Re: [BVARC] Antenna Tuner

2024-03-31 Thread Gary Sitton via BVARC 
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 Ohms coax. End feeding a long wire is a tricky business and frought with 
many problems.

73, Gary K5AMH



On March 31, 2024 12:26:24 PM John D via BVARC  wrote:
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 D
W5RDY


On 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 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 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 
antennas need a tuner...


Any feedback would be greatly appreciated.

John D
W5RDY

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Re: [BVARC] Antenna Tuner

2024-03-31 Thread Jeff Greer via BVARC 
I 2nd LDG. I bought one used. When it gave out, I sent it in to LDG. They sent 
me a brand new one.



Sent from my mobile phone



 Original message 
From: Keith Dutson via BVARC 
Date: 3/30/24 8:22 PM (GMT-06:00)
To: BRAZOS VALLEY AMATEUR RADIO CLUB 
Cc: Keith Dutson , Cal 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 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:



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 antennas need a 
tuner...

Any feedback would be greatly appreciated.

John D
W5RDY

Brazos Valley Amateur Radio Club

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Re: [BVARC] Antenna Tuner

2024-03-31 Thread John D via BVARC 
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 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 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 antennas need a tuner...Any feedback would be greatly appreciated.John D W5RDY
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Re: [BVARC] Antenna Tuner

2024-03-30 Thread Keith Dutson via BVARC 
 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 Birdsall N5BR Sent from my iPhone713-419-1977



On Mar 30, 2024, at 6:53 PM, John D via BVARC  wrote:




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 antennas need a 
tuner...

Any feedback would be greatly appreciated.
John D W5RDY
Brazos Valley Amateur Radio Club

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Re: [BVARC] Antenna Tuner

2024-03-30 Thread Cal Birdsall via BVARC 
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:
> 
> 
> 
> 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 antennas need a 
> tuner...
> 
> Any feedback would be greatly appreciated.
> 
> John D 
> W5RDY
> 
> Brazos Valley Amateur Radio Club
> 
> BVARC mailing list
> BVARC@bvarc.org
> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
> Publicly available archives are available here: 
> https://www.mail-archive.com/bvarc@bvarc.org/

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Re: [BVARC] Antenna Tuner

2024-03-30 Thread Andre Pollard via BVARC 
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 *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 antennas need a tuner...
>
> Any feedback would be greatly appreciated.
>
> John D
> W5RDY
> 
> Brazos Valley Amateur Radio Club
>
> BVARC mailing list
> BVARC@bvarc.org
> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
> Publicly available archives are available here:
> https://www.mail-archive.com/bvarc@bvarc.org/
>

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[BVARC] Antenna Tuner

2024-03-30 Thread John D via BVARC 

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 antennas need a 
tuner...

Any feedback would be greatly appreciated.

John D 
W5RDY
Brazos Valley Amateur Radio Club

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http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
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