I wanted to make one comment regarding Ron Block...
(http://www.wrblock.com)....
i called him last year and explained that i wasnt
going to buy anythign i just needed a littel advice...
he spent about 30 minutes walking me through what i
needed to do etc... even though he wasnt going to make
any sales...
Dan N8DCJ
--- K7LXC@aol.com wrote:
> In a message dated 8/12/2005 4:21:28 AM Pacific
> Daylight Time,
> towertalk-request@contesting.com writes:
>
> > Steve,
> I'm no expert on this stuff but I'm sure I have seen
> TT posts which say
> that silver soldering is FB for this application.
> So, wrap the strap
> around the ring and silver solder it. Takes a LOT
> of heat.
>
> 73 de Jim Smith VE7FO
>
> Steve London wrote:
>
> >Thanks to everyone for their extremely helpful
> suggestions on dealing with
> my
> >hilltop rock QTH.
> >
> >It looks like the most reasonable things to do are:
> >
> >1) Install a number of copper strip radials from
> the tower base along the
> surface.
> >
> >2) Ground the bulkhead to the AC service ground.
> >
> >Now, here's the dumb questions ....
> >
> >Let's assume I want to create a copper ring around
> the tower, and attach the
> >copper strips to the copper ring.
> >
> >- Which of the Polyphaser (or other) products let
> me clamp a copper strip to
> a
> >Rohn 45 tower leg ? I see a number of Polyphaser
> TK-series clamps that look
> >like hose clamps. Okay, that goes around the tower
> leg, but now I need to
> >securely attach the copper strip to the clamp.
> Another SS hose clamp on
> top, or
> >? Is this even the right product to use ?
> >
> >- How should I attach the copper strips to the
> copper ring ? Clearly, I
> want as
> >much surface area of the copper strap to be in
> contact with the copper ring
> as
> >possible. I presume that soldering is a no-no for
> this purpose ?
>
> Hi, Steve --
>
> A new retirement QTH and a blank sheet of paper
> - cool!
>
> The TK clamps are what you use to attach copper
> to the round galvanized
> tower leg. You can roll your own by buying some
> hoseclamps and a sheet of SS.
> You're just trying to keep the galv away from the
> copper - too far apart on the
> dissimilar metals chart.
>
> Mostly people bend the copper around the leg and
> clamp it. I'm not sure
> of any neater ways of doing it. You can't Cadweld it
> - I'm pretty sure it'll
> blow a hole in the leg.
>
> Yes, you cannot solder your ground system. The
> only 2 NEC methods are
> either mechanical (nut-and-bolt) or exothermic (i.e.
> Cadweld). The first decent
> charge going thru your system will melt the soldered
> joints.
>
> As far as attaching your copper strap to your
> ground wire, give Ron Block
> a call - http://www.wrblock.com/. He's Roger Block's
> brother - the guy that
> started Polyphaser - and he should have some good
> info. He's at Dayton every
> year too. Also Harger has grounding products -
> http://www.harger.com/. There
> might be others - a Google search might be useful.
>
> Cheers,
> Steve K7LXC
> TOWER TECH
> _______________________________________________
>
> See: http://www.mscomputer.com for "Self Supporting
> Towers", "Wireless Weather Stations", and lot's
> more. Call Toll Free, 1-800-333-9041 with any
> questions and ask for Sherman, W2FLA.
>
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and ask for Sherman, W2FLA.
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