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A portable vertical antenna for 160m
it's just under 3Mtrs long. It is mounted on the roof of the car on a cross member bolted to the luggage rails
post 24 Sep 2024
Antenna HF Portable Links →
Facilities of the Portable Station
Antenna Tuner MIZUHO KX-S9 Pai-C type for a single wire antenna
High Efficiency Extended Length Mobile Antenna
I came up with an antenna that extended only 1.65 meters or about 5 feet 4 inches above the top of the vehicle. It had a calculated efficiency of 42% when compared to a half-wave dipole
Holidays vertical
The antenna seems to be working well. I found 40m extremely silent
Antenne verticale de campagne
The base is fixed on a metal pipe stuck in the ground here about 50 cm in the ground and 30 cm outside
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Antenna Tuner MIZUHO KX-S9 Pai-C type for a single wire antenna
I came up with an antenna that extended only 1.65 meters or about 5 feet 4 inches above the top of the vehicle. It had a calculated efficiency of 42% when compared to a half-wave dipole
The antenna seems to be working well. I found 40m extremely silent
The base is fixed on a metal pipe stuck in the ground here about 50 cm in the ground and 30 cm outside
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