am antenna


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1396 links - and 7 categories

Antennas : 12M Antennas : 17M
  • 17 Meter Coaxial Moxon Antenna - 17 m reduced size coaxial moxon rectangle, an exercise with an MFJ 259B plans by N0KHQ
    [ Hits: 11535 | Votes: 10 | Rating: 7.00 ]
  • 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: 4104 | Votes: 5 | Rating: 2.40 ]
Antennas : 40M
  • A Feasible Full Sized 40 Meter Beam - This project started as a result of renewed interest in 40 meters coupled with the desire for an antenna system that would be more effective than the simple dipole.
    [ Hits: 6951 | Votes: 1 | Rating: 1.00 ]
  • G5RV Beam  pop - G5RV 40m Beam Antenna
    [ Hits: 25946 | Votes: 7 | Rating: 9.00 ]
Antennas : 6M
  • 50MHz J-Pole Antenna  pop - Need a general purpose antenna on the magic band? The J-Pole is an easy-to-build and inexpensive device that provides an omni-directional vertically polarised antenna without the need for a ground plane. In technical terms, it is an end fed vertical 1/2 wave which is fed via a 1/4 wave matching stub.
    [ Hits: 32082 | Votes: 13 | Rating: 6.31 ]
Antennas : Antenna Calculators
  • EH Antenna calculator  pop - Calculate eh antenna components dimension with this online form
    [ Hits: 18624 | Votes: 69 | Rating: 5.44 ]
Antennas : EH
  • EH antennas and CFA antenna - Many antennas function because of common mode currents, rather than working in spite of them. Two popular examples are CFA and EH antennas. Another recent example, appearing in Antennex's compact antenna articles, is a thick stub "vertical" with no counterpoise.
    [ Hits: 1833 | Votes: 2 | Rating: 5.50 ]
Antennas : G5RV
  • The G5 RV Antenna - Theory and operantions, G5RV construction tips by Keith, KE2DI
    [ Hits: 4993 | Votes: 8 | Rating: 6.88 ]
Antennas : J-Pole
  • J Pole antennas variations on a theme - Twin lead jpole, ladder line jpole, copper cactus j pole, material list to build your own jpole antenna and a brief history of Jpole antennas.
    [ Hits: 4059 | Votes: 2 | Rating: 7.50 ]
  • J-Pole theory  pop - The J-Pole antenna is an omnidirectional antenna that can be used for base, mobile and field day stations. It does not need a ground plane, radials or a complicated matching system. The J-Pole can be cheaply, simply and quickly constructed using a variety of techniques, some of which are discussed in this article.
    [ Hits: 29428 | Votes: 24 | Rating: 6.60 ]
  • A J-Pole for 2-meters and 70-cm  updated  pop - An Easy Dual-Band VHF/UHF vertical Antenna made with a TV twin lead and coax cable
    [ Hits: 93763 | Votes: 102 | Rating: 6.19 ]
  • Plumbers Delight J Pole Antenna Project - This article was reprinted to assist new hams at building their own 2 metre antenna. This design is very rugged and can be built for a few dollars with most of the parts available at your local Home Depot.
    [ Hits: 4870 | Votes: 2 | Rating: 9.00 ]
Antennas : Moxon
  • MOXON Antenna Project - The MOXON antenna can provide radio amateurs with an excellent antenna system that is easy to homebrew and usually does not require any adjustment if made according to the dimensions specified by its designer. A typical MOXON rectangle can be built in a few hours, using X type of spreaders arrangement as discussed on this web site.
    [ Hits: 3946 | Votes: 7 | Rating: 9.14 ]
  • The Moxon rectangle, what matters? - About the moxon antennas, analysis and technical considerations anbout moxon rectangles by SM5JAB
    [ Hits: 983 | Votes: 0 | Rating: 0.00 ]
  • Moxon Rectangle Calculator - Program to calculate the dimentions of a Moxon Rectangle. All equations correlated to NEC antenna modeling software for wire diameters from 1e-5 to 1e-2 wavelengths.
    [ Hits: 5366 | Votes: 19 | Rating: 5.72 ]
Antennas : Windom
  • OH7SV Matti Hohtola Ham Projects  pop - The most modern QRP transceiver in 2004,Direct Conversion HF Transceiver with DDS LO, 50 ohm to 200 ohm HF wide band transformers, Wilkinson splitter for RX measurements, Windom baluns 2001/2004, Ferrite rod antenna for 80 meter, Magnetic Loop Antenna for 80 m, Mascot Switched PSU 9320 modification to 8A peak current, 150W MOSFET linear amplifier for 80m, 80 m HF SSB/CW Transceiver
    [ Hits: 19282 | Votes: 27 | Rating: 8.04 ]
Manufacturers : Antennas : HF : Yagi Antennas
  • Spiderbeam antennas  pop - High Performance Lightweight Antennas. The spider beam is a full size lightweight tribander yagi for 20/15/10m, made from fiberglass and wire. It has been specially developed as a highly efficient antenna for dx-pedition and portable use.
    [ Hits: 39849 | Votes: 24 | Rating: 6.92 ]
Software : Antenna analysis
  • ERP Calculator Plus - ERP Calculator is an Amateur Radio software utility designed to perform a side-by-side comparison of two Ham Radio antenna systems. ERP Calculator comes pre-programmed with data files including published data for several popular brands and types of coax cable as well as several popular antenna system brands and models. ERP Calculator displays values of ERP, Antenna Power Gain, Antenna Feed point Power, Antenna System Gain in dB, Antenna Gain in dBd, SWR Attenuation in dB, SWR Power Attenuation, Coax Loss in dB, and Coax Power Loss
    [ Hits: 2710 | Votes: 9 | Rating: 5.11 ]
  • J Pole calculator  pop - Enter the operating frequency and calculate dimensions of your jpole antenna
    [ Hits: 46357 | Votes: 157 | Rating: 6.23 ]
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