For broader coverage of this topic, see Signal transmission. For the band, see The Transmitters.
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Commercial FM broadcasting transmitter at radio station WDET-FM, Wayne State University, Detroit, US. It broadcasts at 101.9 MHz with a radiated power of 48 kW.
In electronics and telecommunications, a radio transmitter or just transmitter (often abbreviated as XMTR or TX in technical documents) is an electronic device which produces radio waves with an antenna with the purpose of signal transmission up to a radio receiver. The transmitter itself generates a radio frequency alternating current, which is applied to the antenna. When excited by this alternating current, the antenna radiates radio waves.
Transmitters are necessary component parts of all electronic devices that communicate by radio, such as radio (audio) and television broadcasting stations, cell phones, walkie-talkies, wireless computer networks, Bluetooth enabled devices, garage door openers, two-way radios in aircraft, ships, spacecraft, radar sets and navigational beacons. The term transmitter is usually limited to equipment that generates radio waves for communication purposes; or radiolocation, such as radar and navigational transmitters. Generators of radio waves for heating or industrial purposes, such as microwave ovens or diathermy equipment, are not usually called transmitters, even though they often have similar circuits.
The term is popularly used more specifically to refer to a broadcast transmitter, a transmitter used in broadcasting, as in FM radio transmitter or television transmitter. This usage typically includes both the transmitter proper, the antenna, and often the building it is housed in.
In electronics and telecommunications, a radio transmitter or just transmitter (often abbreviated as XMTR or TX in technical documents) is an electronic...
much more stable electronically. After first considering setting up transmitters on mountain peaks, the team instead settled on two abandoned Coast Guard...
The Transmitter is an online publication dedicated to neuroscience research news and commentary. Aimed at professionals from across the neuroscience discipline...
A television transmitter is a transmitter that is used for terrestrial (over-the-air) television broadcasting. It is an electronic device that radiates...
An illusion transmitter uses two parabolic mirrors to transmit 3-D illusions of an object by use of a camera trained on the first mirror, which then sends...
money transmitter or money transfer service is a business entity that provides money transfer services or payment instruments. Money transmitters in the...
Transmitter hunting (also known as T-hunting, fox hunting, bunny hunting, and bunny chasing), is an activity wherein participants use radio direction...
The transmitter Wilsdruff was a medium wave radio broadcasting facility near Wilsdruff, Germany. Until the 1990s there was a transmitter for 1044 kHz with...
could detect whether the transmitter was working. The high electrical field surrounding the top of the tower when the transmitter was powered meant that...
The Junglinster Longwave Transmitter is a longwave broadcasting facility used by RTL near Junglinster, Luxembourg, which went into service in 1932. Its...
The Wavre radio transmitter is a facility for Fm, Dab+ and TV broadcasting near Wavre in Belgium. Formerly the mediumwave transmissions used a grounded...
Erching transmitter was a longwave broadcasting facility of the Voice of America, established in 1953 near Erching, Bavaria, Germany. The transmitter used...
The Millennium Transmitter is a 720 ft (219.5 m) tall mast owned by ABS-CBN Corporation and operated by Advanced Media Broadcasting System located at...
The Motala longwave transmitter (Swedish: Motala långvågsstation) is a longwave broadcasting station, established in 1927 in Motala, Sweden. Its aerial...
Riegelsberg Transmitter (or Schocksberg Transmitter) is a transmitter for FM and TV at Riegelsberg, near Saarbrücken, Germany. The transmitter uses as aerial...
300 gigahertz (GHz). They are generated by an electronic device called a transmitter connected to an antenna which radiates the waves. They are received by...
The Trier Transmitter was a medium-wave transmitter in Trier, Germany, that went into service in 1932.[clarification needed] The transmitter was located...
VLF transmitter Lualualei is a facility of the United States Navy near Lualualei, Hawaii transmitting orders to submerged submarines in the very low frequency...
20th century List of transmission sites List of European medium wave transmitters List of tallest buildings List of future tallest buildings List of tallest...
The "Vilyeyka" VLF transmitter is the site of the 43rd Communications Center of the Russian Navy (Russian: 43-й узел связи ВМФ России), located west of...
The Transmitter Solt (Hungarian: Solti rádióadó) is a radio transmission facility for 540 kHz MW (Medium Wave) near Solt, Hungary, serving as the primary...
The Brocken Transmitter (German: Sender Brocken) is a facility for FM- and TV-transmitters on the Brocken, the highest mountain in Northern Germany. The...
A broadcast relay station, also known as a satellite station, relay transmitter, broadcast translator (U.S.), re-broadcaster (Canada), repeater (two-way...
Aholming transmitter replaced Erching and allowed 24-hour service on the second longwave frequency. On 1 October 1994 Heusweiler transmitter, which had...
many navies use powerful shore VLF transmitters for submarine communications. A few nations have built transmitters which use extremely low frequency (ELF)...
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