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Re: [TowerTalk] tuners and power rating

To: towertalk@contesting.com
Subject: Re: [TowerTalk] tuners and power rating
From: Steve Hunt <steve@karinya.net>
Date: Mon, 29 Nov 2010 17:45:22 +0000
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Here's a display which I developed to characterise tuner capability:

http://www.karinya.net/g3txq/temp/aat_chart.png

Vertical axis is load Reactance in binary steps; horizontal axis is load 
Resistance in binary steps
A cell is white if the tuner fails to achieve a match; the letters 
indicate if it was short of L, short of C etc
Green cells indicate that a match is possible; shade of green shows the 
efficiency
Red cells indicate capacitor over-voltage or excessive power dissipation.

The spreadsheet takes output from the AAT program on the ARRL Antenna 
Book CD.

Steve G3TXQ
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