Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/UHF_television_broadcasting> ?p ?o }
- UHF_television_broadcasting abstract "UHF television broadcasting is the use of ultra high frequency (UHF) radio for over-the-air transmission of television signals. UHF frequencies are used for both analog and digital television broadcasts. UHF channels are typically given higher channel numbers, like the US arrangement with VHF channels 2 to 13, and UHF channels numbered 14 to 83.UHF broadcasting became possible due to the introduction of new high-frequency vacuum tubes developed by Philips immediately prior to the opening of World War II. These were used in experimental television receivers in the UK in the 1930s, and became widely used during the war as radar receivers. Surplus tubes flooded the market in the post-war era. At the same time, the development of color television was taking its first steps, initially based on incompatible transmission systems. The US FCC set aside a block of the then-unused and now-practical UHF frequencies for color television use. The introduction of the backward compatible NTSC standard led to these channels being released for any television use in 1952.Early receivers were generally less efficient at UHF band reception, and the signals are also subject to more environmental interference. Additionally, the signals are less susceptible to diffraction effects, which can improve reception at long range. UHF generally had less clear signals, and for some markets, became the home of smaller broadcasters who were not willing to bid on the more coveted VHF allocations. These issues are greatly reduced with digital television, and today most over-the-air broadcasts take place on UHF, while VHF channels are being retired. To avoid the appearance of disappearing channels, digital broadcast systems have a virtual channel concept, allowing stations to keep their original VHF channel number while actually broadcasting on a UHF frequency.Over time a number of former television channels in the upper UHF band have been re-designated for other uses. Channel 37 was never used in the US and some other countries in order to prevent interference with radio astronomy. In 1983, the US FCC removed channels 70 through 83 and reassigned them to Land Mobile Radio System. In 2009, with the move to digital television complete in the US, channels 52 through 69 were reallocated as the 700 MHz band for cellular telephone service. In 2011, Channel 51 was removed to prevent interference with the 700 MHz band. The US UHF channel map now includes channels 14 through 36 and 38 through 50.".
- UHF_television_broadcasting thumbnail Antena_de_televisión_digital_abierta.JPG?width=300.
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- UHF_television_broadcasting wikiPageOutDegree "311".
- UHF_television_broadcasting wikiPageRevisionID "707276430".
- UHF_television_broadcasting wikiPageWikiLink %22Weird_Al%22_Yankovic.
- UHF_television_broadcasting wikiPageWikiLink 1994_United_States_broadcast_TV_realignment.
- UHF_television_broadcasting wikiPageWikiLink 405-line_television_system.
- UHF_television_broadcasting wikiPageWikiLink 8TV_(Malaysia).
- UHF_television_broadcasting wikiPageWikiLink ABS-CBN.
- UHF_television_broadcasting wikiPageWikiLink AM_broadcasting.
- UHF_television_broadcasting wikiPageWikiLink ATSC_standards.
- UHF_television_broadcasting wikiPageWikiLink Adjacent_channel.
- UHF_television_broadcasting wikiPageWikiLink Airband.
- UHF_television_broadcasting wikiPageWikiLink All-Channel_Receiver_Act.
- UHF_television_broadcasting wikiPageWikiLink Amateur.
- UHF_television_broadcasting wikiPageWikiLink American_Broadcasting_Company.
- UHF_television_broadcasting wikiPageWikiLink Analog_television.
- UHF_television_broadcasting wikiPageWikiLink Analogue_terrestrial_television_in_the_United_Kingdom.
- UHF_television_broadcasting wikiPageWikiLink Atlanta.
- UHF_television_broadcasting wikiPageWikiLink Atlanta_Braves.
- UHF_television_broadcasting wikiPageWikiLink Atlanta_Hawks.
- UHF_television_broadcasting wikiPageWikiLink Australian_Broadcasting_Corporation.
- UHF_television_broadcasting wikiPageWikiLink Australian_and_New_Zealand_television_frequencies.
- UHF_television_broadcasting wikiPageWikiLink BBC_One.
- UHF_television_broadcasting wikiPageWikiLink BBC_Two.
- UHF_television_broadcasting wikiPageWikiLink Backward_compatibility.
- UHF_television_broadcasting wikiPageWikiLink Band_I.
- UHF_television_broadcasting wikiPageWikiLink Band_II.
- UHF_television_broadcasting wikiPageWikiLink Band_III.
- UHF_television_broadcasting wikiPageWikiLink Bit_error_rate.
- UHF_television_broadcasting wikiPageWikiLink Bridgeport,_Connecticut.
- UHF_television_broadcasting wikiPageWikiLink Broadcast_Enterprises_and_Affiliated_Media.
- UHF_television_broadcasting wikiPageWikiLink Broadcast_relay_station.
- UHF_television_broadcasting wikiPageWikiLink Brokered_programming.
- UHF_television_broadcasting wikiPageWikiLink Buffalo,_New_York.
- UHF_television_broadcasting wikiPageWikiLink Bulacan.
- UHF_television_broadcasting wikiPageWikiLink Burst_noise.
- UHF_television_broadcasting wikiPageWikiLink CBS.
- UHF_television_broadcasting wikiPageWikiLink CIII-DT.
- UHF_television_broadcasting wikiPageWikiLink CTV_Television_Network.
- UHF_television_broadcasting wikiPageWikiLink Cable_television.
- UHF_television_broadcasting wikiPageWikiLink Canadian_Broadcasting_Corporation.
- UHF_television_broadcasting wikiPageWikiLink Category:Television_technology.
- UHF_television_broadcasting wikiPageWikiLink Channel_1_(North_American_TV).
- UHF_television_broadcasting wikiPageWikiLink Channel_4.
- UHF_television_broadcasting wikiPageWikiLink Channel_5_(UK).
- UHF_television_broadcasting wikiPageWikiLink Chicago.
- UHF_television_broadcasting wikiPageWikiLink Clermont_Carn.
- UHF_television_broadcasting wikiPageWikiLink Color_television.
- UHF_television_broadcasting wikiPageWikiLink Commercial_broadcasting.
- UHF_television_broadcasting wikiPageWikiLink Concentration_of_media_ownership.
- UHF_television_broadcasting wikiPageWikiLink County_Donegal.
- UHF_television_broadcasting wikiPageWikiLink County_Dublin.
- UHF_television_broadcasting wikiPageWikiLink County_Longford.
- UHF_television_broadcasting wikiPageWikiLink County_Louth.
- UHF_television_broadcasting wikiPageWikiLink DWAC-TV.
- UHF_television_broadcasting wikiPageWikiLink DWCP-TV.
- UHF_television_broadcasting wikiPageWikiLink DWDB-TV.
- UHF_television_broadcasting wikiPageWikiLink DWKC-TV.
- UHF_television_broadcasting wikiPageWikiLink DZRJ-TV.
- UHF_television_broadcasting wikiPageWikiLink Delaware.
- UHF_television_broadcasting wikiPageWikiLink Denver.
- UHF_television_broadcasting wikiPageWikiLink Detroit.
- UHF_television_broadcasting wikiPageWikiLink Digital_audio_broadcasting.
- UHF_television_broadcasting wikiPageWikiLink Digital_television.
- UHF_television_broadcasting wikiPageWikiLink Digital_television_in_Canada.
- UHF_television_broadcasting wikiPageWikiLink Digital_television_transition.
- UHF_television_broadcasting wikiPageWikiLink Digital_television_transition_in_the_United_States.
- UHF_television_broadcasting wikiPageWikiLink Digital_terrestrial_television.
- UHF_television_broadcasting wikiPageWikiLink Digital_terrestrial_television_in_the_United_Kingdom.
- UHF_television_broadcasting wikiPageWikiLink Dipole_antenna.
- UHF_television_broadcasting wikiPageWikiLink Disruptive_innovation.
- UHF_television_broadcasting wikiPageWikiLink Distributed_transmission_system.
- UHF_television_broadcasting wikiPageWikiLink Dover,_Delaware.
- UHF_television_broadcasting wikiPageWikiLink DuMont_Laboratories.
- UHF_television_broadcasting wikiPageWikiLink DuMont_Television_Network.
- UHF_television_broadcasting wikiPageWikiLink E!.
- UHF_television_broadcasting wikiPageWikiLink Educational_television.
- UHF_television_broadcasting wikiPageWikiLink Electrical_engineering.
- UHF_television_broadcasting wikiPageWikiLink Electronics.
- UHF_television_broadcasting wikiPageWikiLink Erie,_Pennsylvania.
- UHF_television_broadcasting wikiPageWikiLink FM_broadcasting.
- UHF_television_broadcasting wikiPageWikiLink Far_East_Network.
- UHF_television_broadcasting wikiPageWikiLink Federal_Communications_Commission.
- UHF_television_broadcasting wikiPageWikiLink File:Primary_Network_Affiliates_May_1954.png.
- UHF_television_broadcasting wikiPageWikiLink Fort_Wayne,_Indiana.
- UHF_television_broadcasting wikiPageWikiLink Forward_error_correction.
- UHF_television_broadcasting wikiPageWikiLink Fourth_television_network.
- UHF_television_broadcasting wikiPageWikiLink Fox_Broadcasting_Company.
- UHF_television_broadcasting wikiPageWikiLink Frankfort,_Kentucky.
- UHF_television_broadcasting wikiPageWikiLink French_language.
- UHF_television_broadcasting wikiPageWikiLink Fresno,_California.
- UHF_television_broadcasting wikiPageWikiLink GMA_Network_Inc..
- UHF_television_broadcasting wikiPageWikiLink Gain_(electronics).
- UHF_television_broadcasting wikiPageWikiLink General_Post_Office.
- UHF_television_broadcasting wikiPageWikiLink HBO.
- UHF_television_broadcasting wikiPageWikiLink Harrisburg,_Pennsylvania.
- UHF_television_broadcasting wikiPageWikiLink Hartford,_Connecticut.