[TenTec] OT SWR VS Power Loss

[Duane Calvin]

The earlier comment about reading the Handbook is a good one, and if you're
interested in a more in-depth but very readable treatment of the topic, I
recommend "Reflections II" by Walt Maxwell, W2DU.

	73, Duane

Duane Calvin, AC5AA
Austin, Texas
www.ac5aa.com  
 
-----Original Message-----
From: tentec-bounces at contesting.com [mailto:tentec-bounces at contesting.com]
On Behalf Of Jim WA9YSD
Sent: Friday, July 04, 2008 1:00 PM
To: tentec at contesting.com
Subject: Re: [TenTec] OT SWR VS Power Loss

This is interesting, 1:1 is 10w 2:1 is 5w, 3:1 is 2.5w and 4:1 is 1.25w
mismatch that radiates from the antenna if you just use ratios.  So some
where in between is what is actually happening.

Where does all this lost RF go?

Some of it radiates from the coax, ground or where ever it finds a near
resonant
route, or just heat or any other combination.  Mainly trouble. The rule
of thumb like Ken and the Doc say, is anything that makes up 1/8 wave
length, like on cable between
equipment becomes a point of RFI hots spots like a tingle of RF on the
base of the key or what ever. 

This is just interesting.  Every one has some type of a mis match on their
system of one type or another.  It has haunted me time and time again over
the years.

 Keep The Faith, Jim K9TF/WA9YSD



      
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