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[TowerTalk] DC ground with a 1/4 goundplane

To: "Tower and HF antenna construction topics." <towertalk@contesting.com>
Subject: [TowerTalk] DC ground with a 1/4 goundplane
From: "Ron W8RJL" <youngron@verizon.net>
Date: Sun, 27 Apr 2014 10:02:31 -0400
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>

----- Original Message ----- From: "Ron W8RJL" <youngron@verizon.net>
To: "Ken" <ken@wa0sbu.com>
Sent: Saturday, April 26, 2014 9:01 PM
Subject: Re: [TowerTalk] DC ground with a 1/4 goundplane


All you need is an RF Choke. You did not mention the frequency of the GP so can't give you any suggestions on coil value. In short, high Z at operating frequency and wire big enough to drain off static charge (a direct lightning hit will melt the wire). You could use a 1/4 wave shorted stub also. BTW a Gamma match does not provide a DC ground unless you omit the capacitor and the capacitor is there for a reason. What are you trying to do??????
73, Ron W8RJL

----- Original Message ----- From: "Ken" <ken@wa0sbu.com>
To: <towertalk@contesting.com>
Sent: Saturday, April 26, 2014 8:42 PM
Subject: [TowerTalk] DC ground with a 1/4 goundplane


   Anyone have any ideas how to get a groundplane at DC ground?  Gamma
match is the only thing I can think of...


73, thanks,  Ken

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