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
>
>
>
> -- 
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