[TowerTalk] Guy Anchor Advise

[K2EK@aol.com]

Hello all...

Within the next few months, construction begins on my new hilltop QTH. 

Obviously, I am already planning for the installation of a pair of 45G 
towers, which 
for the heights I expect,  Rhon specs (4A  or 4B) call for guy anchors at a 
depth of 4 feet. 

Enter the problem... 
As the location is a typical northeast, rock prevails -  it is everywhere and 
in my case, 
is gneiss - a hard granitelike rock.   Out of the 6 anchor locations, I may 
get lucky and find 
4 feet at one or 2 - in some places rock shows above the soil line.  Zoning 
requirements plus the slope of the hill kind of limit siting the towers so I 
really do not have the luxury of moving things around much searching for 
suitably deep soil.  At best, I can rotate the guys around the tower axis a bit. 

I'd like to hear from anyone having solved installation in similar terrain. 

I imagine I could have the rock hammered out, but intuitively that sounds 
expensive. 
Rather than removing a lot of very hard rock, to just turn around and re-fill 
with concrete wouldn't it be possible to drill a suitable hole and set some 
kind of anchor rod in it? 

73 de Bill
K2EK