Not to mention that you do not have the typical ham single-point failure risk ,
with all the guys in one plane attached to the same anchor!
At 08:19 AM 1/16/2006, Dennis OConnor wrote:
> I have two towers, 130' lightly loaded and 150' with LARGE antenna loads -
> way, way beyond Rohns data for 25G... They are installed with screw anchors
> into sandy ground... They have been up more than ten years without any
> incident or evidence of failure... Storms with recorded gusts to 89 mph have
> happened over those years... In Michigan we have freeze thaw cycles up the
>So why does it work for this clueless ham?
>Well, ol clueless here designed and installed it so that there is a separate
>anchor for every 60 feet of tower, i.e. only two guys per anchor... And the
>steepest guy angle to any anchor is 45 degrees, while it's lower mate is
>roughly 30 degrees... My suspicion is that the tower sections will bow enough
>to gyrate and twist the tower down before the guy anchors will pull out...
>Limiting the load to each screw by keeping the guy wire angle low, is the key
>in my book...
> Got holiday prints? See all the ways to get quality prints in your hands ASAP.
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