12 element

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39 links

Antennas : 10M
  • DK7ZB-5-Band-Quad - 2 element Quand antenna for 10 - 12 - 15 -17 - 20 meters band
    [ Hits: 9951 | Votes: 9 | Rating: 7.45 ]
  • Multiband Cubical Quads - EI7BA Multiband Cubical Quads projects, includes two elements quad antennas for 10 12 15 17 20 meters band. Performance considerations, detailed pictures and construction notes.
    [ Hits: 7075 | Votes: 4 | Rating: 9.25 ]
Antennas : 12M
  • Dualband-Beam 12/17 m - The beam has only one feedpoint with 50 Ohm and has an open-sleeve element for 12 m by DK7ZB
    [ Hits: 3780 | Votes: 10 | Rating: 7.50 ]
  • 2 element Quad antenna for 10 12 15 mt  pop - Detailed instructions about a home made 2 element quad antenna made in diamond configuration, resonating on 10 12 and 15 meters band, by IZ7ATH Talino
    [ Hits: 60038 | Votes: 84 | Rating: 6.54 ]
Antennas : 17M
  • Aerialacts - MaxiMoxon is aerialacts trade name for its line of compact, monoband, two-element, uni-directional parasitic beam antenna arrays utilizing Yagi-style aluminum elements. MaxiMoxon models are available for the 20, 17, 15, 12 and 10 meter amateur radio bands.
    [ Hits: 3997 | Votes: 5 | Rating: 2.40 ]
Antennas : 20M : 20 meter Yagi antennas
  • 2-Element-Yagis for HF  pop - 2-Element parasitic Yagis for the Shortwave-Bands 10-12-15-17-20-30m. The antennas are feeded with the DK7ZB-match. A quarter-wave choke of coax is grounded at the socket.
    [ Hits: 44499 | Votes: 134 | Rating: 7.34 ]
Antennas : 2M
  • QM7 7 elements 144 MHz Yagi-Uda Antenna - The QM7 antenna is a simple 7 elements Yagi with 3.70 m boom length for the lower 144 MHz SSB/MGM band, used it mainly for Sporadic-E and MS contacts. It exhibits a forward gain of 11.35 dBd; i.e. 13.5 dB forward gain over the isotropic radiator, while the F/R is about 12.5 dB
    [ Hits: 5077 | Votes: 14 | Rating: 5.50 ]
  • 12el 144MHz Plus2 LFA Priority listing - A Low-Noise Urban 12 element Plus2 LFA Yagi antenna for 144MHz no match required, 50Ohm direct feed
    [ Hits: 2079 | Votes: 6 | Rating: 7.00 ]
Antennas : 4M
  • 6el 70MHz Low Noise LFA Yagi - A Super 6 element LFA Yagi for 4M. 5.15 mtrs long and 12.4 dBi. Awesome antenna with no matching required and flat SWR throughout. Easy build
    [ Hits: 544 | Votes: 1 | Rating: 10.00 ]
  • 12 elements Yagi for 70Mhz Priority listing - A Monster Yagi for 70MHz huge gain, clean pattern and flat SWR 50 Ohm, no matching required
    [ Hits: 401 | Votes: 1 | Rating: 8.00 ]
Antennas : 6M
  • 6element 50 MHZ Yagi - Less than 20' long but super gain figure and wideband with flat SWR.
    [ Hits: 487 | Votes: 0 | Rating: 0.00 ]
  • YU7EF Pop 6 & 7 Elements antenna - YU7EF Pop 6 elm for 50Mhz and 7elm for 70Mhz, a 4+6m douband with 12mm Alu tubing
    [ Hits: 1871 | Votes: 3 | Rating: 7.67 ]
  • 9 elements 50MHz 12.5Ohm Yagi - A DX antenna for Serious hams. High gain, super flat SWR. The ultimate 9el 50MHz Yagi
    [ Hits: 297 | Votes: 1 | Rating: 1.00 ]
Antennas : Array
  • Yagi for 80 and 40 meters - Design plan of an array of a two element yagis for 80m and a 3 element 40m antenna sharing a single 12 meters long boom by EA5DY
    [ Hits: 647 | Votes: 2 | Rating: 7.00 ]
Antennas : EH
  • The EH Antenna analyzed - This report is a recent analysis of the EH antenna using the Pspice program and considering the antenna as a set of circuit elements
    [ Hits: 1177 | Votes: 1 | Rating: 10.00 ]
Antennas : Multiband
  • The 5 Bands Wire-Beam - This wire-beam has one radiator-element, feeded with 450-Ohm-Wireman-twinlead and needs an antenna-tuner. For the bands 6m, 10m, 12m, 15m, 17m and 20m bended reflector-elements are used. The support is a cross of 4 fibreglass-fishing-rods
    [ Hits: 5388 | Votes: 2 | Rating: 7.00 ]
  • HF multiband vertical Antenna - YF1AR multiband vertical antenna, based on orginal concept by VE7BS. Consist of 6 vertical elements and 6 base radials with a single 50 Ohm feed line.
    [ Hits: 1056 | Votes: 4 | Rating: 3.25 ]
  • 2-Element-DK7ZB-Quad for 5 Bands - 10-12-15-17-20m A description was in the German Ham-Magazine "Funkamateur" in Issue 11/2003
    [ Hits: 13367 | Votes: 12 | Rating: 5.42 ]
Antennas : Quad
  • 2 Element Quad Project - Homebrew quad antenna project you can build for very little cost for 12,11CB,10 meters and higher frequencies
    [ Hits: 2408 | Votes: 5 | Rating: 5.20 ]
  • 2 Element Quad Project - 2 element quad antenna project with different construction from all pvc for 12, 11CB, 10 meter and up.
    [ Hits: 1617 | Votes: 4 | Rating: 5.75 ]
Antennas : Theory : Antenna Gain
  • Corner reflector antenna - Do you need a high gain antenna? Have you suffered on picking up interference from unwanted direction? You need a directional antenna but a 12 element Yagi will be too attractive!
    [ Hits: 1502 | Votes: 4 | Rating: 3.75 ]
Antennas : VHF UHF
  • 1200Mhz 40elements YAGI - A table with element size and spacing for a 40 Elements yagi antenna for 1200 Mhz
    [ Hits: 1625 | Votes: 5 | Rating: 5.60 ]
Antennas : Yagi
  • Yagi Beams at VK2BA - 6 Metre array 7 elements on 12M boom, 10 metre aray - 5 elements on 7M boom, 29MHz, 6el yagi
    [ Hits: 569 | Votes: 1 | Rating: 1.00 ]
  • 12el 50MHz Low Noise LFA Yagi - A 22 metre long 50 Ohm Monster 6M 12 element Yagi. Super gain, Flat SWR, excellent F/B 50 mhz antenna.
    [ Hits: 949 | Votes: 2 | Rating: 5.50 ]
Technical Reference : Filters
  • A low pass filter circuit - A simple 7 element, Chebyshev low pass filter, rolls of at 30MHz. Attenuation is better than -40dB at 60MHz, -65dB at 90MHz, -80dB at 120MHz.
    [ Hits: 4753 | Votes: 17 | Rating: 5.94 ]
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