4 element

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4 element

226 links - and 1 categories

Antennas : 23cm
  • 23cm 1296MHz Field Day Yagi - 23cm 1296 MHz Field Day Yagi Construction, a 26 element conventional-style design. Article with several pictures and detailed homebrewing instructions
    [ Hits: 326 | Votes: 0 | Rating: 0 ]
  • 43 Elements Yagi Antenna for 23cm band - An interesting presetnation full of usefull tricks to correctly design and build 23 cm Yagi using simple tools. The basic design of the antenna presented in this document is taken from the original DL6WU Yagi Design published in 1982
    [ Hits: 423 | Votes: 1 | Rating: 8 ]
Antennas : 2M
  • Super Duper Moxon for 144 MHz - 6 element super duper moxon antenna for the 144 MHz, a modified HAARP Antenna projetc
    [ Hits: 1913 | Votes: 6 | Rating: 5 ]
  • The Arrow Antenna Portable VHF antenna - This article is about a 4 element yagi VHF antenna designed to be easy to be assembled and suited for portable operations
    [ Hits: 500 | Votes: 0 | Rating: 0 ]
  • Lightweight 144 MHz Yagi antenna - A Lightweight 2m Yagi for SOTA. The boom is 20mm PVC electrical conduit and the elements are 2.4mm aluminium TIG welding rod. The antenna is carried as a single length of conduit with the elements stowed inside the boom, sealing them in with a bung. The driven element is connected directly to 50 Ohm coax with a BN-43-202 balun core to decouple the coax shield.
    [ Hits: 176 | Votes: 0 | Rating: 0 ]
Antennas : 40M : 40 meter Yagi Antennas
  • 40m 2 elements HQ Traps Yagi - The longest element has a total length of 14m and has a boom length of 5.5 meters featuring a total bandwith of 166 kHz
    [ Hits: 172 | Votes: 1 | Rating: 8 ]
Antennas : 6M : 6 meter Moxon Antennas
  • 6 Meter Band Moxon Style Antenna - Design and build a 6 meter 2-element Moxon antenna mostly from available aluminum tubing and angle stock.
    [ Hits: 608 | Votes: 1 | Rating: 1 ]
Antennas : 6M : 6 meter Yagi Antennas
  • 3 Element Beam for 50 MHz - A six meter band 3 element yagi beam antenna project with shortened elements using coax cables with the outer ends stripped and the center conductor shorted in somewhat of a Bazooka antenna.
    [ Hits: 424 | Votes: 1 | Rating: 8 ]
  • 6 Elements Yagi Antenna on 50 MHz - This is a design based on the QuickYagi 4 software by WA7RAI with some changes for practical reasons. The beam uses 6.5 metres of standard 25mm square boom, 12mm diameter elements without tapers. The actual boom length used is 6.3 metres and all parts are readily available.
    [ Hits: 131 | Votes: 2 | Rating: 6 ]
  • 3 Elements Yagi LFA for 50 MHz - A short 3 element LFA Yagi for 50MHz with a 1.94M boom. This antenna has been designed in order to minimise the upward and downward lobes typically seen the the EL plane on Yagi antennas.
    [ Hits: 225 | Votes: 2 | Rating: 8 ]
  • Homebrewing a 6 Meter Yagi - Six meters is a great band for home built Yagis. The elements are reasonably small, but not so small that building tolerances are critical. With careful construction and detailed instructions, it is certainly feasible to build no-tune Yagis up to 432 MHz.
    [ Hits: 464 | Votes: 0 | Rating: 0 ]
Antennas : 70cm
  • Coaxial Collinear Antenna for 70 CM Band - This coaxial collinear antenna was built to test for my own consumption whether or not this antenna method actually works. the guiding principle is that we have multiple 1/4 wave elements fed in series , the radiation from each adds in phase to produce a large vertically polarised omni-directional antenna with substantial gain
    [ Hits: 565 | Votes: 3 | Rating: 6.33 ]
Antennas : Fan Dipole
  • The Ramsay Dipole for 40 20 15 meters - A multiband Fan Dipole that works on 40 20 15 meters band, making a folded dipole for 7 MHz band and additional element for the 21 MHz and 14 MHz
    [ Hits: 400 | Votes: 4 | Rating: 8.75 ]
Antennas : HexBeam
  • HexBeam Antenna Explained - A hexagonal beam is a form of the Yagi antenna which is based on parasitic principles developed early in the last century in Japan for achieving gain in one direction.How HexBeam antennas works. A hexagonal beam operates exactly like Yagi antenna, but instead of a driven element that is straight like a dipole, it is a wire bent into the shape of the letter M.
    [ Hits: 167 | Votes: 0 | Rating: 0 ]
Antennas : Lindenblad
  • Build a twin-lead Lindenblad Antenna for 70cm and 2m - This document contains the detailed instructions to build a homemade lindenblad antenna using a twin-lead as dipole elements. This document contains 9 pages and includes a detailed construction sequence and some drawings to build this antenna for UHF and VHF ham radio bands
    [ Hits: 1268 | Votes: 3 | Rating: 8.67 ]
Antennas : Multiband
  • ZS6KMD 20-40m Multiband Dipole - The dipole shown in this document is installed in an inverted Vee configuration, with two leg elements on each side held parallel to each other by 21cm spacers. The upper leg is for 40m and the lower leg for 20m. The spacers are made of 7mm plastic garden hose support for garden sprayers cut to 21cm.
    [ Hits: 524 | Votes: 0 | Rating: 0 ]
Antennas : Receiving
  • 9 Circle RX antenna - The receiving antenna setup for the top band, made with a 9 elements vertical antenna array, remote controller and remote relais.
    [ Hits: 435 | Votes: 0 | Rating: 0 ]
Antennas : Wire
  • Lazy H Array Antenna for 40 meter - Make them simple then Make them work. The LAZY H antenna is a general type of antenna that is in the curtain array family. By placing two 1 wavelength dipoles in a plane that is at right angles to the direction of maximum radiation and keeping the proper in-phase current condition to each element, you can achieve a high gain bi-directional antenna.
    [ Hits: 284 | Votes: 3 | Rating: 5.33 ]
Antennas : Yagi
  • 3 Element Yagi Antennas for 144 MHz SSB-CW - A great and efficient monoband VHF portable antenna. The article consist of two version of a 12.5 Ohm 3 elements yagi beam antenna plans for the two meter band, a full sized and a shortened version expecially designed for the SSB and CW on 144 MHz.
    [ Hits: 426 | Votes: 4 | Rating: 8 ]
Radio Equipment : HF YAGI Antennas : Hy-Gain TH3JR
  • Hy-Gain TH3jr Beam Manual online - Hy-Gain TH3jr Tri-band HF 3 Element Beam Covers 10, 15 and 20 Meters assembly instruction manual
    [ Hits: 179 | Votes: 2 | Rating: 5 ]

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