[Elecraft] Fw: The use of a doublet

[Russell Tobolic]

You can go straight to www.W2DU.com to get thePDF's.

Russ, N3CO



----- Forwarded Message ----
From: Joe Planisky <jplan at jeffnet.org>
To: Elecraft Reflector <Elecraft at mailman.qth.net>
Sent: Wednesday, July 15, 2009 10:28:32 PM
Subject: Re: [Elecraft] The use of a doublet

For those who might be a little mystified by this discussion of  
feedlines and antennas, I can recommend the series of articles titled  
"Another Look at Reflections" by M. Walter Maxwell (W2DU/W8HKK)  
published in QST between 1973 and 1976.  The whole series is available  
as a single PDF file at http://www.arrl.org/members-only/tis/info/pdf/Reflect.pdf 
  (for ARRL members only, sorry.)  It's a very thorough treatment of  
the subject of transmission lines and impedance matching.  Easy  
reading in some places and a bit tougher in others, it's well worth  
close and careful study if you want to understand transmission lines  
and matching.

73
--
Joe KB8AP



On Jul 15, 2009, at 4:34 PM, Don Wilhelm wrote:

...

> The feedline is a part of the antenna system, and when not matched to
> the antenna feedpoint impedance, it will act as an impedance  
> transformer.
> Your particular antenna and feedline may work just fine, but the same
> antenna with a different feedline length may not work out well.
...
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