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・ Antenna array
・ Antenna array (electromagnetic)
・ Antenna Awards
・ Antenna blind cone
・ Antenna boresight
・ Antenna codlet
・ Antenna diversity
・ Antenna effect
・ Antenna efficiency
・ Antenna equivalent radius
・ Antenna factor
・ Antenna farm
・ Antenna feed
・ Antenna gain
・ Antenna gain-to-noise-temperature
Antenna height above average terrain
・ Antenna height considerations
・ Antenna interface standards group
・ Antenna Island
・ Antenna Man (Nordgulen)
・ Antenna measurement
・ Antenna Measurement Techniques Association
・ Antenna Music
・ Antenna noise temperature
・ Antenna RAI of Caltanissetta
・ Antenna rotator
・ Antenna Sicilia
・ Antenna Software
・ Antenna structure registration in the United States
・ Antenna temperature


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Antenna height above average terrain : ウィキペディア英語版
Antenna height above average terrain

In United States telecommunication terminology, antenna height above average terrain is the antenna height above the average terrain elevations from from the antenna for the eight directions spaced evenly for each 45° of azimuth starting with true north.
In general, a different antenna height above average terrain will be determined in each direction from the antenna. The average of these eight heights is the antenna height above average terrain. In some cases, such as seashore, fewer than eight directions may be used.
Source: from Federal Standard 1037C and from MIL-STD-188
== External links ==

* (Federal Communications Commission ) HAAT description and calculator


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