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Television antenna

Index Television antenna

A television antenna, or TV aerial, is an antenna specifically designed for the reception of over-the-air broadcast television signals, which are transmitted at frequencies from about 41 to 250 MHz in the VHF band, and 470 to 960 MHz in the UHF band in different countries. [1]

67 relations: Analog television, Antenna (radio), Antenna gain, Antenna rotator, Asphalt, Attic, Band I, Band III, Band IV, Band V, Band-pass filter, Bandwidth (signal processing), Bituminous waterproofing, Broadcast range, Coaxial cable, Digital television, Dipole antenna, Directional antenna, Drop (telecommunication), Electric power transmission, Electronic filter, Feed line, Galvanization, Ghosting (television), Ground (electricity), Ground plane, Guy-wire, Harmonic series (music), Hertz, High-definition television, Lightning arrester, Lightning rod, Local ordinance, Log-periodic antenna, Loop antenna, Main lobe, Monopole antenna, Omnidirectional antenna, Phase (waves), Planning permission, Plywood, Radiation pattern, Radio masts and towers, Reflective array antenna, Resonator, Rod Hull, Roof, Roof shingle, Satellite dish, Satellite television, ..., Servomechanism, Signal, Speed of light, Standing wave, Telecommunication, Telecommunications Act of 1996, Television channel frequencies, Television set, Terrestrial television, Transmission line, Transmitter, Twin-lead, Ultra high frequency, Very high frequency, Wavelength, Whip antenna, Yagi–Uda antenna. Expand index (17 more) »

Analog television

Analog television or analogue television is the original television technology that uses analog signals to transmit video and audio.

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Antenna (radio)

In radio, an antenna is the interface between radio waves propagating through space and electric currents moving in metal conductors, used with a transmitter or receiver.

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Antenna gain

In electromagnetics, an antenna's power gain or simply gain is a key performance number which combines the antenna's directivity and electrical efficiency.

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Antenna rotator

An antenna rotator is a device used to change the orientation, within the horizontal plane, of a directional antenna.

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Asphalt

Asphalt, also known as bitumen, is a sticky, black, and highly viscous liquid or semi-solid form of petroleum.

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Attic

An attic (sometimes referred to as a loft) is a space found directly below the pitched roof of a house or other building; an attic may also be called a sky parlor or a garret.

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Band I

Band I is a range of radio frequencies within the very high frequency (VHF) part of the electromagnetic spectrum.

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Band III

Band III is the name of the range of radio frequencies within the very high frequency (VHF) part of the electromagnetic spectrum from 174 to 240 megahertz (MHz).

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Band IV

Band IV is the name of a radio frequency range within the ultra high frequency part of the electromagnetic spectrum.

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Band V

Band V (meaning Band 5) is the name of a radio frequency range within the ultra high frequency part of the electromagnetic spectrum.

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Band-pass filter

A band-pass filter, also bandpass filter or BPF, is a device that passes frequencies within a certain range and rejects (attenuates) frequencies outside that range.

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Bandwidth (signal processing)

Bandwidth is the difference between the upper and lower frequencies in a continuous band of frequencies.

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Bituminous waterproofing

Bituminous waterproofing systems are designed to protect residential and commercial buildings.

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Broadcast range

A broadcast range (also listening range or listening area for radio, or viewing range or viewing area for television) is the service area that a broadcast station or other transmission covers via radio waves (or possibly infrared light, which is closely related).

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Coaxial cable

Cross-sectional view of a coaxial cable Coaxial cable, or coax (pronounced), is a type of electrical cable that has an inner conductor surrounded by a tubular insulating layer, surrounded by a tubular conducting shield.

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Digital television

Digital television (DTV) is the transmission of television signals, including the sound channel, using digital encoding, in contrast to the earlier television technology, analog television, in which the video and audio are carried by analog signals.

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Dipole antenna

In radio and telecommunications a dipole antenna or doublet is the simplest and most widely used class of antenna.

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Directional antenna

A directional antenna or beam antenna is an antenna which radiates or receives greater power in specific directions allowing increased performance and reduced interference from unwanted sources.

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Drop (telecommunication)

In a communications network, a drop is the portion of a device directly connected to the internal station facilities, such as toward a telephone switchboard, toward a switching center, or toward a telephone exchange.

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Electric power transmission

Electric power transmission is the bulk movement of electrical energy from a generating site, such as a power plant, to an electrical substation.

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Electronic filter

Electronic filters are circuits which perform signal processing functions, specifically to remove unwanted frequency components from the signal, to enhance wanted ones, or both.

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Feed line

In a radio antenna, the feed line (feedline), or feeder, is the cable or other transmission line that connects the antenna with the radio transmitter or receiver.

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Galvanization

Galvanization or galvanizing is the process of applying a protective zinc coating to steel or iron, to prevent rusting.

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Ghosting (television)

In television, a ghost is a replica of the transmitted image, offset in position, that is super-imposed on top of the main image.

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Ground (electricity)

In electrical engineering, ground or earth is the reference point in an electrical circuit from which voltages are measured, a common return path for electric current, or a direct physical connection to the earth.

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Ground plane

In electrical engineering, a ground plane is an electrically conductive surface, usually connected to electrical ground.

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Guy-wire

A guy-wire, guy-line, or guy-rope, also known as simply a guy, is a tensioned cable designed to add stability to a free-standing structure.

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Harmonic series (music)

A harmonic series is the sequence of sounds—pure tones, represented by sinusoidal waves—in which the frequency of each sound is an integer multiple of the fundamental, the lowest frequency.

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Hertz

The hertz (symbol: Hz) is the derived unit of frequency in the International System of Units (SI) and is defined as one cycle per second.

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High-definition television

High-definition television (HDTV) is a television system providing an image resolution that is of substantially higher resolution than that of standard-definition television, either analog or digital.

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Lightning arrester

A lightning arrester (alternative spelling lightning arrestor) (also called lightning diverter) is a device used on electric power systems and telecommunication systems to protect the insulation and conductors of the system from the damaging effects of lightning.

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Lightning rod

A lightning rod (US, AUS) or lightning conductor (UK) is a metal rod mounted on a structure and intended to protect the structure from a lightning strike.

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Local ordinance

A local ordinance is a law usually found in a code of laws for a political division smaller than a state or nation, i.e., a local government such as a municipality, county, parish, prefecture, etc.

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Log-periodic antenna

A log-periodic antenna (LP), also known as a log-periodic array or log-periodic aerial, is a multi-element, directional antenna designed to operate over a wide band of frequencies.

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Loop antenna

A loop antenna is a radio antenna consisting of a loop or coil of wire, tubing, or other electrical conductor usually fed by a balanced source or feeding a balanced load.

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Main lobe

In a radio antenna's radiation pattern, the main lobe, or main beam, is the lobe containing the higher power.

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Monopole antenna

A monopole antenna is a class of radio antenna consisting of a straight rod-shaped conductor, often mounted perpendicularly over some type of conductive surface, called a ground plane.

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Omnidirectional antenna

In radio communication, an omnidirectional antenna is a class of antenna which have an axis about which radio wave power is radiated symmetrically, and, upon that axis, is zero.

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Phase (waves)

Phase is the position of a point in time (an instant) on a waveform cycle.

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Planning permission

Planning permission or developmental approval refers to the approval needed for construction or expansion (including significant renovation) in some jurisdictions.

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Plywood

Plywood is a sheet material manufactured from thin layers or "plies" of wood veneer that are glued together with adjacent layers having their wood grain rotated up to 90 degrees to one another.

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Radiation pattern

In the field of antenna design the term radiation pattern (or antenna pattern or far-field pattern) refers to the directional (angular) dependence of the strength of the radio waves from the antenna or other source.

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Radio masts and towers

Radio masts and towers are, typically, tall structures designed to support antennas (also known as aerials) for telecommunications and broadcasting, including television.

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Reflective array antenna

In telecommunications and radar, a reflective array antenna is a class of directive antennas in which multiple driven elements are mounted in front of a flat surface designed to reflect the radio waves in a desired direction.

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Resonator

A resonator is a device or system that exhibits resonance or resonant behavior, that is, it naturally oscillates at some frequencies, called its resonant frequencies, with greater amplitude than at others.

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Rod Hull

Rodney Stephen "Rod" Hull (13 August 1935 – 17 March 1999) was an English comedian, best known as a popular entertainer on British television in the 1970s and 1980s.

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Roof

A roof is part of a building envelope.

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Roof shingle

Roof shingles are a roof covering consisting of individual overlapping elements.

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Satellite dish

A satellite dish is a dish-shaped type of parabolic antenna designed to receive or transmit information by radio waves to or from a communication satellite.

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Satellite television

Satellite television is a service that delivers television programming to viewers by relaying it from a communications satellite orbiting the Earth directly to the viewer's location.

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Servomechanism

In control engineering a servomechanism, sometimes shortened to servo, is an automatic device that uses error-sensing negative feedback to correct the action of a mechanism.

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Signal

A signal as referred to in communication systems, signal processing, and electrical engineering is a function that "conveys information about the behavior or attributes of some phenomenon".

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Speed of light

The speed of light in vacuum, commonly denoted, is a universal physical constant important in many areas of physics.

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Standing wave

In physics, a standing wave – also known as a stationary wave – is a wave which oscillates in time but whose peak amplitude profile does not move in space.

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Telecommunication

Telecommunication is the transmission of signs, signals, messages, words, writings, images and sounds or information of any nature by wire, radio, optical or other electromagnetic systems.

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Telecommunications Act of 1996

The Telecommunications Act of 1996 was the first significant overhaul of telecommunications law in more than sixty years, amending the Communications Act of 1934.

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Television channel frequencies

The following tables show the frequencies assigned to broadcast television channels in various regions of the world, along with the ITU letter designator for the system used.

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Television set

A television set or television receiver, more commonly called a television, TV, TV set, or telly, is a device that combines a tuner, display, and loudspeakers for the purpose of viewing television.

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Terrestrial television

Terrestrial or broadcast television is a type of television broadcasting in which the television signal is transmitted by radio waves from the terrestrial (Earth based) transmitter of a television station to a TV receiver having an antenna.

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Transmission line

In communications and electronic engineering, a transmission line is a specialized cable or other structure designed to conduct alternating current of radio frequency, that is, currents with a frequency high enough that their wave nature must be taken into account.

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Transmitter

In electronics and telecommunications, a transmitter or radio transmitter is an electronic device which produces radio waves with an antenna.

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Twin-lead

Twin-lead cable is a two-conductor flat cable used as a balanced transmission line to carry radio frequency (RF) signals.

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Ultra high frequency

Ultra high frequency (UHF) is the ITU designation for 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 decimeter.

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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 to one meter.

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Wavelength

In physics, the wavelength is the spatial period of a periodic wave—the distance over which the wave's shape repeats.

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Whip antenna

A whip antenna is an antenna consisting of a straight flexible wire or rod.

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Yagi–Uda antenna

A Yagi–Uda antenna, commonly known as a Yagi antenna, is a directional antenna consisting of multiple parallel elements in a line, usually half-wave dipoles made of metal rods.

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Redirects here:

Aerial (television), Digital antenna, Rooftop TV antenna, Rooftop antenna, Set-top tv antenna, TV aerial, TV antenna, Television aerial, Television antennas, Television reception, Television reception antenna, Tv antenna, Tv reception.

References

[1] https://en.wikipedia.org/wiki/Television_antenna

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