4 dipole antenna

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4 dipole antenna

221 links - and 1 categories

Antennas : 40M : 40 meter Dipole Antennas
  • Postage Stamp 40 Meter Wire Dipole Antenna - Build yourself a postage stamp 40 meter wire dipole antenna that fits in a space a little over 20 wide and works reasonably well at low heights
    [ Hits: 2765 | Votes: 5 | Rating: 6.5 ]
  • Linear Loaded 40m Dipole - A simple dipole for 40m band feeded with 450-Ohm openwire feedline includes MMANA Gal files to download
    [ Hits: 484 | Votes: 1 | Rating: 5 ]
Antennas : Antenna Calculators
  • Log-Periodic Dipole Array Calculator - This LPDA calculator is based on the design procedure as described by L. B. Cebik, W4RNL (SK) in the 21st edition of The ARRL Antenna Handbook.
    [ Hits: 482 | Votes: 5 | Rating: 7 ]
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: 1639 | Votes: 5 | Rating: 5 ]
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: 1610 | Votes: 4 | Rating: 2.75 ]
Antennas : Dipole
  • 10-80 Slinky Dipole - A slinky dipole antenna that covers almost all HF bands mede with a flexible 90-turn metal spring by N4SPP
    [ Hits: 1374 | Votes: 7 | Rating: 6.86 ]
  • 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: 861 | Votes: 3 | Rating: 10 ]
  • Simple 20-40 m Dipole Antenna - A simple TRAP-dipole project for 20 and 40m bands includes EZNec simulations
    [ Hits: 1741 | Votes: 5 | Rating: 6 ]
  • 20 40 80 Trapped Dipole - An homemade portable trapped dipole antenna for 40 and 80 meters band with an optional extension for the 20 meters.
    [ Hits: 1396 | Votes: 9 | Rating: 5 ]
Antennas : Lindenblad
  • 70 cm Lindenblad Antenna - The antenna is a vertical dipole, around which four parasitic elements are forming a circle.
    [ Hits: 1944 | Votes: 2 | Rating: 2.5 ]
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: 2558 | Votes: 7 | Rating: 9.43 ]
Antennas : Portable
  • Asymmetrical Hatted Vertical Dipole - Theory and origins of W4RNL Asymmetrical Hatted Vertical Dipole AHVD for portable operations.
    [ Hits: 745 | Votes: 0 | Rating: 0 ]
  • Overview on some SOTA portable antennas - A review of some portable antennas for SOTA operations, including linked dipoles, end-fed, verticals
    [ Hits: 684 | Votes: 1 | Rating: 4 ]
  • Portable link dipole - A lightweight inverted vee antenna that can be supported by a 10 metre long fiberglass squid pole. The antenna is designed to cover 10, 15, 20, 40 and 80 m bands.
    [ Hits: 1681 | Votes: 4 | Rating: 6 ]
Antennas : Resonant Feedline Dipole Antennas : Vertical
  • Multiband HF Dipole - A 40 ft vertical dipole antenna that can cover HF Bands from 80 to 10 meters winding a dipole in a 12m HD telescoping fiberglass pole
    [ Hits: 3118 | Votes: 7 | Rating: 6.43 ]
  • Balloon Vertical Omni-Antennas - Experimenting vertical wire antennas for 40 and 20 meters supported by balloons resulting in excellent gain in RX and good overall performance against horizontal dipole
    [ Hits: 771 | Votes: 1 | Rating: 5 ]
Antennas : W3DZZ
  • OH2EC Antenna - A trapped dipole antenna based on the orignal W3DZZ antenna design resonating on 80 40 20 15 10 meters
    [ Hits: 1501 | Votes: 5 | Rating: 8.2 ]
Antennas : Windom
  • Homemade Carolina Windom antenna - An off centre fed dipole, with 10 feet of vertical radiator. It needs no tuner on 40m, 20m and 10m by M0UKD
    [ Hits: 1303 | Votes: 1 | Rating: 1 ]
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: 312 | Votes: 1 | Rating: 10 ]

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