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[TowerTalk] N4JBK comments re: M2 Q.C.

To: <>
Subject: [TowerTalk] N4JBK comments re: M2 Q.C.
From: "Richard W. Ehrhorn \(W0ID\)" <>
Reply-to: "Tower and HF antenna construction topics." <>
Date: Fri, 12 Feb 2010 17:29:59 -0500
List-post: <">>
Joe N4JBK ...

Don't know where the comments you mention about M2 quality came from, but my 
experience has been different. 

QTH at W4ETO/W0ID from 1990-2007 was at 10,700 feet elevation on the 
Continental Divide in the central Colorado Rockies. On Halloween night, 1997, a 
"100-year" windstorm clobbered my old "duo-bander:"  six elements 20m homebrew 
on a 60' boom -- extended to 100' and end-loaded to resonate on 75/80m. Also 
trashed my 40-2CD and a 15m beam.

I'd seen M2's construction at Dayton and was impressed. So I upgraded to an M2 
6el 20m/60' boom @ 81' and an M2 4el linear-loaded 40m/42' boom @ 92'. Stacked 
two KT36XA's @ 37' and 73' on another tower, turned by an Orion. All worked 
like gangbusters & survived numerous contests, DXpedition pileups, and mountain 

>From 1999 until dismantling everything in 2007 for our move to Virginia, I 
>never had a significant problem. Joints still were tight. Strong, gusty winds 
>are pretty common up there, but never rotated an element or boom mount even a 
>little. Took all 4 beams apart just enough to fit in a 20' trailer & hauled 
>them to W4. Only maintenance during re-assembly has been routine: clean old 
>Penetrox off joints with WD-40 and apply fresh. 

Expect to have it all back up at almost 2 miles lower altitude - but with both 
towers lengthened a bit and rotating - this spring. After the 20-year-record 
snowfall melts. { ;-))   

Bottom line:  IMHO, Mike's electrical designs and mechanical construction are 
excellent and very durable. 

Dick  W4ETO (W0ID)  

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