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Subject:
From:
Colin McDonald <[log in to unmask]>
Reply To:
For blind ham radio operators <[log in to unmask]>
Date:
Fri, 14 Dec 2007 16:38:47 -0700
Content-Type:
text/plain
Parts/Attachments:
text/plain (130 lines)
ah ok.
If i were to use a screw driver antenna, i would just use a tw1 and use the
swr tone feature to get the lowest swr and just use the up and down switch
to raise or lower the antenna.
either way works i guess.
but i would definitely say don't use the internal antenna tuner, its
redundant and will cause more headache then not.

73
Colin, V A6BKX
----- Original Message ----- 
From: "T Behler" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, December 14, 2007 3:42 PM
Subject: Re: ts480 question


>     Colin:
>
> The turbo-tuner helps me tune the screw-driver to resonance by stopping
the
> antenna on its upward or downward ttravel when resonance is reached.
>
> I could tune the antenna manually with the up-down switch that is
provided,
> but have no way of knowing where exactly I am.  That's why the turbo-tuner
> is helpful.  It stops the antenna when a 1.5 to 1 or less SWR is reached.
>
> And, yes, I do occasionally use the screw-driver on 80 meters, and have a
> 102-inch whip for that purpose.
>
> Not a perfect system to be sure, but it gets me out on 20, 40, and 80.
> Still am having trouble tuning the antenna on 10 and 15 meters, but I
think
> that's because it's interacting with something on the RV frame.
>
> Will try more grounding to deal with that problem.
>
> 73 from Tom Behler:  KB8TYJ
>
>
>
> ----- Original Message ----- 
> From: "Colin McDonald" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Friday, December 14, 2007 4:22 PM
> Subject: Re: ts480 question
>
>
> > You probably don't want to use two tuners.
> > For various reasons, but your turbo tuner should tune the screw driver
to
> > a
> > flat match.
> > You lose power through the radios internal tuner, and through an
external
> > tuner, so adding the internal tuner will just limit your out going rf
that
> > much more.
> > And since your mobile with a small antenna, the more rf you can get out
to
> > the antenna the better.
> > I thought the screw driver was self tuning from 2M to 40M?
> > if so then why the need for  a tuner? are you wanting to work 80M as
well?
> > 73
> > Colin, V A6BKX
> > ----- Original Message ----- 
> > From: "T Behler" <[log in to unmask]>
> > To: <[log in to unmask]>
> > Sent: Friday, December 14, 2007 11:26 AM
> > Subject: ts480 question
> >
> >
> >> Hi, all.
> >>
> >> Well, I am anxiously awaiting the arrival of my TS480, and just thought
> >> of
> > a
> >> question I could use some help with.
> >>
> >> I'll do my best to verbalize this question in a way that hopefully will
> > make
> >> sense.
> >>
> >> As you may recall, I'm going to use the TS480 as my main HF rig in our
> > motor
> >> home.  I have a Predator screw-driver-type antenna on the back of the
> > motor
> >> home, and I use something called a Turbo-tuner, made by N2VZ Enterprise
> >> to
> >> tune the screw-driver for resonance on my chosen operating frequency.
> >>
> >> The Turbo-tuner is interfaced with the Ts480 via two cables--one is an
> > RS232
> >> cable which goes to the front of the radio, and the other is a cable
that
> >> connects to the AT port on the back of the rig.
> >>
> >> I am wondering if connecting the turbo-tuner in this way will
> > automatically
> >> disable the auto-tuner in the TS480.  Or, can the auto-tuner still be
> >> used
> >> to further "fine tune" the antenna once it has been tuned by the
> >> turbo-tuner.
> >>
> >> Thanks, and 73 from Tom Behler:  KB8TYJ
> >>
> >>
> >>
> >> -- 
> >> No virus found in this incoming message.
> >> Checked by AVG Free Edition.
> >> Version: 7.5.503 / Virus Database: 269.17.2/1184 - Release Date:
> > 12/14/2007 11:29 AM
> >>
> >>
> >
> >
>
>
>
> -- 
> No virus found in this incoming message.
> Checked by AVG Free Edition.
> Version: 7.5.503 / Virus Database: 269.17.2/1184 - Release Date:
12/14/2007 11:29 AM
>
>

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