A tower array is an arrangement of multiple radio towers which are mast radiators in a phased array.[1] They were originally developed as ground-based tracking radars.[2] Tower arrays can consist of free-standing or guyed towers or a mix of them. Tower arrays are used to constitute a directional antenna of a mediumwave or longwave radio station.
The number of towers in a tower array can vary.
In many arrays all towers have the same height, but there are also arrays of towers of different height.[3] The arrangement can vary. For directional antennas with fixed radiation pattern, linear arrangements are preferred, while for switchable directional patterns (usually for daytime groundwave versus nighttime skywave), square arrangements are chosen.[4]
^Jacoby Barrera (2019). Broadcasting Journalism. EDTECH. pp. 129–132. ISBN 9781839472893.
^John S. Seybold (2005). Introduction to RF Propagation. Wiley. p. 54. ISBN 9780471743682.
^Graham A. Jones; David H. Layer; Thomas G. Osenkowsky; Edmund A. Williams (2013). National Association of Broadcasters Engineering Handbook: NAB Engineering Handbook. Taylor & Francis. p. 759. ISBN 9781136034107.
^B. Whitfield Griffith (2000). Radio-electronic Transmission Fundamentals. Noble Publishing Corporation. pp. 411–419. ISBN 9781884932137.
A towerarray is an arrangement of multiple radio towers which are mast radiators in a phased array. They were originally developed as ground-based tracking...
In antenna theory, a phased array usually means an electronically scanned array, a computer-controlled array of antennas which creates a beam of radio...
T-antenna (an old type of mast antenna) Targeting Towers Telecom infrastructure sharing Towerarray Transmitter station Laport, Edmund A. (1952). Radio...
clear-channel) frequency. CKNW uses a directional antenna with a four-towerarray to protect other stations on 980 AM from interference. Its transmitter...
power at night to 500 watts, using a directional antenna with a three-towerarray. Programming is also heard on FM translator W275AX at 102.9 MHz. WWBF...
focused sunlight. It uses an array of flat, movable mirrors (called heliostats) to focus the sun's rays upon a collector tower (the target). Concentrating...
in Calgary, which shares Class A status on 1010 AM. CFRB uses a four-towerarray directional antenna in the Clarkson neighbourhood of Mississauga. CFRB...
increased to 15,000 watts. WWTC has a directional signal using a four-towerarray. The transmitter and radio studios are on Cliff Road near Minnesota State...
A line array is a loudspeaker system that is made up of a number of usually identical loudspeaker elements mounted in a line and fed in phase, to create...
stations on 1130 AM, it reduces power to 25,000 watts and uses a nine-towerarray. The transmitter is on Flag Trail at Prairie Hills Lane in Prior Lake...
watts to reduce interference. It uses a directional antenna with a three-towerarray. The transmitter is off El Reposo Drive in Los Angeles, near the Glendale...
16 CTV Windsor. CKLW is a 50,000-watt Class B station, using a five-towerarray directional antenna with differing patterns day and night. Despite its...
{\begin{array}{c}\vdots \\|\\F_{2}\\|\\F_{1}\\|\\\ F_{0}.\end{array}}} A tower of fields may be finite or infinite. Q ⊆ R ⊆ C is a finite tower with rational...
the beam to be steered, sometimes the entire array is suspended by cantilever arms from a single large tower which can be rotated. See ALLISS-Antenna. Alternatively...
20,000 watts. It uses a directional antenna at all times, with a six-towerarray. The transmitter site is off Marriottsville Road in Randallstown. Weekdays...
reduces power to 2,500 watts. It uses a directional antenna with a four-towerarray. The transmitter is on Ewingville Road in Ewing Township, New Jersey...
PAVE PAWS (PAVE Phased Array Warning System) is a complex Cold War early warning radar and computer system developed in 1980 to "detect and characterize...
on August 3, 2021. Emmis Broadcasting sold the land on which the six-towerarray stood, off Perry Worth Drive near Interstate 65 in Whitestown, Indiana...
creating "array antennas" thousands of miles in size. VHF collinear array of folded dipoles Sector antennas (white bars) on cell phone tower. Collinear...
Miami-Dade County along Krome Avenue with four towers and 50kw day/20kw evenings. The former two towerarray in North Bay Village, Florida has been removed...
use parabolic antennas. For long and medium wavelength frequencies, towerarrays are used in most cases as directional antennas. When transmitting, a...
reduces power to 750 watts. It uses a directional antenna with a five-towerarray. Programming is also heard on 250-watt FM translator K277CA at 103.3...
tallest AM radio tower in the United States. It once broadcast at night with a 5,000-watt directional signal, using a multiple towerarray. Ownership decided...
Burlington and Plattsburgh, New York, areas. WVMT's easily identifiable three-towerarray is shown on Lake Champlain navigation charts, located in Colchester,...
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