[SCCC] FW: [cactus-intertie] Widening the net - Tower installation in PHX

[Marty Woll]

I'm reposting this from the Cactus intertie reflector.

Might someone on this reflector have experience with planting towers in rock who could  advise Jon?  His contact info appears below.

73,

Marty N6VI


-----Original Message-----
From: cactus-intertie at d2net.net [mailto:cactus-intertie at d2net.net] On Behalf Of Jon Adams
Sent: Tuesday, January 14, 2020 5:43 PM
To: Cactus Intertie
Subject: [cactus-intertie] Widening the net - Tower installation in PHX

I first asked this on the local reflector, but didn't get any feedback.

I am about to have a new used house that is not in an HOA neighborhood, 
and so will definitely need a tower. The hillside immediately behind me 
is highly deformed metamorphic rock (slate, gneiss, schist) and I expect 
most of the tower footing to be in this (relatively) hard rock. I'm 
thinking a Rohn 45 GSR at 40', which has more than enough cross-section 
to put nearly as many antennas as I could imagine. City of Phoenix seems 
to have relatively moderate tower restrictions, less than 45' in height 
appears exempt. My backyard is the Phoenix Mountain Park.

I've reviewed all the Rohn literature, and it certainly seems that this 
tower will meet all my possible needs. Anyone with experience in carving 
into hard rock and planting a tower? I would imagine, that under the 
right circumstances, less concrete is possible because of the rock. 
However, I'm looking for someone who can adequately engineer a solution 
and then get it installed. If any of you know someone of that ilk, 
please please let me know. A tower is crying to be born.

Please respond directly.

-- 
73 - Jon N7UV
Jon Adams, P.E.
jon at jonadams.com
480-628-6686