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An antenna tuner, a matchbox, transmatch, antenna tuning unit ( ATU ), antenna coupler, or feedline coupler is a device connected between a radio transmitter or receiver and its antenna to improve power transfer between them by matching the impedance of the radio to the antenna's feedline. Antenna tuners are particularly important for use with ...
On 18 December 2012, MASwings' parent company, Malaysia Airlines, ordered 36 ATR 72-600 for its subsidiaries. 16 of the ordered aircraft will be delivered to MASwings, while the remaining 20 will enter service with Firefly. For the replacement of the Twin Otter Series 300, six brand-new Twin Otter Series 400 aircraft will enter service in mid-2013.
An antenna tuning hut or helix house is a small shed at the base of a longwave or mediumwave radio transmitting antenna. It contains antenna tuner — radio equipment for coupling the power from the feedline to the antenna. [1] Alternative names include antenna tuning house, coupling hut, and dog house.
The ATR 72 is a twin-engine turboprop, short-haul regional airliner developed and produced in France and Italy by aircraft manufacturer ATR (Aerei da Trasporto Regionale or Avions de transport régional), a joint venture formed by French aerospace company Aérospatiale (now Airbus) and Italian aviation conglomerate Aeritalia (now Leonardo S.p.A. ).
English: The image gives six circuit diagrams (schematics) for balanced line antenna tuners of the tuned-transformer type, discussed in the Wikipedia article "Antenna Tuner" or "ATU". It is an edited version of the original by JNRSTANLEY uploaded 2014-10-15.
t. e. An amateur radio installation on a 28' yacht, including 100W HF transceiver with microphone, manual antenna tuner, and morse key. Maritime mobile amateur radio is an amateur radio transmission license that allows maritime operators to install and use radio while at sea. The operator's call sign is extended by adding the suffix "MM" when ...
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Mast radiator. A typical mast radiator and antenna tuning hut of an AM radio station in Chapel Hill, North Carolina, U.S. A mast radiator (or radiating tower) is a radio mast or tower in which the metal structure itself is energized and functions as an antenna.