[TowerTalk] VHF beam spacing?

[Steve Katz]

A spacing as small as 40" works okay.  I've stacked 6m and 2m beams on a common mast for many years (since 1966 anyway) and once I reach about 1/2WL on 2m (40") I never notice any interaction as long as the beams are both horizontally polarized.  Vertically polarized beams are a whole different story!
 
WB2WIK/6

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From: towertalk-bounces at contesting.com on behalf of jim Jarvis
Sent: Fri 7/3/2009 12:30 PM
To: towertalk at contesting.com
Subject: [TowerTalk] VHF beam spacing?




Folks,

I've got an M2 6m5x,   5 elements on six meters, which will mount on 
a pole-mounted
rotor.  (G1000dxa).    I want to put a small 2m yagi above that.   
Does anyone have a
sense of minimum spacing required?

Obviously, I want to minimize the mast length above the rotor, so its 
a tradeoff between
isolation and physical load on the rotor mast-clamp.

Thoughts?

N2EA


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