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[TowerTalk] Questions on M2 antennas...

To: <towertalk@contesting.com>
Subject: [TowerTalk] Questions on M2 antennas...
From: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Fri, 3 Apr 2015 18:52:57 -0500
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
I’m thinking of a 2 stack of the M2 15M6DX. Both antennas would be mounted 
across the face of Rohn 55 (rotating tower)... unfortunately their manual 
doesn’t say what the distance is to the mast/balance point and it looks rather 
close to D2. I asked the factory what the distance was and even though its been 
in production for years – they basically said they didn’t know and didn’t have 
a CAD drawing for it! Seems very odd to me ... so instead I’m here asking if 
anyone has one of these up and if they know what the approximate distance is 
from the balance point to the closest element? 

I’m also considering a 40M4LLDD (although the comments by some about linear 
loading tend to worry me – the reviews from those that are using it are all 
positive – albeit without a direct A/B comparison we all know how relative it 
all is) ... and was wondering if anyone has one of these close to either a 20 
and/or a 15. I’m planning on ~12’ from the 20 to the 40 and ~31’ from the 40 to 
the top 15... looking to see if there’s any interaction at all. I can move the 
40 to a different tower with a bit more work IF indeed there is some 
interaction noted. 

Thanks to those that own one for their comments.

Gary K9RX
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