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2. Height above average terrain - Wikipedia

   en.wikipedia.org/wiki/Height_above_average_terrain

   The FCC procedure to calculate HAAT is: from the proposed or actual antenna site, either 12 or 16 radials were drawn, and points at 2, 4, 6, 8, and 10 miles (16 km) radius along each radial were used. The entire radial graph could be rotated to achieve the best effect for the station.

3. The 7 Best HDTV Antenna Amplifiers of 2023 For a Better Signal

   www.aol.com/lifestyle/best-high-definition-tv...

   The frequencies range from 300 to 3,000 megahertz, with channels typically numbered from 14 to 83. ... To select the best TV antenna amplifiers, we consulted Lynn Claudy, senior vice president ...

4. TV and FM DX - Wikipedia

   en.wikipedia.org/wiki/TV_and_FM_DX

   The development of interest in TV-FM DX as a hobby can arise after more distant signals are either intentionally or accidentally discovered, leading to a serious interest in improving the listener's antenna and receiving installation for the purpose of actively seeking long-range television and radio reception.

5. Long-range Wi-Fi - Wikipedia

   en.wikipedia.org/wiki/Long-range_Wi-Fi

   Long-range Wi-Fi is used for low-cost, unregulated point-to-point computer network connections, as an alternative to other fixed wireless, cellular networks or satellite Internet access. Wi-Fi networks have a range that's limited by the frequency, transmission power, antenna type, the location they're used in, and the environment. [ 1 ]

6. Television antenna - Wikipedia

   en.wikipedia.org/wiki/Television_antenna

   A 'whip' antenna at the side of a Casio portable TV. Some portable televisions use a whip antenna. [6] This consists of a single telescoping rod about a meter (3.3 feet) long attached to the television, which can be retracted when not in use. It functions as a quarter-wave monopole antenna.

7. Very low frequency - Wikipedia

   en.wikipedia.org/wiki/Very_low_frequency

   Very high power transmitters (~1 megawatt) are required for long-distance communication, so the efficiency of the antenna is an important factor. A "triatic" or "flattop" antenna, another common VLF transmitting antenna. It consists of vertical radiator wires each connected at top to parallel horizontal capacitive topload wires stretching up to ...