[TowerTalk] Coax for crank-up TX-455
wa5zup
wa5zup at msn.com
Fri Jul 6 09:31:22 EDT 2007
What size PVC did you use?
My thought was to tape the cables along the top stand-off, then create a
small loop, so they do not make a sharp bend. Then use a Kellem type grip
attached to the standoff ring to support the vertical weight of the cables.
Would that idea work?
-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com] On Behalf Of Jim McDonald
Sent: Friday, July 06, 2007 6:41 AM
To: Bill Ogden; K7LXC at aol.com
Cc: towertalk at contesting.com
Subject: Re: [TowerTalk] Coax for crank-up TX-455
Om my US Tower, I use a 90 degree PVC sweep in the top stand-off, held in
place with 10 or 20 mil thick pipe wrapping tape. I tape the cables to the
standoff arm before they enter the sweep.
Jim N7US
-----Original Message-----
>> The #10 wire is attached to the tower at the top and bottom, on the
theory
that the sliding joints and steel cables may not have the best connections.
> Connections to what? Just curious.
The connection reference was for good RF connections between the tower
sections. This would seem to be important for the half sloper.
The dowel (in the top cable guide, with the cables taped to it) provides a
form of strain relief -- otherwise the weight of the cables would rest on a
rather sharp right-angle bend where they would go over the top cable guide.
Bill - W2WO
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