[TowerTalk] Jetting or Hydraulic-Ning
dearborn9 at sbcglobal.net
Fri Mar 3 17:16:42 EST 2006
Very true then followed by 'Slobbering a pl-259 while on the tower' and then
my favorite "BEE'S"
----- Original Message -----
From: "Robert Chudek" <k0rc at citlink.net>
To: <towertalk at contesting.com>
Sent: Friday, March 03, 2006 15:28 PM
Subject: Re: [TowerTalk] Jetting or Hydraulic-Ning
> It looks like we've got a pretty strong contender to the bi-annual "How do
I find true North?" thread.
> Who wooda thunk? :-)
> 73 de Bob - K0RC
> * * * * * * * * * * * * * *
> Message: 1
> Date: Thu, 2 Mar 2006 23:41:28 EST
> From: CubexCo at aol.com
> Subject: [TowerTalk] Jetting or Hydraulic-Ning
> To: towertalk at contesting.com
> Message-ID: <6a.682579ee.313922f8 at aol.com>
> Content-Type: text/plain; charset="US-ASCII"
> Although the suggested method of using a water jet to run coax under a
> way would also be my choice, I would like to suggest a caution.
> Before starting, find out the substructure composition and depth before
> starting your water jet. Most driveways have some form of substrate
> crushed stone 3 to 4 inches or more thick. On top of that may be cement,
> black top or a sand base and pavers. It is very easy to undermine the
> blacktop driveways if you errode the sub base.
> Dig down along side of the drive, determine the make up of the structure
> its depth. I would go at least 6 inches below the substrate to start your
> water jet.
> The other problem is making sure you have excavated enough of a trench to
> allow your jet tube to be parallel to the ground so that you don't angle
> tunnel down and end up very deep on the opposite side.
> Here in Florida this is an easy task as we are dealing for the most part
> Sand. Clay can be a little tougher.
> Norm W4QN
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