Hits
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
Projects_Homebrew Links →
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
170
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
23cm Yagi Antenna building Finished antenna at 1275 MHz SWR under 1:1.5 at resonant frequency
50 MHz preamp Gain 26dB with the BFG135 Preamps for 144 and 430 MHz, for 50 MHz, the BFG135a is a cheap transistor and in my view rather strong. It is not easily damaged by static discharge or RF power. FG connection
30 Volt Computer Power Supply Stack A bonus was that i discovered that these did not need a standby load connected to the supply to keep them running just apply mains power and close the Start lead to ground