((Some content deleted))
Your point is that the better the feedline, the lower the losses, and open
wire feedline is best.
All true and I totally agree.
The point is, if you use the very best feedline you can, you can limit
losses and have the tuner in the shack and all will be well.
73 de Gary, AA2IZ
----- Original Message -----
From: "Michael Tope" <W4EF@dellroy.com>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Friday, January 20, 2006 6:33 AM
Subject: Re: [TenTec] What makes the 238 good or any other tuner good?
> ----- Original Message -----
> From: "Gary Hoffman" <ghoffman@spacetech.com>
>
> >I think the point being missed here by one of the posters is that if the
> > feedline is really excellent....like the 1/2 inch Heliax, or perhaps 450
> > ohm
> > transmitting ladder line, or less radically, perhaps Times Microwave
> > LMR-400, the losses in the feedline are trivial, no matter the
mis-match.
> >
> > Then having the tuner in the shack is extremely handy, and results, as
> > indicated, in only trivial losses.
> >
>
> Yes and no, Gary. Using good coax certainly helps, but as the
> feedpoint impedance gets very high (like what you get when
> operating a 1/2 wave dipole on an even harmonic) then losses
> skyrocket even with very good 50 ohm coax, whereas the losses
> stay relatively low with open wire line. The program TLW that
>
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