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Re: [TenTec] 160 meters, ten ted 238 tuner, part two

To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Subject: Re: [TenTec] 160 meters, ten ted 238 tuner, part two
From: Mike Bryce <prosolar@sssnet.com>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Wed, 30 Oct 2013 15:54:38 -0400
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
It’s wire, with spacers to make it 600 ohm impedance. Like window line, minus 
the windows.

I can’t really add much more length to the feed side of the antenna, I’ve got 
it spread out across the ceiling now.

mike

Mike Bryce, WB8VGE
 the heathkit shop
SunLight energy systems
J e e p
o|||||||o






On Oct 30, 2013, at 3:30 PM, Richards <jrichards@k8jhr.com> wrote:

> 
>> I added about 10 feet of wire inside the shack and strung it across the 
>> ceiling.
> 
> 
> 
>               Is that coax or window line?
> 
> 
>               What if you add a substantial length
>               of coax...?   What if you, instead, add
>               a substantial length of window line...?
> 
>               
> 
> 
> Looks like hell, but it’s up there
> 
> 
> 
>               Naw... beauty is in the reception.  ;-)
> 
> 
> 
> 
> 
>> The palstar will find a solution at 1.890 now, but the swr is around 2.7:1
>> 
>> The 238, not so much.
> 
> 
>       DX-Engineering says to use as much as 150 -200
>       feet of LMR-400 or similar coax to match its
>       big 43 foot vertical on 160 m.
> 
>       What if you added a serious length, maybe not
>       that long, but more than a few feet, of coax
>       to the mix?  Should be an easy test.
> 
>       Now... I am not advocating this is the best
>       solution... only that it might provide a clue and
>       might allow a match.
> 
>       My local Elmer and I researched the DX-E claim
>       and found it DID allow a match on 160 m, but with
>       a vary narrow useable bandwidth, and at the
>       expense of some substantial additional loss
>       in the transmission line.  He opined it was too
>       much loss versus the benefit of lower SWR.  It
>       came with a super good lecture on how SWR is
>       not the whole story... and that was worth the
>       couple of beers price of admission I paid.
> 
>       We used thE computer program called "TLW" that
>       comes with the ARRL Antenna Book.
> 
> 
> 
>       
>               
> 
>> I don’t mind changing antennas, but swapping out couplers to operate from 
>> one band to the other kinda sucks.
> 
> 
> 
>       Yep...that would get real old... real quick.
> 
> 
> Thanks for the uptake.
> ------------------------ K8JHR -------------------
> 
> 
> 
> 
> .
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