Hits 

Off Center Fed OCF dipole antenna


Permette di lavorare su piu' bande almeno per la fondamentale e le prime 2 armoniche con una efficienza accettabile
post 13 May 2024
Off Center Fed OCF dipole antenna

OCF dipole antenna Links

14



5 Fundamentals of Off Center Fed Dipoles
Off center fed dipoles OCFs are 1/2 wavelength wire antennas fed at neither the center nor the end

An off center fed ocf dipole
It's a dipole fed off center with a 4:1 balun at the offset feed point

Off Center Fed OCF dipole antenna
Permette di lavorare su piu' bande almeno per la fondamentale e le prime 2 armoniche con una efficienza accettabile


23cm Yagi Antenna building

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

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

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