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2. Antenna rotator - Wikipedia

   en.wikipedia.org/wiki/Antenna_rotator

   An antenna rotator (or antenna rotor) is a device used to change the orientation, within the horizontal plane, of a directional antenna. Most antenna rotators have two parts, the rotator unit and the controller. The controller is normally placed near the equipment which the antenna is connected to, while the rotator is mounted on the antenna ...

3. List of catastrophic collapses of broadcast masts and towers

   en.wikipedia.org/wiki/List_of_catastrophic...

   The collapse destroyed the tower, KLTV's analog and digital antennas, KLTV's digital transmitter, and FM station KVNE's antenna. The analog transmitter was undamaged, and within a few days was moved to KLTV's backup tower in east Tyler. The collapse occurred the day after Raycom Media officially took ownership of the station. WALB-TV Mast ...

4. Mount Lowe (California) - Wikipedia

   en.wikipedia.org/wiki/Mount_Lowe_(California)

   Mount Lowe is a mountain on the southern fold of the San Gabriel Mountains. Originally named Oak Mountain, it was renamed for Professor Thaddeus S.C. Lowe , who is credited for being the first person to set foot on and plant the American flag at its peak, and who built the Mount Lowe Railway to its foot in 1896.

5. 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) ...

6. Monopole antenna - Wikipedia

   en.wikipedia.org/wiki/Monopole_antenna

   Common types of monopole antenna are the whip, rubber ducky, umbrella, inverted-L and T-antenna, inverted-F, folded unipole antenna, mast radiator, and ground plane antennas. The monopole is usually used as a resonant antenna; the rod functions as an open resonator for radio waves, oscillating with standing waves of voltage and current along ...

7. Omnidirectional antenna - Wikipedia

   en.wikipedia.org/wiki/Omnidirectional_antenna

   Antenna gain (G) is defined as antenna efficiency (e) multiplied by antenna directivity (D) which is expressed mathematically as: =. A useful relationship between omnidirectional radiation pattern directivity (D) in decibels and half-power beamwidth (HPBW) based on the assumption of a sin ⁡ ( b θ ) / b θ {\displaystyle \sin(b\theta )/{b ...