[TowerTalk] guy posts math

[Steve Maki]

On 7/21/2015 9:40 AM, Jim Thomson wrote:

> ##  around here its all clay below grnd, but 3 miles south of me its loamy soil.   But they still
> use the 10%  of total height  + 2 ft rule in either location.  Bell, Verizon AT+T ,etc, still use the same format.

That rings a bell, I think it's always been 10% + 2' around here 
(Detroit area) as well. Makes sense - if you're standing up a 6' pole 
you want more than 7.2" in the ground :-)

-Steve K8LX