[AMRadio] coax lead in

[jon baker]

   Run some 1" PVC in the trench bottom for protection from soil
  movement,stones, etc. and run some Hardline through it. 
   The line Rob mentioned, already has a solid copper corrugated
  shield that most varmits can't chew throug, but since it is under
  a drive, the PVC will protect it from crushing.
   Terminate in N connectors well "lubed up" with Silicone Grease,
  and you should have no problems for years.
   73 es GL, AD5HR





--- On Sun, 4/3/11, Rob Atkinson <ranchorobbo at gmail.com> wrote:

> From: Rob Atkinson <ranchorobbo at gmail.com>
> Subject: Re: [AMRadio] coax lead in
> To: "Discussion of AM Radio in the Amateur Service" <amradio at mailman.qth.net>
> Date: Sunday, April 3, 2011, 4:42 PM
> You can't fight mother nature. 
> You have to play along.  sealing pipe
> to keep water out, steel wool etc. won't do anything except
> keep you
> fixing the line all the time.   If you have
> to go under a driveway,
> you have to allow for drainage and keep the passage open
> for
> evaporation.   You have to excavate on each
> side of the driveway and
> cut a trench through it and lay corrugated galvanized steel
> conduit
> about 12 inches diameter down in the trench.  It
> should have gravel
> around it.  to the ceiling of the conduit you have to
> attach a pipe
> that's about twice the diameter of the
> feedline.   lay the whole thing
> in the trench so the ends protrude a bit past the pavement
> above, and
> with a slight pitch to one end to drain into the excavated
> area.  Fill
> in the trench and pave over the top.   Push
> your feedline through the
> pipe.   Animals may still chew on it, maybe
> not, but the whole thing
> will drain, there will be no moisture problem because it is
> an open
> system and the feedline will be easy to get to, and
> examine.   This is
> laborious and expensive but that is usually how it is if
> you want to
> do something right and not have to continually mess around
> with it.
> Use LDF4-50 and animals may leave it alone more
> often.  I run LDF4-50
> and simply lay it on the ground.  It eventually sinks
> into the grass.
> I have done that for years and never had any animal damage
> and we have
> you name it, moles, skunks, chipmunks, groundhogs, possum,
> deer,
> geese, squirrels....
> 
> 73
> 
> Rob
> K5UJ
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