My competitor here uses 1.25" EMT conduit from Home Depot, 13 bucks for a
10' section.  He takes them to the local muffler shop and has them bend them
with a block U shape so that he can mount them to the side of the house
under the peak and the bend allows him to swing the mount to the eave as
well for stability.  For additional height he inserts the next smaller size
of EMT 1 to 2 feet inside the 1.25" and puts a couple of 1/4" bolts to
attach them together.  He can add another 8 or 9 feet this way.  BUT, EMT is
a soft allow, it's made to bend easily so I certainly wouldn't want to trust
it with anything with a large wind load very high up.  

I haven't tried it but he says it works perfect for him and his guys install
a lot faster now.

Bob-

-----Original Message-----
From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On
Behalf Of Michael Baird
Sent: Thursday, August 27, 2009 10:49 AM
To: WISPA General List
Subject: [WISPA] Antenna Mount extensions

As we get into more and more installs, we are discovering installations 
where we just need a little more height, 5-10 ft. or so. Currently the 
majority of our installs are roof mount via a dish type screw in mount, 
or antenna tower mount. I'm looking for suggestions on additional 
mounting options, specifically we would like to be able to extend off 
the roof another 5-20ft if possible with some sort of simple/economical 
extension that will remain stable into the future.

Regards
Michael Baird


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