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Quarter-Wave Vertical Antenna Length Calculator
A quarter-wavelength antenna is easy and inexpensive to build and can be an effective antenna with a low angle of radiation
post 01 Feb 2024
Antenna 40 Meter Links →
A shortened 40 meter rotary dipole
After using verticals for 40 meter and last year a delta loop this year I choose to make a rotatable dipole
40 meter top loaded vertical 7 MHz
My homebrew vertical antenna worked great for FD netting me 60 contacts in 23 U.S. states
40m Band, portable dipole
Scale 1:100 all dimensions in meters. Overall length 16.6 m, f = 7 MHz
40m Standard half-wave Dipole Antenna
My 40m coaxial dipole antenna worked surprisingly well, considering how many compromises it was dealing with
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After using verticals for 40 meter and last year a delta loop this year I choose to make a rotatable dipole
My homebrew vertical antenna worked great for FD netting me 60 contacts in 23 U.S. states
Scale 1:100 all dimensions in meters. Overall length 16.6 m, f = 7 MHz
My 40m coaxial dipole antenna worked surprisingly well, considering how many compromises it was dealing with
Antenna splitter per VHF-UHF per quattro ricevitori Chi dispone di una sola antenna e vuole collegarvi più di un ricevitore necessità di uno splitter
Amateur radio kits by Kanga US
50MHz to 28MHz RX Converter The concept of the rx converter is quite simple and nothing really new. the local oscillator is a standard colpitts crystal oscillator producing the 22mhz lo signal