That certainly is tragic, although I'm greatly relieved that it doesn't
appear anyone was hurt.
It is truly amazing to see the thought and effort you put into that
antenna, and a tremendous shame to have it come down like that. I hope
you decide to rebuild instead of finding a different hobby.
This is one case where being able to post the pictures to the reflector
would have been desirable. I'm sure you don't want to be bothered by
that, so if anyone wants to see them I will forward them for you. For
those interested, send me a private reply ... not to the list.
Take care,
Dave AB7E
On 8/28/2019 6:12 PM, Doug Ronald wrote:
I'm too upset to do a complete post mortem, but the antenna lowered to about the
point in the attached image, and then there was a failure in either the 1/2"
wire rope, or the wire rope slipped out of the 4 clips I had at the antenna end. My
calculated tension in the cable was 14,900 pounds with the antenna at the horizontal
position, but at 45 degrees, the tension would have been only 11,000 pounds or so.
The clips were to be torqued to 65 ft. lb. but not overtightened such that the
wire rope is crushed. I don't have a torque wrench, so I guessed at the 65 ft.
lbs. I guess I didn't have them torqued enough, but there was no slippage when
I put the antenna up a couple years ago using the same rope, and the same clips.
-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of David
Gilbert
Sent: Wednesday, August 28, 2019 16:51
To: towertalk@contesting.com
Subject: Re: [TowerTalk] High VSWR
That story would be a lot more interesting if you actually explained what
happened.
Dave AB7E
On 8/28/2019 3:30 PM, Doug Ronald wrote:
Hmmm, my VSWR came up a little high this afternoon, see my QRZ page to
see why.
Actually, I shouldn't joke about it - I'm totally devastated.
73 all,
-Doug Ronald, W6DSR
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