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hdtv antennas

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1) "Hdtv" -- As to hdtv antennas HDTV Function: abbreviation high-definition television Pronunciation Symbols Projection screen in a home theater, displaying a high-definition television image. Projection screen in a home theater, displaying a high-definition television image. High-definition television (HDTV) is a digital television broadcasting system with a significantly higher resolution than traditional formats (NTSC, SECAM, PAL). While some early analog HDTV formats were broadcast in Europe and Japan, HDTV is usually broadcast digitally, because digital television (DTV) broadcasting requires much less bandwidth. HDTV technology was first introduced in the US during the 1990s by a group of electronics companies called the Digital HDTV Grand Alliance [1] [2]. In the 2000s, a number of high-definition television standards are competing for the still-developing niche markets. Current HDTV standards are defined by the International Telecommunication Union (ITU-R BT.709) as 1080 active interlace or progressive scan lines, or 720 progressive scan lines, using a 16:9 aspect ratio. HDTV is also capable of "theater-quality" audio because it uses the Dolby Digital (AC-3) format to support "5.1" surround sound. The term "high-definition" can refer to the resolution specifications themselves, or more loosely to media capable of similar sharpness, such as photographic film. In 2007, 24 million US households have HDTVs. However, only half are set up to actually receive HDTV programming[3] as some consumers are not aware that they must get special receivers to get HDTV from cable, or use HDTV tuners to receive over-the-air broadcasts, and some are planning to use it in the future. 1 How to receive HDTV 2 HDTV vs film 3 Notation 2) "Antennas" -- As to hdtv antennas an·ten·na Pronunciation: an-'te-n& Function: noun Inflected Form(s): plural an·ten·nae /-(")nE /; or -nas Etymology: Medieval Latin, from Latin, sail yard 1 plural -nae : one of a pair of slender movable segmented sensory organs on the head of insects, myriapods, and crustaceans -- see INSECT illustration 2 : a usually metallic device (as a rod or wire) for radiating or receiving radio waves 3 antennae plural : a special sensitivity or receptiveness <his political antennae proved to be shrewder than ever -- Erich Segal> - an·ten·nal /-'te-n&l/ adjective Pronunciation Symbols A Yagi-Uda beam antenna Short Wave "Curtain" Antenna (Moosbrunn, Austria) A building rooftop supporting numerous dish and sectored mobile telecommunications antennas (Doncaster, Victoria, Australia) An antenna or aerial is an arrangement of aerial electrical conductors designed to transmit or receive radio waves which is a class of electromagnetic waves. In other words, antennas basically convert radio frequency electrical currents into electromagnetic waves and vice versa. Antennas are used in systems such as radio and television broadcasting, point-to-point radio communication, radar, and space exploration. Antennas usually work in air or outer space, but can also be operated under water or even through soil and rock at certain frequencies for short distances. Physically, an antenna is an arrangement of conductors that generate a radiating electromagnetic field in response to an applied alternating voltage and the associated alternating electric current, or can be placed in an electromagnetic field so that the field will induce an alternating current in the antenna and a voltage between its terminals. Some antenna devices (parabola, horn antenna) just adapt the free space to another type of antenna. Antennas were first used in 1888 by Heinrich Hertz (1857-1894) to prove the existence of electromagnetic waves predicted by the theory of James Clerk Maxwell. He even placed the emitter dipole in the focal point of a parabolic reflector. He published his work and installation drawings in Annalen der Physik und Chemie (vol. 36, 1889). 1 Terminology 2 Overview 3 Antenna parameters 3.1 Resonant frequency 3.2 Gain 3.3 Bandwidth Further Data On Term for hdtv antennas Internet users who seek hdtv antennas often also seach for: hdtv pci, hdtv, antennas, hdtv, antennas, sony, hdtv, widescreen, hdtv, forums, hdtv, comparison, review, hdtv, hdtv, review, hdtv, broadcasts, hdtv, reviews, hdtv, program, hdtv, pci Regularly Occuring Typos with hdtv antennas include: dhtv htdv hdvt dtv htv hdv hdt ydtv gdtv jdtv bdtv ndtv hstv hxtv hctv hftv hetv httv hdrv hdfv hdgv hdyv hdtc hdtf hdtg hdtb natennas atnennas anetnnas antnenas antennas antenans antennsa ntennas atennas anennas antnnas antenas antenas antenns antenna qntennas sntennas zntennas entennas intennas ontennas untennas abtennas ahtennas ajtennas amtennas anrennas anfennas angennas anyennas antwnnas antsnnas antdnnas antrnnas antannas antinnas antonnas antunnas antebnas antehnas antejnas antemnas antenbas antenhas antenjas antenmas antennqs antennss antennzs antennes antennis antennos antennus antennaa antennaw antennad antennax antennaz Commonly appearing connections are : helios airline, hedonism 3 jamaica, heavenly valley, heating blanket, heater core, heat tracing, health industry, health food stores, healing visions, headband magnifier, head shavers, hayward valves, hawthorne inn salem, hawley realty, hawaiian themed parties, hawaiian food, hauses, hastings real estate, hartwell georgia, harley davidson aftermarket, harland, hardeeville Similar searches have yielded these phrases hdtv antennas: hdtv antennas, hdtv antennas, sony hdtv widescreen, hdtv forums, hdtv comparison, review hdtv, hdtv review, hdtv broadcasts, hdtv reviews, hdtv program Certain copy here hdtv antennas made available through Wikipedia and the GNU Free Documentation License.