[TowerTalk] new tower

[K7LXC at aol.com]

In a message dated 7/13/2007 6:35:24 P.M. Pacific Daylight Time,  
towertalk-request at contesting.com writes:

>  What is the advantage of a pier pin base?


    It equalizes the compressive forces coming down  the tower legs. Drive 
down the road and you'll see big commercial microwave  towers with pier pin 
bases. They also have 6-way guying. 
 
    For big loads like microwave dishes (a 10' dish  has about 50 sq.ft. of 
windloading), it's pretty SOP. For typical ham towers  and loads, it's not as 
necessary. 
 
    For construction purposes, burying the base in  concrete is much easier 
and faster IMO. 
 
Cheers,
Steve     K7LXC
TOWER TECH 








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