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Re: [TowerTalk] Advice on Old TV Antenna Tower

To: Jim Thomson <jim.thom@telus.net>, "towertalk@contesting.com" <towertalk@contesting.com>
Subject: Re: [TowerTalk] Advice on Old TV Antenna Tower
From: "Cox, Norman R." <nrc@mst.edu>
Date: Sat, 1 Jul 2017 04:27:00 +0000
List-post: <mailto:towertalk@contesting.com>
  Jim is exactly right -- describes the tower I have perfectly.

Norm


________________________________
From: TowerTalk <towertalk-bounces@contesting.com> on behalf of Jim Thomson 
<jim.thom@telus.net>
Sent: Friday, June 30, 2017 10:08:56 PM
To: towertalk@contesting.com
Subject: [TowerTalk] Advice on Old TV Antenna Tower

Date: Sat, 1 Jul 2017 00:44:32 +0000
From: "Cox, Norman R." <nrc@mst.edu>
To: "towertalk@contesting.com" <towertalk@contesting.com>
Subject: [TowerTalk] Advice on Old TV Antenna Tower

< Thanks to all of you for your advice.  I get the message.

     The tower measures 28 inch sides at the base.  The cross members are 
riveted.  The sections are bolted.  The tower is galvanized, but shows some 
rust on the top section.  It is free-standing without any guys or house bracket.

     We are putting together a list of possible alternatives that don't involve 
climbing to the top.  Maybe an idea will come up that will allow use of the 
tower.

Thanks again,

Norm
KE0ZT

##  It appears his tower is a 55 ft  Delhi.  They came in 8 ft sections..with 
aprx a 4 inch overlap.  Bottom section was aprx  29 inch C to C on the bolts.  
Aprx 16-18 inch wide at the top.    Cross pieces are Xs...and all riveted.   
Thats normal for it to start the wobble at the 45 ft level.    Even the bigger 
Trylon  free standing towers will do this...and esp if you weigh 200 lbs.   The 
legs are sorta quasi U shaped...with 2 bolts per leg, one above each other on 
the upper sections...and  3 per leg on the lower sections.
Seen from the ground by a 2nd person, 2nd person wont see it budge.   But the 
fellow on the tower will swear its moving a bunch.     They all do that... 
unless guyed.   A buddy of mine who had guyed  rohn-25 at the time, freaked out 
when he climbed
mine back in the mid 70s....  swore it needed guys...they dont at the 55 level. 
   Some sections will develop surface rust..and most dont.

Jim  VE7RF

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