What Does Height Above Average Terrain 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.
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Techopedia Explains Height Above Average Terrain
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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