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  2. Discone antenna - Wikipedia

    en.wikipedia.org/wiki/Discone_antenna

    The discone antenna has a useful frequency range of at least 10 to 1. [2] [3] When employed as a transmitting antenna, a properly constructed discone is just as efficient as an antenna designed for a more limited frequency range. The extra bandwidth comes from the controlled taper and large termination radius of the cone.

  3. MFJ Enterprises - Wikipedia

    en.wikipedia.org/wiki/MFJ_Enterprises

    MFJ Enterprises was an American manufacturer specializing in a wide range of products for the amateur radio market. The company focuses on station accessories, including antenna tuners and antenna switching equipment. MFJ was founded in 1972 by Martin F. Jue. As of 2014, the company was recognized as the largest producer of amateur radio ...

  4. G5RV antenna - Wikipedia

    en.wikipedia.org/wiki/G5RV_antenna

    A transmatch (antenna tuner) is not required to use this antenna near its nominal design frequency of 14 MHz, and judicious length adjustments can sometimes include one other frequency band. All other frequencies require a transmatch. [citation needed] There are many variants of the G5RV antenna. Two variations of the G5RV design, called ZS6BKW ...

  5. Antenna types - Wikipedia

    en.wikipedia.org/wiki/Antenna_types

    Traveling wave antennas are notably one of the few types of antennas that are normally not self resonant: Electrical waves induced by received radio waves travel through the antenna wire in the direction that the arriving RF signals are travelling. Only electrical waves traveling toward the feedpoint are collected; waves traveling away from the ...

  6. Omnidirectional antenna - Wikipedia

    en.wikipedia.org/wiki/Omnidirectional_antenna

    Omnidirectional radiation patterns are produced by the simplest practical antennas, monopole and dipole antennas, consisting of one or two straight rod conductors on a common axis. Antenna gain (G) is defined as antenna efficiency (e) multiplied by antenna directivity (D) which is expressed mathematically as: =.

  7. Moxon antenna - Wikipedia

    en.wikipedia.org/wiki/Moxon_antenna

    Moxon antenna for the 20-meter band.The antenna is the faint rectangle of wires held in tension by the bent X-shaped support frame. Moxon antenna for the 2-meter band. The Moxon antenna or Moxon rectangle is a simple and mechanically rugged two-element parasitic array, single-frequency antenna. [1]

  8. List of recreational vehicles - Wikipedia

    en.wikipedia.org/wiki/List_of_recreational_vehicles

    Westfalia one of the founders of small camping vans in the Volkswagen Bus campers, as starting making new Westfalia Class B vans. [2] [3] In the State of California, in order to qualify as Class B RV, a vehicle must have four of the following six built-in items: [4] a water system, typically a sink or shower; a refrigerator; a cooking system

  9. Traveling-wave antenna - Wikipedia

    en.wikipedia.org/wiki/Traveling-wave_antenna

    An advantage of traveling wave antennas is that since they are nonresonant they often have a wider bandwidth than resonant antennas. Common types of traveling wave antenna are the Beverage antenna, axial-mode helical antenna, and rhombic antenna. Traveling-wave antennas fall into two general categories: slow-wave antennas, and fast-wave antennas.

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