Some poles have straight grain, some twist.  
Not anything you can do that I know about.  Sector antenna?

From: Adam Moffett 
Sent: Tuesday, September 13, 2016 2:44 AM
To: Animal Farm 
Subject: [AFMUG] Wooden pole twisting

I've got a 70' (61' AGL) class 3 pole with an AP and backhaul on it.  It's been 
in the ground about 3 years now.

This past spring we noticed the signal drop slowly on the backhaul over the 
course of a month.  A climber went up and adjusted it by about 9 degrees, but 
he said the mount was tight when he got there.  This past month the RSSI on the 
backhaul has been slowly dropping again. 

The humidity here tends to shoot way up in the summer and drop in the winter.  
I'm supposing this beast must be twisting as it soaks up moisture and then 
dries out again.

Is this a problem that might diminish as the pole ages, or is there perhaps any 
possible remediation?  I guess the permanent fix is a real tower or a steel 
pole, but I guess I'm hoping that one of you old phone guys knows some magic 
trick.  Seems like if there was a wire attached to this pole, that a 9 degree 
twist would put some wicked tension on it.

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