To George and All,
George - I read your first email on the conservation of energy and agree in
part, but my experience with non-resonant antennas has proven that a
resonant antenna will nearly always be a more efficient radiator than a
non-resonant antenna. Case in point. 80 meter dipole, 5 feet off the
ground, will transmit much better than my 8 foot whip on the rear of my car
with an tuner. Mainly because of the loss (heat) being consumed in the
tuner and feed line. Take a non-resonant antenna connected to a tuner with
1000 watts and feel the tuner/feed line and even the antenna itself will
become warm or even hot, due to system mismatches.. It will still work,
but at a much lower efficiency..
Just my experience.
Thanks and 73's,
Dudley
WA5QPZ
----- Original Message -----
From: "George, W5YR" <w5yr@att.net>
To: <tentec@contesting.com>; <aa4nu@ix.netcom.com>
Sent: Tuesday, October 21, 2003 11:08 AM
Subject: Re: [TenTec] Re: Rudimentary SWR question...
>
> ----- Original Message -----
> From: "Bill Fuqua" <wlfuqu00@uky.edu>
> To: <aa4nu@ix.netcom.com>; <tentec@contesting.com>
> Sent: Tuesday, October 21, 2003 10:05 AM
> Subject: Re: [TenTec] Re: Rudimentary SWR question...
>
>
> > I see now that the problem is that some of you are caught in an old on
> > going argument between non-resonant antennas and resonant antennas.
>
> <skip>
>
> > What is it about resonance, conservation of energy, equilibrium and Q
that
> > makes this discussion do difficult.
>
> Not a thing, Bill, other than the fact that some folks confuse the
physical
> size and length of a wire antenna with its capture area, which relates to
> gain and not to size.. Using that erroneous concept, they cannot see how a
> shorter antenna can perform virtually the same as a long antenna. A few
> minutes with any good modeling program makes the point. That, plus a
little
> common sense in applying the Law of Conservation of Energy.
>
> Thanks for your note and perspective.
>
> 73/72, George
> Amateur Radio W5YR - the Yellow Rose of Texas
> Fairview, TX 30 mi NE of Dallas in Collin county EM13QE
> "Starting the 58th year and it just keeps getting better!"
> w5yr@att.net
>
>
>
>
> _______________________________________________
> TenTec mailing list
> TenTec@contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec
|