards-dependent, and for conventional broadcasting appears in 50 progressive frames per second in former PAL/SECAM countries (Europe, Australia, others), and 59.94 frames per second in former NTSC countries (North America, Japan, Brazil, others). The number ''720'' stands for the 720 horizontal scan lines of image display resolution (also known as 720 pixels of vertical resolution). The ''p'' stands for progressive scan, i.e. non-interlaced. When broadcast at 60 frames per second, 720p ...
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480i
480i is the video mode used for standard-definition digital television in the Caribbean, Japan, South Korea, Taiwan, Philippines, Laos, Western Sahara, and most of the Americas (with the exception of Argentina, Paraguay, and Uruguay). The ''480'' identifies a vertical resolution of 480 lines, and the ''i'' identifies it as an interlaced resolution. The field rate, which is 60 Hz (or 59.94 Hz when used with NTSC color), is sometimes included when identifying the video mode, i.e. 480i60; another notation, endorsed by both the International Telecommunication Union in BT.601 and SMPTE in SMPTE 259M, includes the frame rate, as in 480i/30. The other common standard definition digital standard, used in the rest of the world, is 576i. It originated from the need for a standard to digitize analog TV (defined in BT.601) and is now used for digital TV broadcasts and home appliances such as game consoles and DVD disc players. Although related, it should not be confused with the an ...
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Virtual Channel
In most telecommunications organizations, a virtual channel is a method of remapping the ''program number'' as used in H.222 Program Association Tables and Program Mapping Tables to a channel number that can be entered via digits on a receiver's remote control. Often, "virtual channels" are implemented in digital television, helping users to find a desired channel easily, or easing the transition from analogue to digital broadcasting in general. The practice of assigning virtual channels is most common in those parts of the world where TV stations were colloquially named after the RF channel they were transmitting on ("Channel 6 Springfield"), as it was common in North America during the analogue TV era. In other parts of the world, such as Europe, virtual channels are rarely used or needed, as TV stations there identify themselves by name, not by RF channel or callsign. A "virtual channel" was first used for DigiCipher 2 in North America. It was later used and referred to as a l ...
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Digital Television Transition In The United States
The digital transition in the United States was the switchover from analog to exclusively digital broadcasting of terrestrial television programming. According to David Rehr, then president and CEO of the National Association of Broadcasters, this transition represented "the most significant advancement of television technology since color TV was introduced." For full-power TV stations, the transition went into effect on June 12, 2009, with stations ending regular programming on their analog signals no later than 11:59 p.m. local time that day. Under the Digital Transition and Public Safety Act of 2005, full-power broadcasting of analog television in the United States was initially planned to have ceased after February 17, 2009. To help U.S. consumers through the conversion, the Act also established a federally sponsored DTV Converter Box Coupon Program. The DTV Delay Act changed the mandatory analog cutoff date to June 12, 2009, although stations were permitted to cease ...
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Program And System Information Protocol
The Program and System Information Protocol (PSIP) is the MPEG (a video and audio industry group) and privately defined program-specific information originally defined by General Instrument for the DigiCipher 2 system and later extended for the ATSC digital television system for carrying metadata about each channel in the broadcast MPEG transport stream of a television station and for publishing information about television programs so that viewers can select what to watch by title and description. Its FM radio equivalent is Radio Data System (RDS). Function PSIP defines virtual channels and content ratings, as well as electronic program guides with titles and (optionally) descriptions to be decoded and displayed by the ATSC tuner. PSIP can also send: * the exact time referenced to UTC and GPS time; * the short name, which some stations use to publish their callsign. A maximum of seven characters can be used in a short name. PSIP is defined in ATSC standard A/65, the most rec ...
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