[TowerTalk] 40 and 20 at 15 ft apart

[john at kk9a.com]

I have modeled 20m and shortened 40m beam interaction and with my antennas 
and the interaction was very minimal when pointing the same direction and 
very noticeable when pointing 90 degrees apart.  The antennas in your 
example may react differently, but I would recommend trying the same 
direction first.

John KK9A / P40A


To: towertalk at contesting.com
Subject: [TowerTalk] 40 and 20 at 15 ft apart
From: "Felipe J. Hernández" <fhdez at vpnet.net>
Date: Sun, 28 Aug 2011 19:13:31 -0400
List-post: <towertalk at contesting.com">mailto:towertalk at contesting.com>

Guys,

Theres a great  benefit from turning the antennas 90 deg off.
but Ive heard that, when you have a 40 and a 20 on the same tower, the
interaction
is never dissipated by the 90 deg offset.

Is that true?

Thinking of setting up a xm240 with a 3 or 4 el force 20 mtr monobander
abt 15 ft apart..

Thanks

Felipe
NP4Z