The QRPer Board

https://www.theregister.com/2025/04/17/ ... ne_weapon/

used to "fry" drones

as for the multiband version, it uses a trapped dipole (straight) snd a reflector for each band made using wire
performance is below the one from the monoband version

Interesting, I'd never processed that the "Jungle Job" version has an angled driven element. I've previously built a G4ZU beam with a straight driven element and bent reflector. (In fact, on the G4ZU tribute page, that description is used, even though the figure shows the reverse!) An int...

zome interesting amd useful informations https://practicalantennas.com/applications/nvis/ notice that the observations at the above link also apply to several antennas with horizontal polarization not just dipoles and then, this map https://practicalantennas.com/wp-content/uploads/2023/01/Dipole-Azi...

The Fri-Match is derived fron the Z-match, full story here

https://www.pa0fri.com/ATU/FRImatch/FRImatcheng.htm

also see

https://www.hamradiosecrets.com/homebre ... tuner.html

although the links at previous post carry all the needed infos

Covers all bands from 80m up w/o any band switching, for QRP it can be built using polyvaricons, in effect the hard to find parts are the twin air variable capacitors full informations here https://www.pa0fri.com/ATU/FRImatch/FRImatcheng.htm and here is a nice version http://dl4cs.de/funktechnik/ant...

another alternative may be the G7FEK antenna...

https://www.g7fek.co.uk/blogus/newsshow ... nten_29507

and

https://rsars.org.uk/wp-content/uploads ... s-1-31.pdf

NEC model here

https://q82.uk/g7fek

Hi All, I'm looking to add a second HF antenna in the garden and am considering a ZS6BKW to run North-South and complement my EFHW running East-West. Familiar with the concept of the ZS6BKW and its advantages over the G5RV (which I used back in the '90s); I'd appreciate any comments or views from t...

further infos

https://wb3gck.com/2018/12/09/revisitin ... -vertical/

and add this

https://www.g4akc.co.uk/ground-tuning-units-gtus/

between the antenna and the ground stake or the radials