Page 1 of 1
Another approach to the EFHW
Posted: Fri May 09, 2025 7:47 pm
by Andrew (grayhat)
And one which may fit portable operations ,(SOTA/POTA/...)
I'm referring to the ideas by AA5TB found here
https://www.aa5tb.com/efha.html
which are really good (notice the "tuned" 49:1)
Re: Another approach to the EFHW
Posted: Fri May 16, 2025 7:36 pm
by KL7MJ
I've used AA5TB's design for years - I don't think the current multiband approach existed when I first started looking for EFHWs.
The plus of his design vs. the more common FTx-43 multiband design is that you can tune it for best SWR for each band. The only downside is that it is a one-band-at-a-time design. I carried wires for each band that I wanted to work.
My original has an SO-239 connector, but I've been thinking about making one (or more) with BNC connectors.
73,
Mike, KL7MJ
Re: Another approach to the EFHW
Posted: Fri May 16, 2025 8:16 pm
by Andrew (grayhat)
You're right Mike, the advantage of AA5TB approach is that it could be used for a vertical (aluminium) antenna and it will ease "tuning" for the fundamental