4 tower

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4 tower

27 links

Antennas : 20M : 20 meter Vertical Antennas
  • The Vertical Buddi Beam for 20m - The Vertical Buddi Beam on 20m using no Coils. n this article I am going to describe a totally new way to construct and use a very old design the two element Yagi antenna. Unlike the traditional Yagi this design does not require a Tower or a boom, it is 100 percent portable and most important high- performance and easy to assemble using standard Buddipole components.
    [ Hits: 569 | Votes: 2 | Rating: 4.5 ]
Antennas : End-Fed
  • End Fed Antenna for WARC Bands - I used a FT 240-43 for much more power, not needed but beter safe than sorry. 150 Watt continious, 300 Watt PEP SSB, 90 Watt Digimodes 10 Mhz, 18 Mhz, 24 Mhz Very easy to build design and a good antenna for people who don't have much space for big towers or long wires This design is from Hans - PE1RNU
    [ Hits: 184 | Votes: 1 | Rating: 3 ]
Antennas : Moxon
  • Moxon Mania - Building the Ultimate 4-Band Moxon Antenna - The article details the design and construction of a four-band Moxon beam by a radio amateur. The beam, mounted atop a rooftop tower, aimed for gain over a dipole on 20 meters, cost under $500, and included additional bands. The design features fiberglass spreaders, four bands (20/15/10/6 meters), and a single feedpoint. The construction involved computer modeling, NEC source code, and specific dimensions. The article outlines the assembly, materials, and tuning process, including in-situ adjustments for optimal performance. Despite initial challenges, the beam improved signal strength and facilitated contacts on multiple bands, marking it as the best HF antenna the author has owned.
    [ Hits: 94 | Votes: 0 | Rating: 0 ]
Antennas : Theory
  • Detuning a Tower from a vertical antenna - It is possible to detune the tower so that, at least on one band, the tower can be made to effectively disappear. That is, become non-resonant on the band of interest. This allows the vertically-polarized low-bands antenna to meet its potential.
    [ Hits: 438 | Votes: 0 | Rating: 0 ]
Antennas : Towers
  • Raising a Yagi Onto a Guyed Tower - VE3VN describe in this article how to raise a tri-band yagi antenna onto a DMX-52 tower with pictures and schemas that cover the whole raising process.
    [ Hits: 600 | Votes: 0 | Rating: 0 ]
  • Home Brew Fold Over Tower - A Tower Project at WOIVJ. A pictorial story of the erection of a 40 foot, self-supporting, fold-over tower.
    [ Hits: 367 | Votes: 0 | Rating: 0 ]
  • KD5RVX MicroVert Antenna - A Microvert antenna by KD5RVX based on the original microvert concept by DL7PE. PDF includes a 20 foot portable PVC tower project
    [ Hits: 441 | Votes: 0 | Rating: 0 ]

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