Height Above Average Terrain (HAAT)
Definition - What does Height Above Average Terrain (HAAT) mean?
Height above average terrain (HAAT) measures how high a transmitting point is above the surrounding topography. This can be important in broadcasting activities, and in relation to data or voice transmission systems, or conventional radio and television.
Techopedia explains Height Above Average Terrain (HAAT)
Measuring HAAT involves specific methods to look at the alteration of height on a piece of landscape. The Federal Communications Commission maintains a HAAT calculator online that can be used to determine height above average terrain. These measurements may be useful, not only for large-scale broadcasting, but for operating extenders such as small cell extension towers or Wi-Fi extensions. For example, a HAAT requirement might be attached to a piece of gear used to transmit a signal.
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