[TowerTalk] Straightening 45g tower base

[john at kk9a.com]

Some of the tower products that I have purchased were also very  
unprecise.  I understand shimming the flange to plum the sections but  
what are you re-drilling?

John KK9A


Blake N6BNS wrote:

That’s right, it’s the solid rod version. At the moment I’m only  
looking at putting up a VHF/UHF vertical (Diamond X300NA), but that  
could change someday so I’d like to get this as right as possible.

Thank you to everyone for your comments and suggestions! I decided to  
use some washers on the low leg to bring the tower closer to plumb,  
and then drill new mounting bolt holes 90° from the existing ones.  
Interestingly, it turns out the base wasn’t too far off, but the first  
segment appears to have a poorly manufactured leg—the tilt followed  
one leg as I tried the segment in all three orientations.

Now the tower is no more than 0.3° from plumb in any direction.

Let’s hope the rest of the segments don’t suffer from the same issue…

-- 
Blake Sobiloff (N6BNS)
Reno, NV (USA)