Rob,
Great idea and as follow-up
The very reason I was asking these questions is that I do, in fact, have the
opportunity to do this right the first time having the rare opportunity to
build tower and shack simultaneously.
No, as part of the complex negotiations to get approval from the very local
authorities (wife) I decided to move the tower to a less exposed part of
the yard (and you thought zoning boards were tough...) Which means there is
at least 60 feet from tower base to shack. Not ideal. So, I was planning
on multiple grounds rods at the tower base and a few just outside the
baseboard of the new room. One of the issues this raises is one of ground
loops, tower base vs shack? Are there issues of having two ground paths on
the same circuit when ther is non-negligable impedance between them?
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com]On Behalf Of Rob Atkinson, K5UJ
Sent: Monday, March 31, 2003 9:54 AM
To: towertalk@contesting.com
Subject: [TowerTalk] idea(l?) hamshack
I'm not so sure it is an off topic question. It seems to me that he is
constructing a site with a shack (read vault) near his antenna. For that
reason, grounding of the building and tower combination with a single point
entrance become important and I think these are Tower Talk issues. To the
questioner, I would survey if possible a commercial site where there is a
tower and equipment vault and learn from what the pros do when building a
site designed for communications only. It will most likely have a single
point entrance for everything, a buried perimeter ground with a grounded
cable tray to the tower. If I were building from scratch, I'd certainly
have the earth around the vault plowed, a trench dug and a perim. ground put
in that included the tower ground, all bonded to an entrance bulkhead. Then
I'd put gravel down over what's been plowed for drainage. Most hams have to
make do with buildings not designed for communications (our homes). You
have the chance to do everything right from the ground up (yeah, it was a
pun). Go look at a commercial site to get some ideas.
Rob Atkinson
K5UJ
k5uj@hotmail.com
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