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WYDN
WYDN (channel 48) is a religious television station licensed to Lowell, Massachusetts, United States, broadcasting the Daystar network to the Boston area. It is owned and operated by the Educational Public TV Corporation, a subsidiary of Daystar sister company Word of God Fellowship, Inc. WYDN's studios are co-located with those of local public access channel Dedham TV on Sprague Street in Dedham, and it shares transmitter facilities with Concord, New Hampshire–licensed Ion Television station WPXG-TV (channel 21) on Fort Mountain near Epsom, New Hampshire. History The station first signed on the air on May 5, 1999, as an affiliate of Prime Time Christian Broadcasting (now God's Learning Channel) as a straight simulcast of KMLM in Odessa, Texas. Originally licensed to Worcester, Massachusetts, WYDN operated its analog transmitter atop Asnebumskit Hill in Paxton (a site which is and has been used by Worcester area FM and TV stations since FM pioneer Edwin Howard Armstron ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ion Television
Ion Television is an American broadcast television network owned by the Katz Broadcasting subsidiary of the E. W. Scripps Company. The network first began broadcasting on August 31, 1998, as Pax TV, focusing primarily on family-oriented entertainment programming. It rebranded as i: Independent Television (commonly referred to as "i") on July 1, 2005, converting into a general entertainment network featuring recent and older acquired programs. The network adopted its identity as Ion Television on January 29, 2007, and airs programming in daily binge blocks of one program, usually acquired procedural dramas. The network also carries some holiday specials and films before Christmas. Ion is available throughout most of the United States through its group of 44 owned-and-operated stations and 20 network affiliates, as well as through distribution on pay-TV providers and streaming services; since 2014, the network has also increased affiliate distribution in several markets through ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digital Subchannel
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". ATSC television United States The ATSC digital television standard used in the United States supports multiple program streams over-the-air, allowing television stations to transmit one or more subchannels over a single digital signal. A virtual channel numbering scheme distinguishes broadcast subchannels by appending the television channel number with a period digit (".xx"). Simultaneously, the suffix indicates that a television station offers additional programming streams. By convention, the suffix position ".1" is normally used to refer to the station's main digi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Must-carry
In cable television, governments apply a must-carry regulation stating that locally licensed television stations must be carried on a cable provider's system. North America Canada Under current CRTC regulations, the lowest tier of service on all Canadian television providers may not be priced higher than $25 per-month, and must include all local Canadian broadcast television channels, local legislative and educational services, and all specialty services that have 9(1)(h) must-carry status. All specialty channels licensed by the CRTC as a mainstream news channel must also be offered by all television providers, although they do not necessarily have to be on the lowest tier of service. In the mid-to-late 1970s, the CRTC implemented a rule that a cable system must carry a broadcast television station at no cost to the broadcaster so long as the transmitter emitted an equivalent isotropically radiated power of at least 5 watts. This CRTC rule may have changed over the years, but ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Needham, Massachusetts
Needham ( ) is a town in Norfolk County, Massachusetts. A suburb of Boston, its population was 32,091 at the 2020 U.S. Census. It is home of Olin College. History Early settlement Needham was first settled in 1680 with the purchase of a tract of land measuring by from Chief Nehoiden for the sum of 10 pounds, of land, and 40 shillings worth of corn. It was officially incorporated in 1711. Originally part of the Dedham Grant, Needham split from Dedham and was named after the town of Needham Market in Suffolk, England. Just 15 months after asking for their own church, 40 men living on the north side of the Charles River suddenly asked the General Court to separate them from Dedham. Their petition cited the inadequate services provided, namely schools and churches. They also said that, if they were simply to be made a precinct instead of a separate town, that they would suffer political reprisals. Dedham agreed that the services were inadequate and did not oppose the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WBZ-TV
WBZ-TV (channel 4) is a television station in Boston, Massachusetts, United States, airing programming from the CBS network. It is owned and operated by the network's CBS News and Stations division alongside independent station WSBK-TV (channel 38). Both stations share studios on Soldiers Field Road in the Allston–Brighton section of Boston. WBZ-TV's transmitter is located on Cedar Street in Needham, Massachusetts, on a tower site that was formerly owned by CBS and is now owned by American Tower Corporation (which is shared with transmitters belonging to sister station WSBK as well as WCVB-TV, WBTS-CD and WGBX-TV). History As an NBC affiliate (1948–1995) As the only television station that was built from the ground up by the Westinghouse Electric Corporation, WBZ-TV began operations 10 am at June 9, 1948, with test patterns. The station's dedicatory program aired at 6:30 pm and featured remarks from the Very Rev. Edwin Van Etten, Archbishop Richard Cushing, Rabbi Joshua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edwin Howard Armstrong
Edwin Howard Armstrong (December 18, 1890 – February 1, 1954) was an American electrical engineer and inventor, who developed FM (frequency modulation) radio and the superheterodyne receiver system. He held 42 patents and received numerous awards, including the first Medal of Honor awarded by the Institute of Radio Engineers (now IEEE), the French Legion of Honor, the 1941 Franklin Medal and the 1942 Edison Medal. He was inducted into the National Inventors Hall of Fame and included in the International Telecommunication Union's roster of great inventors. Armstrong attended Columbia University, and served as a professor there for most of his life. Early life Armstrong was born in the Chelsea district of New York City, the oldest of John and Emily (née Smith) Armstrong's three children. His father began working at a young age at the American branch of the Oxford University Press, which published bibles and standard classical works, eventually advancing to the position of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FM Broadcasting
FM broadcasting is a method of radio broadcasting using frequency modulation (FM). Invented in 1933 by American engineer Edwin Armstrong, wide-band FM is used worldwide to provide high fidelity sound over broadcast radio. FM broadcasting is capable of higher fidelity—that is, more accurate reproduction of the original program sound—than other broadcasting technologies, such as AM broadcasting. It is also less susceptible to common forms of interference, reducing static and popping sounds often heard on AM. Therefore, FM is used for most broadcasts of music or general audio (in the audio spectrum). FM radio stations use the very high frequency range of radio frequencies. Broadcast bands Throughout the world, the FM broadcast band falls within the VHF part of the radio spectrum. Usually 87.5 to 108.0 MHz is used, or some portion thereof, with few exceptions: * In the former Soviet republics, and some former Eastern Bloc countries, the older 65.8–74 MHz band ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paxton, Massachusetts
Paxton is a town in Worcester County, Massachusetts, United States. The population was 5,004 at the 2020 census. History Paxton was first settled by Europeans in 1749 and was officially incorporated in 1765. It was previously occupied by the Nipmuc tribe. The district of Paxton was originally taken from the towns of Leicester and Rutland, in nearly equal parts, and was incorporated February 12, 1765. Charles Paxton, marshal of the Admiralty Court, offered a church bell to the town if it was named after him; no such gift was ever made. The inhabitants soon commenced their plan for building a meeting house, and on the first day of April 1765, the town voted to build it. It was raised on 18 June 1766, and this is the frame of the present meeting house. In 1766, within two years of the incorporation of the town, the foundation of the present meeting house was laid, on what is now the common, near the flagstaff. The land was given by Seth Howe, from a piece of his pasture. David D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
