[TowerTalk] Optimium Tower Height

[N2TK, Tony]

Mark,
Why don't you get a copy of HFTA and run the lots for your QTH. That will
give you a good idea what the pattern will be for different heights. It
takes into account your terrain.

73,
N2TK, Tony

-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com] On Behalf Of W0MU Mike Fatchett
Sent: Wednesday, May 19, 2010 10:50 PM
To: TOWERTALK at contesting.com
Subject: Re: [TowerTalk] Optimium Tower Height

Maybe K4XS will chime in but we were having a discussion on this subject and
I think 70 ft might be a better height.  If you had a 40m beam in the mix
then you might want the extra height.

I have a 70 ft self supporting tower with a 4 ele SteppIR at 72 ft and a 2
ele 40 about 12 ft above it and it works very very well.

Mike W0MU 


CC Packet Cluster W0MU-1
W0MU.NET or  67.40.148.194

"A slip of the foot you may soon recover, but a slip of the tongue you may
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-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com] On Behalf Of john at kk9a.com
Sent: Wednesday, May 19, 2010 8:15 PM
To: TOWERTALK at contesting.com
Subject: Re: [TowerTalk] Optimium Tower Height

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 

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