4 wire

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4 wire

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Antennas : 20M : 20 meter Dipole Antennas
  • VK5AH -HF 4 Bander dipole  pop - A multiband 80-40-20-15 meters dipole wire antenna that can be extended to cover 160 meters too.
    [ Hits: 54024 | Votes: 22 | Rating: 6.68 ]
Antennas : 40M
  • 40m/80m Portable antenna  pop - Portable wire antenna for 40 and 80 meter made with a RF Chocke. Can be adapted to work on 160 meters by adding additional 6.9 meters wire at its end.
    [ Hits: 61539 | Votes: 29 | Rating: 5.96 ]
Antennas : 40M : 40 meter Delta Loop Antennas
  • K4TX Delta Loop for 40 Meters - 40 Meter 2 Element Parasitic Delta Loop wire antenna with pictures of delta loop assembling
    [ Hits: 7080 | Votes: 13 | Rating: 7.54 ]
Antennas : 80M
  • 80 m 3/4 wave LLV - This is a vertically polarized Phased array. The left Vertical wire is 180 degrees out of phase
    [ Hits: 4903 | Votes: 3 | Rating: 7 ]
Antennas : Dipole
  • The Monoband HF dipole antenna - If you are looking for an easy antenna for your favorite band, you can't go wrong with an halfwavelenght dipole, all you need is 3 insulators and some wire
    [ Hits: 3479 | Votes: 4 | Rating: 8.75 ]
Antennas : Helical
  • 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: 50974 | Votes: 110 | Rating: 6.13 ]
Antennas : Installation
  • Installation of a Utility Pole - There are many ways to support an amateur radio antenna. Installatio of a utility pole will provide an antenna height of approximately 13 meters (40 feet) and will require no guy wires.
    [ Hits: 6492 | Votes: 9 | Rating: 7.56 ]
Antennas : J-Pole Antennas : Multiband
  • W4JOH Cobra Antenna - The original Cobra antenna, is a multiband 160 or 80 to 10 meter, designed by W4JOH is built using standard insulated wire of about 14 gauge and fed with 450 ohm ladder line down to the shack into a tuner.
    [ Hits: 1709 | Votes: 1 | Rating: 10 ]
Antennas : WiFi
  • Helical Antenna for 2.4 GHz and 802.11b - The following page details construction of a Helical antenna based on the superb design by Jason Hecker.
    [ Hits: 5309 | Votes: 6 | Rating: 7.17 ]
  • A Tincan feed for 2.45Ghz - Construction details for a simple but effective antenna for 2.45Ghz wireless lan use.
    [ Hits: 6861 | Votes: 9 | Rating: 5.56 ]
  • Dish 802.11 Wireless Networking Antenna - This antenna modification is for the IEEE 802.11b networking protocol that operates at 2.4 GHz. It can be scaled easily to the 5 GHz frequency used by IEEE 802.11a by simply scaling the dimensions on the feed can and the excitation antenna to 2.4/5 = 48% of the dimensions shown above.
    [ Hits: 9443 | Votes: 8 | Rating: 6 ]
  • 2.4 Ghz double quad antenna  pop - An easy to build, compact antenna for wireless lan applications that offers a reasonable amount gain.
    [ Hits: 27908 | Votes: 83 | Rating: 5.17 ]
  • PringlesCantenna - Seattle Wireless - The PringlesCantenna is an ultracheap Yagi-type directional antenna that can be built for under $10. The original Pringles Yagi was designed by Andrew Clap.
    [ Hits: 9417 | Votes: 5 | Rating: 6.8 ]
  • SardineCanAntenna - Seattle Wireless - Sardine Can Antenna. is a BiQuad or Bi circle - wire length each side (8 x 1/4 waves ) 31 mm
    [ Hits: 10235 | Votes: 13 | Rating: 4.61 ]
  • 2.4GHz Cubic Quad Antenna  pop - The Cubic Quad antenna is a commonly homemade antenna in the range of about 150 odd MHz. Our little project was to design one of these for use in the 2.4GHz range for 802.11 wireless LANs.
    [ Hits: 37190 | Votes: 70 | Rating: 5.46 ]
Manufacturers : Amplifiers
  • SSB Electronic USA - manufactures and distributes HF, VHF, UHF and SHF equipment covering 10MHz. - 47.0GHz. Our products include: Wireless LAN / WAN Bidirectional Linear Amplifiers, Low Noise Preamplifiers - LNA's, RF Linear Amplifiers, Relays, Transverter Systems, Frequency Translation Systems, Downconverters, Antennas, Parabolic Dishes, Coaxial Cable, Relays, Antenna Switches, Microwave Test equipment, PC controlled Receivers, Microwave Linear Amplifiers including models for Telemetry, Wireless, and CDMA applications.
    [ Hits: 8401 | Votes: 8 | Rating: 6.12 ]
Manufacturers : Towers and Accessories
  • Rotating Tower Systems - Using our components you can build a rotating tower with greater capability than 3-4 static towers. A rotating tower allows common rotation of HF stacked arrays, VHF and UHF arrays, and antennas mounted at optimum heights. Component design also allows tower shunt loading and end support for wire antennas
    [ Hits: 1368 | Votes: 3 | Rating: 6.33 ]
Software : Antenna analysis
  • NEC4WIN - NEC4WIN is a 32 bits commercial antenna simulation software based on MININEC3 developed by the Naval Ocean Systems Center in the 70s and 80s. It runs under Windows and can be used to simulate, analyze and optimize wire antennas, beams, verticals, etc. NEC4WIN has limitations. They are the same as Mininec3 on which the engine is based.
    [ Hits: 1873 | Votes: 2 | Rating: 7 ]
Technical Reference : Amplifiers : HF Amplifiers
  • G3YXM 500 W PA - 40-80-160 meter band linear amplifier
    [ Hits: 3622 | Votes: 3 | Rating: 7 ]

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