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3 band mobile antenna


3 band mobile antenna, 10m full size wave/4 whip, quick tilt-down system for 20 and 15 m loading coil change, lower losses and better efficiency than conventional base-loaded car ant
post 12 Mar 2024
3 band mobile antenna

Antenna HF Portable Links

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Antenne Quagi 432 MHz pour station portable
The wooden lath is the boom. It is necessary to drill holes 3 mm in diameter for the passage of the elements, except for the two frames that will be maintained by the plexiglass parts

Antenne per hf ad uso portatile
Questa e' una personale soluzione, al fine di utilizzare le HF in portatile piu' precisamente dall'auto sfruttando la carrozzeria come piano di terra e naturalmente

Effective HF Mobile Antennas
One of the problems with HF mobile operation, especially on 160, 80 or 40 Meters is antenna efficiency

HF mobile antenna
This mobile antenna is designed for all HF bands from 10 to 80 meters an proved to be very efficient in my travels in South America


Take off angle of horizontal antenna

Take off angle of horizontal antenna For horizontal polarization, the electric field will move sideways on a horizontal plane, while for vertical polarization it will oscillate up and down on a vertical plane

Rx antennas 4Square Rx Vertical Array

Rx antennas 4Square Rx Vertical Array My frequency design of 1.825 MHz a 90 degrees line would be 33,70 metersinstead of the previously calculated 33,27 m

Calculo da Antena Bazooka

Calculo da Antena Bazooka A double bazooka antenna is a combination that has a complete coaxial wave multiplied by its velocity factor and a total end-to-end length of 1/4 wave for each side affected by another driver shortening facto