Search Results for "antenna"

4468 links - and 164 categories

Antennas : 2M
  • 9 element yagi for 2 meters band  pop - A simple design of a 9 elem. yagi antenna for 2 meters band
    [ Hits: 49444 | Votes: 243 | Rating: 5.14 ]
  • J-Pole Antennas for 2 Meters  pop - This paper describes two types of 2 meter J-Pole antennas, one made of copper pipe and a roll-up J-pole made of TV twin lead. The figures give the details of the dimensions, components and construction.
    [ Hits: 28120 | Votes: 6 | Rating: 6.83 ]
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: 7002 | Votes: 1 | Rating: 1.00 ]
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: 32381 | Votes: 13 | Rating: 6.31 ]
Antennas : Delta loop Antennas : End-Fed
  • End-fed vertical j-pole and horizontal zepp vertical - There are many incorrect ideas and claims surrounding end-fed vertical antennas (like the I-Max 2000), end fed horizontal antennas, Zepp, and J-pole antennas. This article describes it.
    [ Hits: 8192 | Votes: 4 | Rating: 6.75 ]
Antennas : J-Pole
  • Super J-Pole plans - The super J-pole is a regular J-pole antenna with a 1/2 wave element mounted above with a 1/2 wave phasing harness connecting the element to the bottom part of the J-pole. The antenna can be built for any band, but I built mine for 2 meters
    [ Hits: 9175 | Votes: 10 | Rating: 7.89 ]
  • 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: 4070 | 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: 29594 | Votes: 25 | Rating: 6.74 ]
  • Easy J-pole antenna  pop - Everybody says keep one in your bag, nobody seems to make one work right. Here's the straight scoop on why the J-pole is not an easy antenna to duplicate!
    [ Hits: 34006 | Votes: 26 | Rating: 6.37 ]
  • 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: 95468 | Votes: 104 | Rating: 6.15 ]
  • Scanner J-Pole - J-Pole antenna information for scanner use.
    [ Hits: 4534 | Votes: 2 | Rating: 5.50 ]
  • 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: 4884 | Votes: 2 | Rating: 9.00 ]
  • Jpole by EA6IC - Jpole antenna plan for 144 and 435 Mhz
    [ Hits: 4107 | Votes: 11 | Rating: 1.63 ]
  • Concealed DSS J-Pole - The idea here is to have my antenna high in the air, in free space, with the dish mounted close by for concealment.
    [ Hits: 8014 | Votes: 3 | Rating: 10.00 ]
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: 3955 | Votes: 7 | Rating: 9.14 ]
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: 19427 | Votes: 28 | Rating: 7.90 ]
Operating Modes : Mobile : Bicycle
  • Bicycling J-Pole 2-meter antenna - An antenna for the 2-meter band, made by sliding coax insulator braid over a glass fiber bicycle safety flag pole
    [ Hits: 7610 | Votes: 6 | Rating: 4.17 ]
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: 2758 | Votes: 9 | Rating: 5.11 ]
  • J Pole calculator  pop - Enter the operating frequency and calculate dimensions of your jpole antenna
    [ Hits: 46891 | Votes: 161 | Rating: 6.26 ]
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