5 8 wave dipole antenna

5 8 wave dipole antenna

• Double Extended Zepp Antenna  pop - This double extended Zepp provides 3 db gain over a dipole on the band it is designed for. Each side or leg is about 5/8 wavelength long.
[ Hits: 25855 | Votes: 28 | Rating: 6.35 ]
• VK5AH -HF 4 Bander dipole  pop - A multiband 80-40-20-15 meters dipole wire antenna that can be extended to cover 160 meters too.
[ Hits: 53156 | Votes: 22 | Rating: 6.68 ]
• Squarooka Antenna - squared bazooka for 2 meters band - Sort of similar to the one of the 6m omni. Instead of using twin-lead, this design makes use of a more or less regular double bazooka antenna (coaxial dipole). Your attention shall be drawn to the available standart literature, such as Rothammel. In order to "compute" the dimension, Karl Rothammel mentioned that the total length of the dipole shall be 95% of the free-space wavelength. The short-circuit bridges (closing the folded dipole) are to be placed at a distance-fraction being equal to the velocity factor of the coax cable used, which will be 66% using RG-58 or RG174.
[ Hits: 293 | Votes: 0 | Rating: 0 ]
• 40-80 Half-Extended Double Zepp Antenna - A dual-bander for 80M and 40m. An Extended Double Zepp (EDZ) is a 5/4 wavelength center-fed dipole. This article will introduce the Half-Extended Double Zepp (HEDZ) which has characteristics that a lot of amateur radio operators should find quite interesting
[ Hits: 11181 | Votes: 8 | Rating: 3.87 ]
• 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: 4440 | Votes: 10 | Rating: 5.91 ]
• Half-Square antennas - This doubet antenna is a half wave dipole antenna easy to build, in french
[ Hits: 2881 | Votes: 2 | Rating: 1 ]
• The Short Dipole - There are several ways to reduce the length of a dipole and still use it as an effective antenna. Remember it is the electrical length that determines resonance. The physical length can be considerably less than a half wave length on your desired frequency as determined by 468/f MHz.
[ Hits: 183 | Votes: 0 | Rating: 0 ]
• Half Wave Fan Dipole Antenna - Amateur Radio 40m 20m 15m Half Wave Fan dipole antenna project with part list, pictures and drawing. Includes the option to expand the antenna to cover the 80 meters band
[ Hits: 502 | Votes: 1 | Rating: 1 ]
• Quad Loop Antenna for 50 MHz  new - Building A Full-Wave Quad Loop Antenna for 6 Meters. This is an easy antenna to build and the materials cost about \$15-20. It exhibits 1.8dB gain over a 1/2-wave dipole. Using an open-wire parallel feedline (commonly called ladder line) with an antenna tuner, it tunes up on the 10m band as a 5/8-wave loop as well
[ Hits: 79 | Votes: 0 | Rating: 0 ]
• 6-Band Windom antenna  updated  pop - Theory and construction of a novel trapless center-loaded off-center-fed (cl-ocf) dipole or windom antenna for the 80, 40, 30, 20, 15 and 10m hf amateur radio bands
[ Hits: 49690 | Votes: 41 | Rating: 6.95 ]
• Portable wire antennas - This document describe serveral wire antennas, from the folded dipole, to the common halfwave monoband antenna for those who want to make HF portable operations in holiday.
[ Hits: 658 | Votes: 2 | Rating: 1 ]
• BiQuad Antenna for 144/440 - This is a vertically polarized Broadside and Collinear Array each Loop is a vertically polarized Broadside Array both the right and the left side of the Loop is a bent 1/2 wave dipole working 180 degrees out of phase with the other one and that gives you 4.15dbi of gain by KE4UYP
[ Hits: 7432 | Votes: 14 | Rating: 4.86 ]
• Horizontal Antennas above Real Ground - Antennas are influenced by the effect of the ground and by the type of conductors from which they are constructed. Effects of various types of grounds on a 1.825 MHz horizontal 0.5 wave dipole
[ Hits: 577 | Votes: 0 | Rating: 0 ]

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