helix antenna

helix antenna

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• Quadrifilar Helix antenna for 436 MHz - This is an antenna that author just built. Was intend for receiving the AO-27 downlink (at 436.800 +/- doppler). It is built with right hand circular polarization, and the gain is supposed to be in the neighborhood of 3 DB.
  [ Hits: 3896 | Votes: 4 | Rating: 4.5 ]

• The Gain of the Axial-Mode Helix Antenna - by Dr. D.T. Emerson, National Radio Astronomy Observatory (NRAO++). Antenna Compendium Volume 4, pp 64-68, 1995, published by the ARRL.
  [ Hits: 2501 | Votes: 5 | Rating: 3.2 ]
• Helix Calc - Helix antenna calculator, to design and make helix antenna plans
  [ Hits: 7842 | Votes: 169 | Rating: 5.85 ]
• Mobile Helix Antennas for HF - Normal mode helix antennas for HF mobile. Photos andn plan for a 20 meters mobile helix antenna by N2MH
  [ Hits: 13451 | Votes: 15 | Rating: 7.46 ]
• 900 MHz Helical Antenna - Photos and description of a homebrewed 900 Mhz antenna
  [ Hits: 3779 | Votes: 14 | Rating: 4.64 ]
• 2.4GHz Helix antenna  ^pop - Concise instructions on making a broadband helical antenna for 2.4GHz use, such as: 802.11b wireless networking 2.4GHz video links.
  [ Hits: 50985 | Votes: 111 | Rating: 6.16 ]
• A Quadruple Helix for AO-40 - A homebrew project of a quadruple helix antenna system based on G3RUH 16 turn helix antenna for 2.4 GHz.
  [ Hits: 8281 | Votes: 10 | Rating: 6.1 ]
• A 16 Turn S-Band Helix - This design represents the smallest practical antenna for Oscar-13 mode-S. Perfect beacon reception at all times is possible, and acceptable SSB even at 43,000 km range.
  [ Hits: 8908 | Votes: 4 | Rating: 7.5 ]
• 13 cm Helix Antenna  ^pop - Here is the design of a 2.4 GHz antenna that is ideal for amateur satellite communications. This antenna is easy to assemble because the design itself tolerates inaccuracies in the construction without really affecting performance.
  [ Hits: 65539 | Votes: 90 | Rating: 6.04 ]
• Helix antenna for 2 meters  ^pop - Plan of a helix antenna for 2 meter satellite use by VK5ZAI
  [ Hits: 29404 | Votes: 25 | Rating: 6.17 ]
• Axial-Mode Helical Antennas - Notes on Axial-Mode Helical Antennas in Amateur Service. Helix Basics, Modeling Issues, and Short Helical Antennas Over Perfect Ground
  [ Hits: 1651 | Votes: 0 | Rating: 0 ]
• The normal-mode helix antenna - A helix will work in the normal mode when the diameter and pitch of the helix is less than 0.1 Lambda
  [ Hits: 3054 | Votes: 7 | Rating: 5 ]
• Gain of Helix - This article summarizes probably the most extensive numerical modelling calculations on the helical antenna ever performed.
  [ Hits: 1890 | Votes: 2 | Rating: 8.5 ]

• Quadrifilar Helix Antennas - The purpose of this page is to provide information and links about Quadrifilar Helix Antennas. It's the best antenna to use for APT satellite reception
  [ Hits: 5588 | Votes: 5 | Rating: 4.6 ]
• QFH antenna for weather satellite band - This article describes how to make a quadrifilar helix (QFH) antenna easily, from inexpensive materials: uPVC plumbing pipe and RG-58U co-axial cable
  [ Hits: 4216 | Votes: 16 | Rating: 5.25 ]
• A quadrifilar helix weather satellite receiving antenna - This article describes how to make a quadrifilar helix (QFH) antenna easily, from inexpensive materials: uPVC plumbing pipe and RG-58U co-axial cable.
  [ Hits: 17061 | Votes: 14 | Rating: 6.01 ]
• The Quadrifilar Helix Antenna - Article about quadrifilar helix antennas, electrical and physical characteristics, difference between quadrifilar and conventional helix antenna
  [ Hits: 2430 | Votes: 5 | Rating: 7.2 ]

• 2400 MHz Helix Antenna - This antenna is easy to build and suitable for broadband work, satellite work and terrestrial work.
  [ Hits: 8807 | Votes: 8 | Rating: 7.5 ]

• Quadrifilar helicoidal antenna - Design your own quadrifilar helix, the site even generates a drilling pattern in a PDF file. Several different construction methods are shown.
  [ Hits: 6082 | Votes: 16 | Rating: 6.87 ]

• Design and build helix antennas - An on-line javascript calculator and quite a few pictures to show how to make a helix antenna.
  [ Hits: 17997 | Votes: 418 | Rating: 8.44 ]

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