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30 meter receiver low power qrss beacons and psk31
That is possible by using a low CW speed. QRS mean reduce your CW speed. With that extra S of QRSS they want to indicate that it is really a very low CW speed
post 20 Apr 2024
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300 ohm ladder line convertable antenna
300 ohm twin lead and can be used through 10 meters maybe even 6 meters with an antenna tuner
QRP QRSS 10 metri
Una parabola da 60 cm Test messa a punto di trovare il Fuoco per LNB
Realizzazione di un caricabatterie NiMH a corrente costante
Dovendo ricaricare alcuni pacchi batteria che ho rifatto per un apparato portatile FT530 YAESU
Rele Coassiali Modifiche
In commercio esistono una gran quantita' di rele per il normale uso elettrico,useremo proprio questi opportunamente modificati
175
300 ohm twin lead and can be used through 10 meters maybe even 6 meters with an antenna tuner
Una parabola da 60 cm Test messa a punto di trovare il Fuoco per LNB
Dovendo ricaricare alcuni pacchi batteria che ho rifatto per un apparato portatile FT530 YAESU
In commercio esistono una gran quantita' di rele per il normale uso elettrico,useremo proprio questi opportunamente modificati
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 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 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