To: | kjones@virtualcohesion.com, topband@contesting.com |
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Subject: | Re: Topband: Shunt feed short tower |
From: | Earl W Cunningham <k6se@juno.com> |
Date: | Mon, 5 Jun 2006 21:07:59 -0700 |
List-post: | <mailto:topband@contesting.com> |
Kelly's (N0VD) tower is too short to shunt feed on 160m with a gamma (single capacitor) match, as he's been trying to do unsuccessfully. The answer for a tower that short is to use an omega (two capacitor) match. I suggest a shunt wire tap height of 35 feet or so. An omega match will tune virtually anything and it is not necessary for the tower to be resonant at any frequency when using this method. Just install the shunt wire and the two variable caps and tune them for lowest SWR on the desired frequency. 73, de Earl, K6SE _______________________________________________ Topband mailing list Topband@contesting.com http://lists.contesting.com/mailman/listinfo/topband |
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