After rethinking my terrible job of using corrugated flexible 4" tubing, I
would use 2 runs of 4" schedule 40 and 1/2" black rope for a pulling line to
be left in permanently. Fishing line may cut into other cables should they
cross. With your size trench, I might even throw in a 3rd run! Don't forget
a drain so water doesn't get trapped and a method to prevent critters from
entering.
Bob
K3GT
>
> Good morning,
>
> Just finished digging the trench for a feedline and control line conduit
from
> the house to the tower. The trench is about 12 inches deep, 10 inches
wide, and
> 90 feet long.
>
> I was planning to put about 1.5 inches of pea stone on the bottom of the
> trench, and lay in side-by-side two 3-inch septic-type schedule 40 PVC
pipes
> with holes down for drainage. The ends will come out of the ground slowly
at a
> very slight angle - 30 degrees, I guess.
>
>
> What about the fish line? What kind of line should be left inside
permanently
> for pulling new cables?
>
> Any comments on the overall plan? Is one 4-inch or bigger pipe a better or
> worse idea? I was thinking that separate pipes reduces the potential for
> tangling inside as the number of cables changes over time.
>
> This is my first time doing this part of the job. All suggestions welcome.
>
> 73,
>
> Jim K1IR
>
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> The Information Resource for Conferencing Professionals
> -------------------------------------------------------
> James S. Idelson
> President
> DesigNET International, Inc.
> 96 Morse Road
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>
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>
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>
List Sponsored by AN Wireless: AN Wireless handles Rohn tower systems,
Trylon Titan towers, coax, hardline and more. Also check out our self
supporting towers up to 96 feet for under $1500!! http://www.anwireless.com
-----
FAQ on WWW: http://www.contesting.com/FAQ/towertalk
Submissions: towertalk@contesting.com
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