[TowerTalk] Optimium Tower Height

[john at kk9a.com]

100 feet is fine for 20m and possibly 15m, but probably too high for 10m, 
especially during high sunspot conditions.   Unfortunately you never know at 
what radiation angle signals arrive will arrive and with higher antennas you 
can have some big nulls at possible angles.  So if you're going to have a 
high antenna, you should have a lower one to fill in the nulls.

John KK9A




To: <towertalk at contesting.com>
Subject: [TowerTalk] Optimium Tower Height
From: "Mark Robinson" <markrob at mindspring.com>
Date: Wed, 19 May 2010 19:59:07 -0400
List-post: <towertalk at contesting.com">mailto:towertalk at contesting.com>

I have started my Rohn 45 tower projhect. I am planning to put a Cushcraft
A3WS and a TH7DX atop this tower. I was planning on erecting a 100 foot
tower but a fellow ham suggested that that might be too high. What in the
groups informed opinion would be an ideal height for these antennas?


I appreciate your input


73 Mark N1UK