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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. Antenna types - Wikipedia

   en.wikipedia.org/wiki/Antenna_types

   Although the name is similar to the folded unipole, the two antennas are electrically different: The folded monopole is a much simpler antenna. Discone antenna The discone is a monopole version of a biconical antenna. The name of the antenna describes its shape: A metal disk above a metal cone.

5. Biconical antenna - Wikipedia

   en.wikipedia.org/wiki/Biconical_antenna

   A truncated biconical antenna showing the typical "mace head" shape. In radio systems, a biconical antenna is a broad-bandwidth antenna made of two roughly conical conductive objects, nearly touching at their points. [1] Biconical antennas are broadband dipole antennas, typically exhibiting a bandwidth of three octaves or more.

6. Shortwave broadband antenna - Wikipedia

   en.wikipedia.org/wiki/Shortwave_broadband_antenna

   It is the only type of directional antenna that is directional ("beam" antenna) over its entire working range. discone antenna The discone is omnidirectional, vertically polarized, and has a gain similar to a dipole. It is equally efficient as a monopole and is exceptionally wideband, offering a frequency range ratio of up to approximately 10:1 .

7. Television antenna - Wikipedia

   en.wikipedia.org/wiki/Television_antenna

   A short antenna pole next to a house Multiple Yagi TV aerials. Antennas are commonly placed on rooftops and sometimes in attics. Placing an antenna indoors significantly attenuates the level of the available signal. [19] [20] Directional antennas must be pointed at the transmitter they are receiving; in most cases great accuracy is not needed ...