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Re: [TowerTalk] 40m monbander and multibander stack question...

To: "'Michael W5NIG'" <>, <>
Subject: Re: [TowerTalk] 40m monbander and multibander stack question...
From: "Chet" <>
Date: Wed, 2 Mar 2011 22:24:31 -0500
List-post: <">>
I have a C31XR at 90 feet and a 2 el XM-240 at 75 feet.  HFTA says the best
height for me into EU on 40M is 70-75 feet. That's the reason for putting
the 40M beam below the tribander.   F-12 recommended that  the separation be
no less that 15 feet. Tower is AB-105,  The 40M beam is on a gate and not on
the same mast.   No issues


Chet N4FX

-----Original Message-----
[] On Behalf Of Michael W5NIG
Sent: Wednesday, March 02, 2011 9:59 PM
Subject: [TowerTalk] 40m monbander and multibander stack question...

  hey gang!   I'm slowly recovering from some tower issues (bad storm, 
tower/antenna damage etc) and am rebuilding my tower stuff.

Anyway have just finished getting my 64' T-500 Trylon freestanding tower 
back up properly with a couple of new sections.

My previous setup was this:

24' mast, down about 8' or so (I think) in the tower to the rotator.  Had a 
Force 12 5BA (20-10 including warc bands) mounted right above
the thrust bearing.

Had an M2 linear loaded 3 ele. 40m monobander about 8 to 10 ft above that 
and 5 or 6 foot above that some phased 2m beams.

Had some issues with the 40m beam (operator error in some assembly) and got 
that fixed, but a MAJOR pain to get to since it was up on the stack.

Anyway this time around I am just about to get the Force 12 5BA fixed up and

have a M2  four element 40m monobander on order and would REALLY like
to put it right above the thrust bearing for easy access just in case I have

to fix any operator errors :)

I don't think I've seen a 40 on bottom and multibander on top, usually the 
other way around.   Anyone done it this way and any issues?  (besides the 
drop in height etc.)

  Thanks in advance,
     Michael  de W5NIG 


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