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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. Digital television transition in the United States - Wikipedia

   en.wikipedia.org/wiki/Digital_television...

   An outdoor high-gain antenna was assumed in planning for DTV reception. Planning for DTV reception assumed "a properly oriented, high-gain antenna mounted 30 feet in the air outside." [43] The Consumer Electronics Association set up a website called AntennaWeb to identify means to provide the correct signal reception to over-the-air viewers.

5. Line-of-sight propagation - Wikipedia

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

   Line-of-sight propagation. Line-of-sight propagation is a characteristic of electromagnetic radiation or acoustic wave propagation which means waves can only travel in a direct visual path from the source to the receiver without obstacles. [ 1] Electromagnetic transmission includes light emissions traveling in a straight line.

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. List of North American broadcast station classes - Wikipedia

   en.wikipedia.org/wiki/List_of_North_American...

   The -DT suffix, optional for digital-only stations, was used primarily to distinguish a DTV transmission from an analog signal of the same broadcast (or is seen identifying the main subchannel of a station on a PSIP display); likewise, -TV is optional except if the eponymous radio stations exist.

8. QAM (television) - Wikipedia

   en.wikipedia.org/wiki/QAM_(television)

   QAM (television) QAM is a digital television standard using quadrature amplitude modulation. It is the format by which digital cable channels are encoded and transmitted via cable television providers. QAM is used in a variety of communications systems such as Dial-up modems and WiFi. In cable systems, a QAM tuner is linked to the cable in a ...

9. UHF television broadcasting - Wikipedia

   en.wikipedia.org/wiki/UHF_television_broadcasting

   The upper antenna is a Yagi design. UHF television broadcasting is the use of ultra high frequency (UHF) radio for over-the-air transmission of television signals. UHF frequencies are used for both analog and digital television broadcasts. UHF channels are typically given higher channel numbers, like the US arrangement with VHF channels ...