[Boatanchors] coax

[D C *Mac* Macdonald]

Your action may depend upon the soil conditions
and drainage characteristics of your property.
 
I doubt that you can keep the inside of the PVC
totally dry. In any event, I recommend that you
run vertical PVC via a 90 deg elbow underground
at each end. Then put a pair of elbows to make
a 180 turn (pointing down) at the top of each
vertical run to keep direct water out. You will
STILL have water that gets into your tube through
condensation. You would also need to take some
effort to keep critters out of the ends of the
PVC run. I recommend a big wad of copper or brass
wool at each end.
 
If you decide to perforate the PVC tube, you should
also put a bunch of stones at the bottom of your
trench so that any water that does get into the
PVC has a way to get out.

~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
~~ ~ D C "Mac" Macdonald ~ ~~
~ ~ Amateur Radio - K2GKK ~ ~
~ ~ USAF and FAA, Retired ~ ~
~ ~ ~ Oklahoma City, OK ~ ~ ~
~~ ~ ~ "The Money Pit" ~ ~ ~~
~ ~ ~ ex-Palm Beach, 76 ~ ~ ~
~ www.gmcmhphotos.com/okclb ~
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
 
 


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> From: rickb at tx.rr.com
> To: boatanchors at mailman.qth.net
> Date: Thu, 31 Mar 2011 15:30:09 -0600
> Subject: [Boatanchors] coax
>
> I have a couple of antennas with which I use coax to the shack. The coax has
> to cross my driveway and I want to run it through buried PVC. Is it best to
> use lateral lines or at least drill several drain holes in the PVC to
> prevent moisture buildup or is it better to try and keep the PVC dry? It
> will run about 15'. I am using "bury type" coax.
>
> Thanks. Rick/K5IAR