Hi Nat,
The first problem is that the base for the TX489 requires a 5'x 5'x 8'
concrete pad with rebar cage not a 4'x 5'x 5'. I know that the present
bolts used on the tower is now a welded nut at the bottom of the special
grade anchor bolts. There are epoxy's that could be used, but still the
size of the base is the big problem.
I have a TX-489 with Hygain Tailtwister rotator turning a KLM 7 ele LPDA & 2
ele 40 Yagi. If I can help please email.
73, de KN4KL/KG4KL ed
-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of
Nathaniel Lee
Sent: Tuesday, July 23, 2013 11:28 AM
To: towertalk@contesting.com
Subject: [TowerTalk] TX-489 MDPL and mounting on another contrete base
Hello TT'ers,
I was curious if one ever installed one of these on another concrete base. I
have a 4x5x5 that currently has rohn 25 sticking out of it but does NOT have
any rebar installed within. Can one drill holes in the concrete and mount
the tower base? The specs page talks about J bolts but those would not be
feasible. The benefit of this base is that working on the antennas are
facilitated by roof access.
My second thought is sucking it up and making a base for it but I have this
beautiful pile of concrete that could be re-purposed.
Nat Lee
Somersworth, NH
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