These values are what M2 recommends - I assume based on their modeling
results AND they are based on my own EZNEC modeling results. They work well
with side and back lobes and achieving a great - well positioned take off
angle. Added gain is in the area of 2.4 db for the 20 and 2.6 for the 15
(referenced to the bottom antenna of course) which is about max for those
heights above ground. Note the 20 is a 50' boom, the 15 a 45'.
g.
-----Original Message-----
From: Richard (Rick) Karlquist
Sent: Tuesday, August 9, 2016 11:21 AM
To: john@kk9a.com ; towertalk@contesting.com
Subject: Re: [TowerTalk] Stacking question
On 8/9/2016 7:03 AM, john@kk9a.com wrote:
I have no HFTA experience however after looking at the stacking distances
from people that have used it I would not recommend it. It puts the beams
way too close together in my opinion.
John KK9A
high for you! I've stuck with the M2 recommendations - and have in
modeling confirmed they work well. That is 60' on 20 and 45' on 15. The
Gary
K9RX
According to my modelling, 60' on 20 and 45' on 15 are near the
MAXIMUM stacking distances, being nearly a wavelength. Did I
misunderstand what you were saying?
Rick N6RK
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