Odd multiples of a full wave length will exhibit voltage minima and current
maxima at the ends. The means from Ohms law that the ends will exhibit
impedance minima, that is you will need a impedance match to higher
values. A 9:1unun will generally give EFHW antennas a reasonable match to
50
Birdsall
Subject: Re: [BVARC] Antenna Tuner
Get an LDG.
On Saturday, March 30, 2024 at 07:31:46 PM CDT, Cal Birdsall via BVARC
wrote:
I’m using an MFJ auto tuner with good results. Long wire and 100 watts. That
said, I don’t have much good to say about MFJ service. The tuner has been
Andre I was having issues with an end fed 73 ft length wire with no unun and was hoping longer length would decrease SWR. it looks like the exact opposite happened…John DW5RDYOn Mar 30, 2024, at 7:20 PM, Andre Pollard wrote:Did you tune the length of the wire? I'm running a end fed with 49:1
Get an LDG.
On Saturday, March 30, 2024 at 07:31:46 PM CDT, Cal Birdsall via BVARC
wrote:
I’m using an MFJ auto tuner with good results. Long wire and 100 watts. That
said, I don’t have much good to say about MFJ service. The tuner has been in
service for about 5 years.
Cal
I’m using an MFJ auto tuner with good results. Long wire and 100 watts. That
said, I don’t have much good to say about MFJ service. The tuner has been in
service for about 5 years.
Cal Birdsall N5BR
Sent from my iPhone
713-419-1977
> On Mar 30, 2024, at 6:53 PM, John D via BVARC wrote:
>
Did you tune the length of the wire? I'm running a end fed with 49:1 unun,
and SWR was terrible with 66' of wire. Ended up taking ~4 feet off, and SWR
is under 1.8 on 40, 20, 15, and 10.
On Sat, Mar 30, 2024, 6:54 PM John D via BVARC wrote:
>
> Does anyone have a recommendation for a *good
Does anyone have a recommendation for a good antenna tuner for a 1/2 wave end
fed wire antenna? Have researched Yaesu FC40, LDG Electronics, MFJ, ham radio
website and have not found anything that has attracted my attention. My SWRs
are way off and according to the website "literature" wire
