vertical rte

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vertical rte

57 links

Antennas : 160M
  • A Potpourri of 160-Meter Verticals - A potpourri of 160-Meter vertical antennas and modeling issues, inverted-L, 3-element parasitic array, 1/4-wavelength monopole
    [ Hits: 3647 | Votes: 0 | Rating: 0 ]
Antennas : 20M
  • Cedevita-20 Antenna - The Cedevita-20 is a hybrid monoband antenna, the result of merging the radiator of a shortened vertical with one element of a dipole. It fits on most balconies and must be hung from the ceiling. By ik1zyw Paolo Cravero
    [ Hits: 5374 | Votes: 3 | Rating: 5.33 ]
Antennas : 20M : 20 meter Vertical Antennas Antennas : 40M : 40 meter Loop Antennas Antennas : 40M : 40 meter Vertical Antennas 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: 15827 | Votes: 9 | Rating: 3.33 ]
  • 80m Vertical Antenna with Folded CounterPoise - A very efficient 80 meter Counterpoise antenna designed to reduce ground losses from inadequate radial systems beneath inverted L antennas, a project by DM2GM and DM4IM based on the original K2AV antenna concept.
    [ Hits: 1088 | Votes: 2 | Rating: 7 ]
Antennas : Antenna Calculators
  • Quarter Wave GP Antenna Calculator - Amateur quarter wave ground plane antenna calculator, calculate vertical and radial length
    [ Hits: 4839 | Votes: 24 | Rating: 6.04 ]
  • Online Antenna Calculator - Java script antenna calculators for ground planes, half wave verticals, quad antenna, 5/8th wave vertical antenna, dipole and inverted vee antennas
    [ Hits: 4455 | Votes: 11 | Rating: 6.01 ]
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: 1911 | Votes: 0 | Rating: 0 ]
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: 2911 | Votes: 0 | Rating: 0 ]
Antennas : Multiband
  • Vertical antenna for Vacation - Vertical Vacation Antenna for 80, 40 and 20 Meter-Band, by Herbert OE3BMB This antenna is a full size λ/4 for 20m and 40m band, and a shortened λ/4 for the 80m band. Generally on the 40m band the SWR is under 1,6. In 80m and 20m band at the resonant frequency the SWR is about 1,1.
    [ Hits: 5035 | Votes: 4 | Rating: 8 ]
Antennas : Portable
  • Portable antenna comparison - Common antennas for portable use compared. A vertical antenna, a dipole antenna an inverted V and a fan dipole all at same height.
    [ Hits: 771 | 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: 1759 | Votes: 2 | Rating: 7 ]
  • QEX Ground System Experiments - N6LF series of experiments on ground systems for vertical antennas. That series of reports was converted, with some modifications, into a series fo seven articles in QEX magazine.
    [ Hits: 790 | Votes: 1 | Rating: 8 ]
Antennas : Vertical
  • Balloon-supported verticals - Using balloons to raise lengths of wire can be great fun - as well as making it possible to work the DX on 136 kHz from small gardens.
    [ Hits: 1803 | Votes: 1 | Rating: 10 ]
  • Shortened vertical antenna for 7 Mhz - A simple drawing of a shortened antenna for 40 meters by using a PVC tube
    [ Hits: 3218 | Votes: 2 | Rating: 4.5 ]
  • Quarter Wave 80 m vertical Antenna - Homebrew a 1/4 wave 80 meter vertical using aluminium tubing
    [ Hits: 2434 | Votes: 6 | Rating: 7 ]
Manufacturers : Accessories
  • HiZ-Antennas - High impedance amplifiers for shortened vertical antennas, Array matched and Optimized 15dB Preamplifier
    [ Hits: 857 | Votes: 2 | Rating: 6 ]
Operating Modes : Ham Radio Balloons
  • Balloon Antennas - Launching a balloon or kite supported tall vertical or protracted inverted L.
    [ Hits: 2961 | Votes: 4 | Rating: 5 ]

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