quarter wave

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quarter wave

41 links

Antennas : 20M : 20 meter Vertical Antennas Antennas : 20M : 20 meter Yagi antennas
  • 2-Element-Yagis for HF  pop - 2-Element parasitic Yagis for the Shortwave-Bands 10-12-15-17-20-30m. The antennas are feeded with the DK7ZB-match. A quarter-wave choke of coax is grounded at the socket.
    [ Hits: 48180 | Votes: 143 | Rating: 7.2 ]
Antennas : 2M Antennas : 6M
  • 6 meter quarter wave antenna - 6 Meter 1/4 Wave Antenna by Mike Fedler N6TWW. A detailed article with pictures of construction details of this 50 Mhz antenna
    [ Hits: 736 | Votes: 1 | Rating: 1 ]
Antennas : 70cm Antennas : 80M
  • 80 meters Short Dipole - The best antenna is the simple Dipole. If you have height, you even can put up a quarter wave vertical or an inverted, but sometimes you may need shorten version by 4S7NR
    [ Hits: 15131 | Votes: 8 | Rating: 3.62 ]
Antennas : Antenna Calculators
  • Quarter Wave GP Antenna Calculator - Amateur quarter wave ground plane antenna calculator, calculate vertical and radial length
    [ Hits: 4627 | Votes: 21 | Rating: 6.04 ]
Antennas : Array
  • Bobtail dipole - Bobtails are vertical arrays that look like the letter "E" turned 90 clockwise onto its tails. They have 3 quarter wave vertical elements and are one wavelength long. The Half Square is a shortened Bobtail- it has 2 quarter wave vertical elements and is a half wave long.
    [ Hits: 1756 | Votes: 0 | Rating: 0 ]
Antennas : Baluns : 1 to 1 Balun
  • A 1:1 Coaxial Balun  pop - PDF article about a coaxial 1:1 balun, original concept by I4BBE using a quarter-wavelength and the three-quarter-wave adapting sections with the 50-Ohm coaxial cable by I0QM
    [ Hits: 43685 | Votes: 24 | Rating: 7.98 ]
Antennas : Feed Lines
  • The quarter wave transformer - A transient analysis of an inpedance transforming device, by W9DMK, in pdf format
    [ Hits: 879 | Votes: 1 | Rating: 1 ]
  • Making a half wave coax cable - How to make a half l or quarter l coax cable for a specific frequency
    [ Hits: 1337 | Votes: 2 | Rating: 5.5 ]
Antennas : J-Pole
  • T-Hunting Antennas  pop - 4 Element Cubical Quad, Yagis, LZA Circular Quad, Shrunken Quad , quarter wave, J-Pole, beam mounting , changing polarity
    [ Hits: 28961 | Votes: 26 | Rating: 5.01 ]
  • Wireman-J-Poles for 2m-40m  pop - J-Poles with Wireman-cables for the quarterwave matching section, working on VHF and HF bands
    [ Hits: 26171 | Votes: 231 | Rating: 8.31 ]
Antennas : Mobile
  • Mobile Portable Whip Antenna - A simple base loaded quarter wave vertical, which can be used on a car or portable by G3YCC
    [ Hits: 2753 | Votes: 0 | Rating: 0 ]
Antennas : Multiband
  • The Lattin 5 Band antenna - The antenna was named for W4JRW who invented it and holds a patent on the basic principle and uses quarter wave stubs, 80, 40, 20, 15 and 10 meter bands
    [ Hits: 24990 | Votes: 14 | Rating: 7.43 ]
  • Simple HF multiband vertical - A multiband quarter wave vertical antenna that works on 5 bands.
    [ Hits: 1834 | Votes: 2 | Rating: 2 ]
Antennas : Shortwave
  • Harmonically Related Antenna - The HarRe antenna series, multi element quarter wave resonant broadcaters band receiving antenna
    [ Hits: 607 | Votes: 0 | Rating: 0 ]
Antennas : Theory
  • Quarter Wave Verticals - One of the most useful antennas in the repertoire is the Marconi or quarter wave grounded vertical antenna. Its invention made it possible to halve the length of antennas, simplifying communications, especially at HF and below.
    [ Hits: 1687 | Votes: 2 | Rating: 7 ]
Antennas : Vertical

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