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Shunt-Feeding a Short Tower on 80 and 160m
Run a wire all the way to the top of the tower sections, then measure the impedance at the bottom, then design a matching network to match the resulting impedance
post 12 May 2024
Antenna 80 meter Links →
Isotron antenne Voor de 80m band
For the 80 m band the coil is wound with black 1.5 mm² installation wire of approximately 10 m length. The antenna resonates at 3,630 MHz with this
Inverted-L for 80m & 160m
On 80m very good performances with very acceptable noise level. Made several comparisons with EWE antenna's and magnetic loops - the very weak stations were always readable
Short verticale per i 80 metri
Si tratta di un tubo di plastica del tipo per impianti idraulici, lungo poco meno di due metri 1850 mm
80-75 Meter 4-Square Array
The SWR from 3.5 to 3.9 is below 1.5:1, the F/R of the array is 20dB average and with some signals even better
Antenna for 80 meters in garden 46ft
A 46 ft multi band antenna for small gardens that works well on 80 metersMain bands 50 ohm are 80m / 40m / 30m / 17m / 15m / 12m, Other bands 20m / 10m
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For the 80 m band the coil is wound with black 1.5 mm² installation wire of approximately 10 m length. The antenna resonates at 3,630 MHz with this
On 80m very good performances with very acceptable noise level. Made several comparisons with EWE antenna's and magnetic loops - the very weak stations were always readable
Si tratta di un tubo di plastica del tipo per impianti idraulici, lungo poco meno di due metri 1850 mm
The SWR from 3.5 to 3.9 is below 1.5:1, the F/R of the array is 20dB average and with some signals even better
A 46 ft multi band antenna for small gardens that works well on 80 metersMain bands 50 ohm are 80m / 40m / 30m / 17m / 15m / 12m, Other bands 20m / 10m
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