hi q antennas

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hi q antennas

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Antennas : 160M
  • 160m Short Vertical Loft Antenna - This is a very small vertical 160m antenna that fits in the loft of even my small house. It was built as a way of getting a signal out on 160m for local AM contacts, but the local noise level was far too high to allow it to be used at night for this purpose. However, on WSPR it did a pretty good job with WSPR spots from a very long way across Europe being received when running 2.5W out.
    [ Hits: 175 | Votes: 1 | Rating: 7 ]
  • 80m Inverted-L Base-loaded for 160m - 80m Inverted-L Antenna, Base-loaded for 160m antenna. This antenna is not a good DX antenna however within small garden where true DX antennas would be impossible it has performed very well.
    [ Hits: 94 | Votes: 1 | Rating: 10 ]
Antennas : 80M
  • 80m Vertical - This is a FULL SIZE quarter-wavelength vertical made on a 18m Spiderbeam fiberglass telescoping Spiderpole
    [ Hits: 117 | Votes: 0 | Rating: 0 ]
Antennas : Helical
  • Helical Antennas for 144 MHz - This article is about two excellent small helical antennas for the two meters band. With performance close to that of full sized antennas, these small helical antennas are low in profile but high in efficiency.
    [ Hits: 174 | Votes: 1 | Rating: 7 ]
Antennas : Horn
  • What is Horn Antenna - Horn Antenna - The energy of the beam when slowly transform into radiation, the losses are reduced and the focussing of the beam improves. A Horn antenna may be considered as a flared out wave guide, by which the directivity is improved and the diffraction is reduced. One of the first horn antennas was constructed in 1897 by Bengali-Indian radio researcher Jagadish Chandra Bose in his pioneering experiments with microwaves. The modern horn antenna was invented independently in 1938 by Wilmer Barrow and G. C. Southworth. This Horn model antenna is suitable employed in the UHF or SHF radio bands. Making this horn model antenna it will be easy for a beginner to make if it works in the 10GHz frequency, because small dimensions so it is not so difficult and also offers gain up to 25dBi.
    [ Hits: 57 | Votes: 0 | Rating: 0 ]
Antennas : Loop
  • Small Loop Antenna for the 80m to 10m  new - This article describes the development of two tunable antennas each consisting of three interconnected small loops and capable of providing excellent DX performance. The aerials are home-constructed, and located in a very small garden with a minimum of visual impact on the neighbours and are low enough in height to avoid the attention of UK planning authorities.
    [ Hits: 144 | Votes: 1 | Rating: 8 ]
Antennas : Magnetic Loop
  • K8NDS Magnetic Loops - Fractional Wave Loops antennas are a sort of magnetic loop antennas that differs in several aspects from the standard ones. Author is now SK however in his page he posted several examples and interesting links
    [ Hits: 126 | Votes: 0 | Rating: 0 ]
  • Magnetic Loop Antennas for 40-80-160m - This magnetic loop DIY site is ment to be an introduction into making DX high quality magnetic loop antennas that will beat any dipole
    [ Hits: 197 | Votes: 2 | Rating: 8.5 ]
Antennas : Quad
  • The Swiss Quad Antenna - Rotatable Antenna with Phased Elements based on the orignal design concept of HB9CV antennas, is considered to have an higher gain than standard quad antennas. The Swiss Quad Antenna does not need any spreader or boom.
    [ Hits: 289 | Votes: 3 | Rating: 7.67 ]
Antennas : Theory
  • Folded Dipoles in Yagi Uda Antennas - A folded dipole is an antenna, with two conductors connected on both sides, and folded to form a cylindrical closed shape, to which feed is given at the center.
    [ Hits: 205 | Votes: 2 | Rating: 4.5 ]
  • Stacking, Phasing and Matching Yagi Antennas - This is a synopsis of a talk presented to the Sydney VHF DX GROUP by VK2ZAB on how, when and why is convenient to build a Yagi antenna stack.
    [ Hits: 167 | Votes: 1 | Rating: 10 ]
Operating Aids : Beginner's Guides
  • Ham Radio Equipment The Basics - This article help on explaining what you need to start with amateur radio. By using a local ham radio club station to purchasing second hand radio equipment and how to get help on installing antennas.
    [ Hits: 75 | Votes: 0 | Rating: 0 ]

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