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99 relations: Air traffic control, Airband, Amateur radio, Amplitude modulation, Analog television, Antenna array, Apex (radio band), Association of American Railroads, Australian and New Zealand television frequencies, Australian Broadcasting Corporation, Band I, Band II, Band III, Batwing antenna, BBC Two, Business band, Cable television, California Highway Patrol, Cellular network, Circular polarization, Collinear antenna array, Communications satellite, Compact disc, Cordless telephone, CSN International, Digital audio broadcasting, Digital radio in Australia, Digital television, Digital television transition, Directional antenna, Electromagnetic interference, Electromagnetic radiation, Federal Communications Commission, FM broadcast band, FM broadcasting, Frequency modulation, HAVE QUICK, Helical antenna, Hertz, High frequency, Horizon, Instrument landing system, International Telecommunication Union, Ionosphere, Knife-edge effect, KSFH, Land mobile radio system, Line-of-sight propagation, List of oldest radio stations, Log-periodic antenna, ..., Marine VHF radio, Mountain View, California, Moving image formats, Multi-Use Radio Service, Multipath propagation, NBN Television, New Jersey State Police, New Zealand, Newcastle, New South Wales, Noise (radio), North America, North American television frequencies, NTSC, Omnidirectional antenna, PAL, Polar mesospheric summer echoes, Pulse 87, Radio astronomy, Radio frequency, Radio modem, Radio wave, Radio-controlled aircraft, Rail transport, Rubber ducky antenna, SECAM, SINCGARS, Skywave, Sun Valley, Nevada, Surface wave, Television, Television channel frequencies, Tennessee Valley Railroad Museum, Transceiver, Tropospheric propagation, Turnstile antenna, Two-way radio, Ultra high frequency, VHF omnidirectional range, Walkie-talkie, Weather radio, Whip antenna, WIN (TV station), Wollongong, Yagi–Uda antenna, 1.25-meter band, 2-meter band, 4-meter band, 405-line television system, 6-meter band. Expand index (49 more) »
Air traffic control
Air traffic control (ATC) is a service provided by ground-based air traffic controllers who direct aircraft on the ground and through controlled airspace, and can provide advisory services to aircraft in non-controlled airspace.
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Airband
Airband or aircraft band is the name for a group of frequencies in the VHF radio spectrum allocated to radio communication in civil aviation, sometimes also referred to as VHF, or phonetically as "Victor".
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Amateur radio
Amateur radio, also known as ham radio, describes the use of radio frequency spectrum for purposes of non-commercial exchange of messages, wireless experimentation, self-training, private recreation, radiosport, contesting, and emergency communication.
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Amplitude modulation
Amplitude modulation (AM) is a modulation technique used in electronic communication, most commonly for transmitting information via a radio carrier wave.
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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 array
An antenna array (or array antenna) is a set of multiple connected antennas which work together as a single antenna, to transmit or receive radio waves.
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Apex (radio band)
Apex radio stations (also known as skyscraper and pinnacle) was the name commonly given to a short-lived group of United States broadcasting stations, which were used to evaluate transmitting on frequencies that were much higher than the ones used by standard amplitude modulation (AM) and shortwave stations.
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Association of American Railroads
The Association of American Railroads (AAR) is an industry trade group representing primarily the major freight railroads of North America (Canada, Mexico and the United States).
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Australian and New Zealand television frequencies
Television frequency allocation has evolved since the commencement of television in Australia in 1956, and later in New Zealand in 1960.
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Australian Broadcasting Corporation
The Australian Broadcasting Corporation (ABC) founded in 1929 is Australia's national broadcaster, funded by the Australian Federal Government but specifically independent of Government and politics in the Commonwealth.
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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 II
Band II is the range of radio frequencies within the very high frequency (VHF) part of the electromagnetic spectrum from 87.5 to 108.0 megahertz (MHz).
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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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Batwing antenna
A batwing or super turnstile antenna is a type of broadcasting antenna used at VHF and UHF frequencies, named for its distinctive shape which resembles a bat wing or bow tie.
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BBC Two
BBC Two is the second flagship television channel of the British Broadcasting Corporation in the United Kingdom, Isle of Man and Channel Islands.
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Business band
The business band is the name used by US radio users who utilize and scanner hobbyists who listen to the Federal Communications Commission (FCC) Industrial/Business pool frequencies.
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Cable television
Cable television is a system of delivering television programming to paying subscribers via radio frequency (RF) signals transmitted through coaxial cables, or in more recent systems, light pulses through fiber-optic cables.
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California Highway Patrol
The California Highway Patrol (CHP) is the highway patrol agency for the state of California and has jurisdiction anywhere in the state.
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Cellular network
A cellular network or mobile network is a communication network where the last link is wireless.
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Circular polarization
In electrodynamics, circular polarization of an electromagnetic wave is a polarization state in which, at each point, the electric field of the wave has a constant magnitude but its direction rotates with time at a steady rate in a plane perpendicular to the direction of the wave.
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Collinear antenna array
In telecommunications, a collinear antenna array is an array of dipole antennas mounted in such a manner that the corresponding elements of each antenna are parallel and collinear, that is they are located along a common line or axis.
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Communications satellite
A communications satellite is an artificial satellite that relays and amplifies radio telecommunications signals via a transponder; it creates a communication channel between a source transmitter and a receiver at different locations on Earth.
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Compact disc
Compact disc (CD) is a digital optical disc data storage format that was co-developed by Philips and Sony and released in 1982.
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Cordless telephone
A cordless telephone or portable telephone is a telephone in which the handset is portable and communicates with the body of the phone by radio, instead of being attached by a cord.
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CSN International
Christian Satellite Network (CSN) International, broadcasting under the callsign KAWZ, is an FM radio station in Twin Falls, Idaho, operating on a frequency of 89.9 MHz with an effective radiated power of 100 kW at 302 meters above average terrain.
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Digital audio broadcasting
Digital audio broadcasting (DAB) is a digital radio standard for broadcasting digital audio radio services, used in many countries across Europe, Asia, and the Pacific.
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Digital radio in Australia
Digital radio in Australia uses the DAB+ standard and is available in Sydney, Melbourne, Brisbane, Perth, Adelaide, Canberra, Darwin and Hobart.
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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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Digital television transition
The digital television transition, also called the digital switchover, the analog switch-off (ASO), or the analog shutdown, is the process in which older analog television broadcasting is converted to and replaced by digital television.
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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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Electromagnetic interference
Electromagnetic interference (EMI), also called radio-frequency interference (RFI) when in the radio frequency spectrum, is a disturbance generated by an external source that affects an electrical circuit by electromagnetic induction, electrostatic coupling, or conduction.
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Electromagnetic radiation
In physics, electromagnetic radiation (EM radiation or EMR) refers to the waves (or their quanta, photons) of the electromagnetic field, propagating (radiating) through space-time, carrying electromagnetic radiant energy.
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Federal Communications Commission
The Federal Communications Commission (FCC) is an independent agency of the United States government created by statute (and) to regulate interstate communications by radio, television, wire, satellite, and cable.
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FM broadcast band
The FM broadcast band, used for FM broadcast radio by radio stations, differs between different parts of the world.
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FM broadcasting
FM broadcasting is a method of radio broadcasting using frequency modulation (FM) technology.
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Frequency modulation
In telecommunications and signal processing, frequency modulation (FM) is the encoding of information in a carrier wave by varying the instantaneous frequency of the wave.
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HAVE QUICK
HAVE QUICK (also HAVEQUICK, short HQ) is a ECM resistant / frequency-hopping system used to protect military Aeronautical mobile (OR) radio traffic.
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Helical antenna
A helical antenna is an antenna consisting of one or more conducting wires (monofilar, bifilar, or quadrifilar with 1, 2, or 4 wires respectively) wound in the form of a helix.
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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 frequency
High frequency (HF) is the ITU designation for the range of radio frequency electromagnetic waves (radio waves) between 3 and 30 megahertz (MHz).
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Horizon
The horizon or skyline is the apparent line that separates earth from sky, the line that divides all visible directions into two categories: those that intersect the Earth's surface, and those that do not.
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Instrument landing system
An instrument landing system (ILS) enables pilots to conduct an instrument approach to landing if they are unable to establish visual contact with the runway.
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International Telecommunication Union
The International Telecommunication Union (ITU; Union Internationale des Télécommunications (UIT)), originally the International Telegraph Union (Union Télégraphique Internationale), is a specialized agency of the United Nations (UN) that is responsible for issues that concern information and communication technologies.
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Ionosphere
The ionosphere is the ionized part of Earth's upper atmosphere, from about to altitude, a region that includes the thermosphere and parts of the mesosphere and exosphere.
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Knife-edge effect
In electromagnetic wave propagation, the knife-edge effect or edge diffraction is a redirection by diffraction of a portion of the incident radiation that strikes a well-defined obstacle such as a mountain range or the edge of a building.
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KSFH
KSFH is a student-run Internet radio station with an active rock radio format.
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Land mobile radio system
Land mobile radio system (LMRS), also called public land mobile radio or private land mobile radio, is a wireless communications system intended for use by terrestrial users in vehicles (mobiles) or on foot (portables).
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Line-of-sight propagation
Line-of-sight propagation is a characteristic of electromagnetic radiation or acoustic wave propagation which means waves travel in a direct path from the source to the receiver.
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List of oldest radio stations
It is generally recognised that the first radio transmission was made from a temporary station set up by Guglielmo Marconi in 1895.
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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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Marine VHF radio
Marine VHF radio refers to the radio frequency range between 156 and 174 MHz, inclusive.
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Mountain View, California
Mountain View is a city located in Santa Clara County, California, United States, named for its views of the Santa Cruz Mountains.
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Moving image formats
This article discusses moving image capture, transmission and presentation from today's technical and creative points of view; concentrating on aspects of frame rates.
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Multi-Use Radio Service
In the United States, the Multi-Use Radio Service (MURS) is an unlicensed two-way radio service similar to Citizens Band (CB).
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Multipath propagation
In wireless telecommunications, multipath is the propagation phenomenon that results in radio signals reaching the receiving antenna by two or more paths.
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NBN Television
NBN Television is an Australian television station based in Newcastle, Australia.
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New Jersey State Police
The New Jersey State Police (NJSP), is the official state police force of the U.S. state of New Jersey.
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New Zealand
New Zealand (Aotearoa) is a sovereign island country in the southwestern Pacific Ocean.
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Newcastle, New South Wales
The Newcastle metropolitan area is the second most populated area in the Australian state of New South Wales and includes most of the Newcastle and Lake Macquarie local government areas.
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Noise (radio)
In radio reception, noise is the superposition of white noise and other disturbing influences on the signal, caused either by thermal noise and other electronic noise from receiver input circuits or by interference from radiated electromagnetic noise picked up by the receiver's antenna.
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North America
North America is a continent entirely within the Northern Hemisphere and almost all within the Western Hemisphere; it is also considered by some to be a northern subcontinent of the Americas.
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North American television frequencies
North American television frequencies are different for over-the-air (also called terrestrial) and cable television systems.
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NTSC
NTSC, named after the National Television System Committee,National Television System Committee (1951–1953),, 17 v. illus., diagrs., tables.
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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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PAL
Phase Alternating Line (PAL) is a color encoding system for analogue television used in broadcast television systems in most countries broadcasting at 625-line / 50 field (25 frame) per second (576i).
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Polar mesospheric summer echoes
Polar mesospheric summer echoes (PMSE) is the phenomenon of anomalous radar echoes found between 80-90 km in altitude from May through early August in the Arctic, and from November through to February in the Antarctic.
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Pulse 87
Pulse 87 is an online radio station with a Dance/EDM music format.
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Radio astronomy
Radio astronomy is a subfield of astronomy that studies celestial objects at radio frequencies.
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Radio frequency
Radio frequency (RF) refers to oscillatory change in voltage or current in a circuit, waveguide or transmission line in the range extending from around twenty thousand times per second to around three hundred billion times per second, roughly between the upper limit of audio and the lower limit of infrared.
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Radio modem
Radio modems transfer data wirelessly across a range of up to tens of kilometres.
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Radio wave
Radio waves are a type of electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared light.
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Radio-controlled aircraft
A radio-controlled aircraft (often called RC aircraft or RC plane) is a small flying machine that is controlled remotely by an operator on the ground using a hand-held radio transmitter.
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Rail transport
Rail transport is a means of transferring of passengers and goods on wheeled vehicles running on rails, also known as tracks.
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Rubber ducky antenna
The rubber ducky antenna (or rubber duck aerial) is an electrically short monopole antenna that functions somewhat like a base-loaded whip antenna.
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SECAM
SECAM, also written SÉCAM (Séquentiel couleur à mémoire, French for "Sequential colour with memory"), is an analogue color television system first used in France.
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SINCGARS
Single Channel Ground and Airborne Radio System (SINCGARS) is a Combat Net Radio (CNR) currently used by U.S. and allied military forces.
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Skywave
In radio communication, skywave or skip refers to the propagation of radio waves reflected or refracted back toward Earth from the ionosphere, an electrically charged layer of the upper atmosphere.
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Sun Valley, Nevada
Sun Valley is a census-designated place (CDP) in Washoe County, Nevada, USA.
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Surface wave
In physics, a surface wave is a mechanical wave that propagates along the interface between differing media.
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Television
Television (TV) is a telecommunication medium used for transmitting moving images in monochrome (black and white), or in colour, and in two or three dimensions and sound.
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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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Tennessee Valley Railroad Museum
The Tennessee Valley Railroad Museum is a railroad museum in Chattanooga, Tennessee.
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Transceiver
A transceiver is a device comprising both a transmitter and a receiver that are combined and share common circuitry or a single housing.
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Tropospheric propagation
Tropospheric propagation describes electromagnetic propagation in relation to the troposphere.
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Turnstile antenna
A turnstile antenna, or crossed-dipole antenna, is a radio antenna consisting of a set of two identical dipole antennas mounted at right angles to each other and fed in phase quadrature; the two currents applied to the dipoles are 90° out of phase.
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Two-way radio
A two-way radio is a radio that can do both transmit and receive a signal (a transceiver), unlike a broadcast receiver which only receives content.
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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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VHF omnidirectional range
Very High Frequency (VHF) Omni-Directional Range (VOR) is a type of short-range radio navigation system for aircraft, enabling aircraft with a receiving unit to determine their position and stay on course by receiving radio signals transmitted by a network of fixed ground radio beacons.
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Walkie-talkie
A walkie-talkie (more formally known as a handheld transceiver, or HT) is a hand-held, portable, two-way radio transceiver.
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Weather radio
A weather radio is a specialized radio receiver that is designed to receive a public broadcast service, typically from government-owned radio stations, dedicated to airing weather reports on a continual basis, with the routine weather reports being interrupted by emergency weather reports whenever needed.
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Whip antenna
A whip antenna is an antenna consisting of a straight flexible wire or rod.
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WIN (TV station)
WIN is a television station serving southern New South Wales and the Australian Capital Territory.
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Wollongong
Wollongong, informally referred to as "The Gong", is a seaside city located in the Illawarra region of New South Wales, Australia.
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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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1.25-meter band
The 1.25 meter, 220 MHz or 222 MHz band is a portion of the VHF radio spectrum internationally allocated for amateur radio use on a primary basis in ITU Region 2, and it comprises frequencies from 220 MHz to 225 MHz.
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2-meter band
The 2-meter amateur radio band is a portion of the VHF radio spectrum, comprising frequencies stretching from 144 MHz to 148 MHz in International Telecommunication Union region (ITU) Regions 2 (North and South America plus Hawaii) and 3 (Asia and Oceania) and from 144 MHz to 146 MHz in ITU Region 1 (Europe, Africa, and Russia).
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4-meter band
The 4-metre (70 MHz) band is an amateur radio frequency band in the lower very high frequency (VHF) spectrum.
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405-line television system
The 405-line monochrome analogue television broadcasting system was the first fully electronic television system to be used in regular broadcasting.
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6-meter band
The 6-meter band is the lowest portion of the very high frequency (VHF) radio spectrum allocated to amateur radio use.
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Redirects here:
87.9MHz, Ultra-short wave, VHF, VHF Band, VHF II, Very High Frequency, Very-high frequency, Very-high-frequency, Vhf.
References
[1] https://en.wikipedia.org/wiki/Very_high_frequency
