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[TowerTalk] 40m Yagi @ 66' vs 92'

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Subject: [TowerTalk] 40m Yagi @ 66' vs 92'
From: wstrahl@nwsca.nw.lucent.com (wstrahl@nwsca.nw.lucent.com)
Date: 3 Mar 99 14:02:00 -0600
I currently have a 89' US Tower, which I usually park at 80' for greater
strength ... less stress on me :-) .... with a KT-34XA at 81' and a
2 el shorty 40 at the mast top at 92'.  I'm contemplating some antenna
changes which would necessitate putting the 40m yagi on a ring-rotor on
the fourth tower section at approx. 66' up.  Modelling and gut-feeling
tell me that I probably wouldn't notice a DISCERNABLE difference in
performance because the 40m ant really wasn't high enough to be working
optimally to begin with.

Does anyone have any experience with actual/perceived performance
differences at these height differences ?  All comments appreciated..

Wayne - W9II    wstrahl@nwsca.nw.lucent.com



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