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138 links

Antennas : 10M
  • A 5 elements Vee log-yagi for 10m - 5 elements "vee" log-yagi for 10m band- boom lenght : 4mt. Gain : over 10 dBd , f/b =over 40 db (deep null) f/b= min 20dB for different polarization signals
    [ Hits: 4149 | Votes: 9 | Rating: 7.33 ]
Antennas : 2M
  • G4CQM Homebrew VHF Yagi antennas - Homebrew VHF Yagi 50MHz 144MHz 432MHz 1296MHz 2320MHz 6M 2M 70CM 23CM 13CM Yagis
    [ Hits: 17947 | Votes: 94 | Rating: 8.46 ]
  • 7 Elements YAGI for 144 Mhz  pop - The QM7 antenna is a simple 7 elements Yagi with 3.7 m boom length for the lower 144 MHz SSB/MGM band, in PDF Format
    [ Hits: 37123 | Votes: 31 | Rating: 5.66 ]
  • QM5 Yagi for 2 meters band - The QM5 antenna is a simple 5 elements Yagi with 1.88 m boom length for the lower 144 MHz SSB/MGM band, I used it mainly for Sporadic-E and MS contacts. It exhibits a forward gain of 9.17 dBd; i.e. 11.3 dB forward gain over the isotropic radiator, while the F/R is about 11.5 dB. Elements
    [ Hits: 5982 | Votes: 4 | Rating: 5.25 ]
  • 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: 5034 | Votes: 13 | Rating: 5.69 ]
  • Portable Yagi for 144MHz - Simple 7 element Yagi is ideal for portable operation by EI9GQ
    [ Hits: 11811 | Votes: 28 | Rating: 7.18 ]
  • 13 elements Yagi antenna for 144 MHz  updated - DJ9BV yagi antenna for 2 meters band
    [ Hits: 6011 | Votes: 26 | Rating: 4.97 ]
  • 2 Meter 10 Element Quagi Antenna - This antenna was designed by N6JSX Kuby for Transmitter hiding. Fitting the requirements of directionality, high gain, and portability. This antenna was derived from the ARRL Handbook information on Quagi's and Yagi's; in the absence of two meter Quagi information, UHF Quagi dimensions were scaled into 146 MHz use.
    [ Hits: 11986 | Votes: 19 | Rating: 6.95 ]
  • Quagi and Yagi on 2 Meters - Designing quagi and yagi antennas on 2 Meters, some preliminary notes by Cebik, W4RNL
    [ Hits: 3717 | Votes: 4 | Rating: 3.25 ]
Antennas : 4M
  • 70MHz-Yagis - Various Yagi antennas for 70 Mhz band
    [ Hits: 4568 | Votes: 13 | Rating: 6.55 ]
Antennas : 6M
  • VE7CA 6m antennas - Quad and Yagi portable antennas for 50 mhz by VE7CA
    [ Hits: 4673 | Votes: 7 | Rating: 8.15 ]
  • Two portable antennas for 6-meter - VE7CA reprint an interesting article taken from arrl antenna compendium. Two elegant practical and portable 6-meter gain antennas, a two-element quad and a tree-element Yagi antenna for 50 Mhz-6 meter band
    [ Hits: 4328 | Votes: 1 | Rating: 10.00 ]
  • Notes on building Yagis for 50 Mhz - Construction Details for 50MHz-Yagis in DK7ZB-Design
    [ Hits: 1620 | Votes: 4 | Rating: 5.75 ]
Antennas : Feed Lines
  • Transmission Lines - Whenever you choose a coax feedline, the frequency of operation is a very important consideration. Over the operating bandwidth of the coax the VSWR is low, typically 1.2:1 or better. Insertion loss is also an important parameter. It is usually specified in dB/foot and is a linear relationship.
    [ Hits: 1128 | Votes: 0 | Rating: 0.00 ]
  • The DK7ZB-Match for Yagis - Simple, easy to built match developed in 1995 for Yagis with resistitive loads of 12.5, 18 and 28 Ohm.
    [ Hits: 3295 | Votes: 8 | Rating: 6.38 ]
Antennas : Homebrewing Techniques
  • Yagi Element Mounting Considerations - One of the most important considerations when designing and building a Yagi antenna is the method used to attach the elements to a boom. This is true because the boom influences the electrical length of the elements. In this article JH Reisert explain with drawings techniques on mounting yagi antenna elements to a boom
    [ Hits: 3822 | Votes: 0 | Rating: 0.00 ]
Antennas : Moxon
  • OptiBeam - OB2-40M - High efficient, extremely compact yagi by the use of the ‚Moxon Rectangle Technique
    [ Hits: 3454 | Votes: 3 | Rating: 2.00 ]
Antennas : Quad
  • Assembly of the Lightningbolt Quad - One of the best antenna values on the market is the LightningBolt Quad. At about half the cost of a tri-band yagi, you get five band coverage with a single coax feedline and excellent performance from a light, low wind load antenna.
    [ Hits: 3300 | Votes: 10 | Rating: 6.80 ]
  • Vertical plane antennas' beaming comparision  updated - Animated quad and yagi comparison. You can see antennas' characteristics behavior in a vertical plane with changing of the height.
    [ Hits: 2920 | Votes: 17 | Rating: 4.10 ]
Antennas : Yagi DX Resources : DX Peditions
  • The VHF Dxpedition to Dominica - Main goals of this dx pedition was test out a MID SIZE 2MXP20 dual polarity or cross polarized Yagis in a field environment and shoot for a record number of EME QSO's using this system
    [ Hits: 369 | Votes: 1 | Rating: 10.00 ]
Manufacturers : Antennas : HF : Vertical Antennas
  • TET-Emtron - Australian antenna manufacturer specialise in supplying amateurs with the best quality products. Amateur radio multiband Yagi antennas, balums, cb antennas, dipoles
    [ Hits: 1975 | Votes: 9 | Rating: 7.00 ]
Manufacturers : Antennas : VHF UHF Microwave
  • BAZ Spezialantennen - German antenna manufacturer for VHF UHF antennas, Quad-antennas, yagi-Antenna, LPDA-Antenna, W-Lan Antennas.
    [ Hits: 1373 | Votes: 9 | Rating: 7.78 ]
Manufacturers : Test Equipment : Power Meter
  • Telewave - Telewave's innovative engineering produces the industry's toughest antenna systems. Yagi, Fiberglass Collinear, and Dipole models are available from 66-2500 MHz. Wattmeters, test equipment,rf power meters, duplexers, filters and cavities, transmitters combiners
    [ Hits: 1636 | Votes: 0 | Rating: 0.00 ]
Software : Antenna analysis
  • Yagi-Uda Array Calculator - Spreadsheet for the calculation of Yagi-Uda Array of Circular Loops. The website is in french, but the spreadsheet is both in English and French.
    [ Hits: 2463 | Votes: 20 | Rating: 5.45 ]
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