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Vertical open stub antenna 40/20 meter
Antenna has enough good parameters at the 40 and 20 meter Bands. Antenna does not need any counterpoises. Antenna should place at some distance say more the 1- meter above the ground
post 04 Dec 2024
Antenna Vertical Links →
Screwdriver antenna basic
A Screwdriver is a motorized antenna that extends and retracts, shorting a coil, which adjusts the length of the antenna as it is tuned
BigIR assembly
Below includes a few pictures of my assembly process along with some updated notes and area that are going to be stumbling blocks for anyone trying to put one together
BigIR MK III Vertical with 80 meter coil
The antenna does well on all bands including 60 meters. The SWR is low enough that I don't need to use the antenna tuner
Butternut HF2V 40/80 Meter Vertical
I bought this antenna used, but in new condition, at the moment I'm using 40 radials 11 meters long
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A Screwdriver is a motorized antenna that extends and retracts, shorting a coil, which adjusts the length of the antenna as it is tuned
Below includes a few pictures of my assembly process along with some updated notes and area that are going to be stumbling blocks for anyone trying to put one together
The antenna does well on all bands including 60 meters. The SWR is low enough that I don't need to use the antenna tuner
I bought this antenna used, but in new condition, at the moment I'm using 40 radials 11 meters long
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