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2. Clear-channel station - Wikipedia

   en.wikipedia.org/wiki/Clear-channel_station

   A clear-channel station is a North American AM radio station that has the highest level of protection from interference from other stations, particularly from nighttime skywave signals. This classification exists to ensure the viability of cross-country or cross-continent radio service enforced through a series of treaties and statutory laws.

3. Television antenna - Wikipedia

   en.wikipedia.org/wiki/Television_antenna

   A television antenna, also called a television aerial (in British English ), is an antenna specifically designed for use with a television receiver (TV) to receive terrestrial over-the-air (OTA) broadcast television signals from a television station. Terrestrial television is broadcast on frequencies from about 47 to 250 MHz in the very high ...

4. TV and FM DX - Wikipedia

   en.wikipedia.org/wiki/TV_and_FM_DX

   TV DX and FM DX is the active search for distant radio or television stations received during unusual atmospheric conditions. The term DX is an old telegraphic term meaning "long distance." VHF / UHF television and radio signals are normally limited to a maximum "deep fringe" reception service area of approximately 40–100 miles (64–161 km ...

5. ATSC standards - Wikipedia

   en.wikipedia.org/wiki/ATSC_standards

   Mobile reception of some stations will still be more difficult, because 18 UHF channels in the U.S. have been removed from TV service, forcing some broadcasters to stay on VHF. This band requires larger antennas for reception, and is more prone to electromagnetic interference from engines and rapidly changing multipath conditions. [citation needed]

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

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

   Best Value: Antop TV Antenna Amplifier. Most Versatile: The Cimple Co TV Antenna Amplifier. Easiest Setup: Winegard LNA-100 Boost Antenna Amplifier. Best for Multiple TVs: Antennas Direct 8-Port ...

7. Line-of-sight propagation - Wikipedia

   en.wikipedia.org/wiki/Line-of-sight_propagation

   Line of sight (LoS) propagation from an antenna. Line-of-sight propagationis a characteristic of electromagnetic radiationor acoustic wave propagationwhich means waves can only travel in a direct visual path from the source to the receiver without obstacles.[1] Electromagnetic transmissionincludes light emissions traveling in a straight line.