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28 lis 2023 · Vertical radiation plots of 1/4 wave vertical (green), 1/2 wave vertical (fuchsia), 5/8 wave vertical (blue), and 3/4 wave vertical (brown) over perfect ground. The 5/8 wave antenna has about 3 dB gain over a quarter wave vertical.
The G3JVL 6 Meter ground plane vertical is a compact antenna that is ideal for portable operations. If needed, it can be disassembled into a very small bundle no longer than the longest element.
10 paź 2014 · The 5/8th wave vertical can be an excellent DX antenna, if a user is willing to operate it over a perfect or near perfect ground radial system. This means at least 50-60 radials that are as long or longer than the antenna is tall.
The design of our dual band vertical antenna is quite simple. The vertical element will be a quarter wave long for the 20m band, which is approximately 5m. This vertical will be mounted about 2m above the ground to optimize its performance. The first radial, also 5m long, will extend outward at an angle of about 30 to 40 degrees from the base ...
HF verticals are a popular antenna option when trees and towers aren’t available. They are the antennas of choice on the low bands for working DX, as most hams can’t get horizontal antennas high enough to be as effective as a vertical on 80M.
9 gru 2018 · The Rybakov 806 Vertical appears to be the brainchild of Enrico IV3SBE from Italy (now 5Z4ES in Kenya). The term, Rybakov, is Russian for “fisherman.”. That’s right…. It’s an antenna with a Russian name designed by an Italian who lives in Africa — truly an international creation.
This Vertical antenna design by David Reid for lower bands focuses on achieving effective DX communication by optimizing the antenna low-angle radiation for long-distance contacts. The design incorporates techniques like linear loading and capacity hats to reduce the antenna's height while maintaining performance, especially on 40m and 80m bands.
