Hits
3 band mobile antenna
3 band mobile antenna, 10m full size wave/4 whip, quick tilt-down system for 20 and 15 m loading coil change, lower losses and better efficiency than conventional base-loaded car ant
post 12 Mar 2024
Antenna HF Portable Links →
Antenne Quagi 432 MHz pour station portable
The wooden lath is the boom. It is necessary to drill holes 3 mm in diameter for the passage of the elements, except for the two frames that will be maintained by the plexiglass parts
Antenne per hf ad uso portatile
Questa e' una personale soluzione, al fine di utilizzare le HF in portatile piu' precisamente dall'auto sfruttando la carrozzeria come piano di terra e naturalmente
Effective HF Mobile Antennas
One of the problems with HF mobile operation, especially on 160, 80 or 40 Meters is antenna efficiency
HF mobile antenna
This mobile antenna is designed for all HF bands from 10 to 80 meters an proved to be very efficient in my travels in South America
54
The wooden lath is the boom. It is necessary to drill holes 3 mm in diameter for the passage of the elements, except for the two frames that will be maintained by the plexiglass parts
Questa e' una personale soluzione, al fine di utilizzare le HF in portatile piu' precisamente dall'auto sfruttando la carrozzeria come piano di terra e naturalmente
One of the problems with HF mobile operation, especially on 160, 80 or 40 Meters is antenna efficiency
This mobile antenna is designed for all HF bands from 10 to 80 meters an proved to be very efficient in my travels in South America
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