Antenna (radio) - Wikipedia Antennas can be designed to transmit and receive radio waves in all horizontal directions equally (omnidirectional antennas), or preferentially in a particular direction (directional, or high-gain, or "beam" antennas)
TV Antenna Map by Zip Code – Channel Master These popular channels and more are available in the US and can be received nationwide with a TV antenna Enter your address for a map of broadcast towers and signal information in your area
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