enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

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. Monopole antenna - Wikipedia

   en.wikipedia.org/wiki/Monopole_antenna

   The antenna is resonant at this length, so its input impedance is purely resistive. The input impedance has capacitive reactance below ⁠ 1 / 4 ⁠ λ and inductive reactance from ⁠ 1 / 4 ⁠ to ⁠ 1 / 2 ⁠ λ. The gains given in this section are only achieved if the antenna is mounted over a perfectly conducting infinite ground plane ...

4. Radio masts and towers - Wikipedia

   en.wikipedia.org/wiki/Radio_masts_and_towers

   The antenna used for broadcasting through the 1920s was the T-antenna, which consisted of two masts with loading wires on top, strung between them, requiring twice the construction costs and land area of a single mast. [2] (pp 77–78) In 1924 Stuart Ballantine published two historic papers which led to the development of the single mast antenna.

5. List of RF connector types - Wikipedia

   en.wikipedia.org/wiki/List_of_RF_connector_types

   NMO mount connector (new Motorola mount), removable mobile antenna connector uses a 3 ⁄ 4 inch (19 mm) mounting hole and has a large base with a 1 1/8" – 18 tpi thread for attaching the antenna. SC connector, screw version of C connector [not to be confused with the fiber optic connector of the same name]

6. Whip antenna - Wikipedia

   en.wikipedia.org/wiki/Whip_antenna

   A whip antenna is an antenna consisting of a straight flexible wire or rod. The bottom end of the whip is connected to the radio receiver or transmitter. A whip antenna is a form of monopole antenna. The antenna is designed to be flexible so that it does not break easily, and the name is derived from the whip-like motion that it exhibits when ...

7. Television antenna - Wikipedia

   en.wikipedia.org/wiki/Television_antenna

   The higher the antenna is placed, the better it will perform. An antenna of higher gain will be able to receive weaker signals from its preferred direction. Intervening buildings, topographical features (mountains), and dense forests will weaken the signal; in many cases, the signal will be reflected such that a usable signal is still available.