[TowerTalk] Slipp-Nott

[K0DAN]

I have a T10 on a nominal 2" mast. It has been up since around 1999. It was 
put up before SlippNott was available.

I am in Kansas City area, subject to weird WX including occasional ice 
loading and high winds. The T10 does not have much wind load but I think can 
put some leverage on the boom.

A few times in the life of my T10, it (or the mast) slipped, moving as much 
as 45 degrees. It's a heavy tower, rotor, thrust bearing, good hardware, all 
heavy duty install which has withstood a lot of torture. I repositioned T10 
and reset the nuts/bolts, and all has been good for a year. After the last 
bolt-nut reunion, I couldn't move the T10 boom no matter how hard I leaned 
or swung on it. Original T10 hardware was still holding fine. Whatever made 
the antenna (but a smaller VHF array NOT move) is a mystery...go figure.

After that event I thought the SlippNott might be good preventative 
maintenance, but I never did anything about it, and since then have not had 
any wind-related rotation. So I'm also interested in the value-add for 
SlipNott + type of antenna/

73
dan
k0dan

-----Original Message----- 
From: john at kk9a.com
Sent: December 19, 2013 20:45
To: TOWERTALK at contesting.com
Subject: Re: [TowerTalk] Slipp-Nott

The T10 is not a huge antenna, it should not slip on the mast.  Rather than
put a band aid on it, I would look and the mounting plate and clamping.  Is
the plate strong enough or is it bending? What type of mast clamps does this
use?  How many clamps are there?  I am using DX Engineering saddle clamps on
significantly larger antennas and have yet to see any slippage.

John KK9A

To:"towertalk at contesting.com" <towertalk at contesting.com>
Subject:[TowerTalk] Slipp-Nott
From:dave arruzza <w1ctn at yahoo.com>
Reply-to:dave arruzza <w1ctn at yahoo.com>
Date:Thu, 19 Dec 2013 13:07:31 -0800 (PST)
List-post:<towertalk at contesting.com">mailto:towertalk at contesting.com>

To all...
I have a Tennadyne T10 that recently has started to slip on the mast. No
matter
how much I tighten the clamps slippage eventually returns and then I am off
the
bearing the rotor displays.

Tennadyne markets the Slipp-Nott. Does anyone on the reflector have real
world
experience using this item. Does it really work?

73
Dave
W1CTN
Radio Ansonia

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