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Antenna windom 10 to 80m


Si tratta di un dipolo con alimentazione asimmetrica,in grado di risuonare dai 10 agli 80 m
post 05 Feb 2024
Antenna windom 10 to 80m

Antenna Multibands Links

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Antena multibanda fuera de centro
Known as "La 14%", "OCD", "OCF" for off-center-dipole, or off center feed or simply Windom, it is an antenna with many variations

A Multi-band Dipole
A half-wavelength long at the lowest frequency you hope to operate. Using the formula 468 ÷ Frequency in MHz

Antenna 1946 da Louis Varney G5RV
Due versioni, una lunga 15.4m che risuona dai 40 ai 10m ed una lunga il doppio 31m che permette un ottimo funzionamento anche in 80m

Antenna morgain 40-80 mt
Antenna bibanda per i 40-80 m. puo' essere fatta anche per i 10 e i 20 metri e puo' fornire ottime prestazioni anche sui 15 metri, ma il pregio rimane la lunghezza dei soli venti metri lineari

Antena Rombica



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