To: | towertalk@contesting.com |
---|---|
Subject: | Re: [TowerTalk] Transmission Line theory |
From: | Kevin Schmidt <w9cf@ptolemy.la.asu.edu> |
Date: | Wed, 2 Jul 2008 08:18:33 -0700 |
List-post: | <towertalk@contesting.com">mailto:towertalk@contesting.com> |
A quick numerical calculation for squares of side 2cm with 3cm center-center gave me Z0=127.3 Ohms. This assumes perfect conductors. The approximate equation for large spacing is Z0 -> 120*ln(2*separation/(1.18*side)) and gives 112 Ohms; so it is about 10 percent off. I hope this helps, 73 Kevin w9cf _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contesting.com/mailman/listinfo/towertalk |
<Prev in Thread] | Current Thread | [Next in Thread> |
---|---|---|
|
Previous by Date: | Re: [TowerTalk] Rohn 25 parts needed, Dennis Vernacchia |
---|---|
Next by Date: | Re: [TowerTalk] Open wire feed line length, Alfred Frugoli |
Previous by Thread: | Re: [TowerTalk] Transmission Line theory, Paul Baldock |
Next by Thread: | [TowerTalk] For Sale Yaesu GS 800 SA Control Box, Dennis Ventler |
Indexes: | [Date] [Thread] [Top] [All Lists] |