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The company focuses on station accessories, including antenna tuners and antenna switching equipment. MFJ was founded in 1972 by Martin F. Jue . As of 2014, the company was recognized as the largest producer of amateur radio products worldwide.
The category of simple antennas consists of dipoles, monopoles, and loop antennas. Nearly all can be made with a single segment of wire (ignoring the break made in the wire for the feedline connection). [citation needed] Dipoles and monopoles called linear antennas (or straight wire antennas) since their radiating parts lie along a single ...
The Tarheel Army Missile Plant was constructed in 1927 as a synthetic fabric rayon manufacturing plant for the A.M. Johnson Rayon Mills, Inc. The company failed in marketing their rayon product to the textile weaving plants in the Burlington vicinity. As a result, the plant was renamed the Carolina Rayon Mills, Inc and a new management was ...
A loop antenna for UHF reception. This model also has two telescopic poles for VHF. It also has a mains-powered amplifier to improve signal strength. Indoor antennas may be mounted on the television itself or stand on a table next to it, connected to the television by a short feed line.
Antenna (radio), also known as an aerial, a transducer designed to transmit or receive electromagnetic (e.g., TV or radio) waves; Antenna types, a list of the many different types of radio and microwave antennas; Antennae Galaxies, the name of two colliding galaxies NGC 4038 and NGC 4039
An antenna array consisting of two such antennas, one above the other and driven in phase has a gain of up to 17 dBi. Being log-periodic, the antenna's main characteristics ( radiation pattern , gain, driving point impedance ) are almost constant over its entire frequency range, with the match to a 300 Ω feed line achieving a standing wave ...
A PRC-117 radio and SATCOM antenna. The AN/PRC-117F/G radio is currently in use with the United States Navy Seabee and EOD teams in their MRAP and JERRV vehicles. [2] The radio is also in use by the United States Marine Corps, [6] United States Army, [7] USSOCOM, [8] United States Coast Guard, United States Air Force, [9] Royal Air Force, [10] Dutch Army, Spanish Air Force, British Army ...
Typical GSM sector antenna outdoor unit. A sector antenna is a type of directional microwave antenna with a sector-shaped radiation pattern.The word "sector" is used in the geometric sense; some portion of the circumference of a circle measured in degrees of arc. 60°, 90° and 120° designs are typical, often with a few degrees 'extra' to ensure overlap and mounted in multiples when wider or ...
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