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2. Yagi–Uda antenna - Wikipedia

   en.wikipedia.org/wiki/Yagi–Uda_antenna

   A Yagi–Uda antenna, or simply Yagi antenna, is a directional antenna consisting of two or more parallel resonant antenna elements in an end-fire array; [1] these elements are most often metal rods (or discs) acting as half-wave dipoles. [2]

3. Antenna types - Wikipedia

   en.wikipedia.org/wiki/Antenna_types

   [y] The simple antennas used to make a Yagi-Uda can either all be linear or bent linear antennas, or all loops (a quad antenna) or (rarely) a mixed combination of loops and straight-wire antennas. Yagi–Udas are used for rooftop television antennas, point-to-point communication links, and long distance shortwave communication using skywave ...

4. Ultra high frequency - Wikipedia

   en.wikipedia.org/wiki/Ultra_high_frequency

   This type of antenna, called a Yagi–Uda antenna, is widely used at UHF frequencies. ... Retevis GMRS two-way radios operating on 462 and 467 MHz in the UHF band, ...

5. General Mobile Radio Service - Wikipedia

   en.wikipedia.org/wiki/General_Mobile_Radio_Service

   TIDRADIO TD-H5 GMRS radios. The General Mobile Radio Service (GMRS) is a land-mobile FM UHF radio service designed for short-range two-way voice communication and authorized under part 95 of the US FCC code. It requires a license in the United States, but some GMRS compatible equipment can be used license-free in Canada. The US GMRS license is ...

6. Very high frequency - Wikipedia

   en.wikipedia.org/wiki/Very_high_frequency

   For directional antennas, the Yagi antenna is the most widely used as a high gain or "beam" antenna. For television reception, the Yagi is used, as well as the log-periodic antenna due to its wider bandwidth. Helical and turnstile antennas are used for satellite communication since they employ circular polarization.

7. Driven and parasitic elements - Wikipedia

   en.wikipedia.org/wiki/Driven_and_parasitic_elements

   An antenna may have more than one driven element, although the most common multielement antenna, the Yagi, usually has only one. For example, transmitting antennas for AM radio stations often consist of several mast radiators , each of which functions as a half-wave monopole driven element, to create a particular radiation pattern .