u dipole

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u dipole

484 links - and 2 categories

Antennas : 40M : 40 meter Dipole Antennas
  • Linear Loaded 40m Dipole - A simple dipole for 40m band feeded with 450-Ohm openwire feedline includes MMANA Gal files to download
    [ Hits: 310 | Votes: 1 | Rating: 5.00 ]
Antennas : 4M Antennas : 80M
  • A Broadband 80/160 meter dipole - An easy to build single wire antenna for 160 and 80 meters with a better than 2 to 1 swr across the 80 meter band
    [ Hits: 1488 | Votes: 1 | Rating: 8.00 ]
Antennas : Baluns
  • Build your own HF balun - A balun is a MUST for dipoles or similar antennas when they are feed with coaxial cables. Many hams connect the center conductor of the coaxial cable to one side of the dipole, and the shield to the other. Wrong!
    [ Hits: 1112 | Votes: 2 | Rating: 9.50 ]
Antennas : Baluns : 4 to 1 balun
  • High Power 4:1 Balun - High power 4:1 air core balun for multi band fan dipole antenna
    [ Hits: 1095 | Votes: 3 | Rating: 1.33 ]
Antennas : Delta loop
  • Vertical Delta Loops - A excellent 31 pages presentation of how to build and setup vertical delta loops, giving attantion to performance, loop shape or optimal feeding point, includes many pictures and comparison vs dipoles or monopole antennas
    [ Hits: 723 | Votes: 1 | Rating: 10.00 ]
Antennas : Dipole
  • Feed line Dipole for 2 Meters - Building a Resonant Feed line Dipole for 2 Meters
    [ Hits: 773 | Votes: 1 | Rating: 10.00 ]
  • Center Connector for Dipole Antenna - This is another alternative home-brew center connector for a dipole. The parts used are common PVC accesories found at the home supply store.
    [ Hits: 595 | Votes: 3 | Rating: 10.00 ]
  • Simple 20-40 m Dipole Antenna - A simple TRAP-dipole project for 20 and 40m bands includes EZNec simulations
    [ Hits: 937 | Votes: 2 | Rating: 9.00 ]
Antennas : End-Fed
  • Refining an End Fed Antenna - Optimizing performances of the end-fed antennas QRP quarterly article
    [ Hits: 749 | Votes: 0 | Rating: 0.00 ]
  • Resonant Feedline Dipole - Experiences with the end-fed dipole based on the concepts presented by J. Taylor in an article titled RFD-1 and RFD-2: Resonant Feed-Line Dipoles in QST. August 1991.
    [ Hits: 436 | Votes: 0 | Rating: 0.00 ]
Antennas : End-Fed : End Fed Half Wave Antenna
  • End Fed Half Wave Antenna Coupler - Centre fed half wave dipoles make great, simple and effective antennas for the HF bands. Sometimes however, the centre feed is not ideal. This great project will improve the overall antenna performance.
    [ Hits: 1082 | Votes: 1 | Rating: 10.00 ]
Antennas : Log Periodic
  • VHF Log Periodic Antenna - 17-Element Very High Frequency/Ultra High Frequency Log Period Dipole Array
    [ Hits: 632 | Votes: 0 | Rating: 0.00 ]
Antennas : Multiband Antennas : OCF
  • OCF Dipole - This is a popular antenna design as the performance is very good across the HF bands and requires little or no tuning. It is a dipole fed off center with a 4:1 current balun at the offset feedpoint. The antenna shown covers 80, 40, 20 and 10 meters with 15 meters and WARC bands
    [ Hits: 1234 | Votes: 1 | Rating: 8.00 ]
Antennas : Resonant Feedline Dipole Antennas : Shortwave
  • Curtain Antenna - An antenna for shortwave radio broadcasting consisting of rows and columns of dipoles, is a high gain directional antenna, designed for medium and long range communications.
    [ Hits: 482 | Votes: 0 | Rating: 0.00 ]
Operating Modes : Portable Operations
  • Fun and Games with the Spiderbeam 18 Meter Pole - A portable operation experience with a SpiderBeam pole during a contest, testing wire antennas, like dipole and delta loops configurations on 20 40 and 80 meters band.
    [ Hits: 166 | Votes: 1 | Rating: 10.00 ]
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