I have seen truly buriable coax for catv (75 ohm) use - it is filled
(flooded) with a tar like substance called "migraheal" which prevents
moisture migration. It is available from commscope and is used for
some underground applications. No idea whether a 50 ohm equivalent
exists.
Andrew Heliax and other hardline might be buriable too.
Ryan, N2RJ
On 7/18/10, Tom Anderson <andersonww5l@sbcglobal.net> wrote:
> Is there any truly "buriable" coax or does one need to snake the "buriable"
> staff through a piece of buried PVC pipe. I'm installing a vertical in my
> back yard and was wondering which was best? A note, the area where I live
> is permeated by underground springs that ooze water.
>
> When I dug the 6 ft. hole for my 50 ft crank up in 1992, it filled up
> overnight with water and when I called the city thinking we may have hit a
> waterline someplace. Their inspectors came out and said this area was
> inpregnated with underground springs. Once we pumped out the hole you could
> see the water dribbling in from many locations along the sides of the square
> hole. A friend of mine who owed me a favor dug the hole for free with a
> backhole he owned, so we had to push all the dirt back in.
>
> One thing we did find was a steering wheel to a 1960 Chevy pickup truck at
> the 6 ft level. No this isn't a hoiusing developement built on top of trash
> dump, according to the city. Never did figure that one out hi hi.
>
> Finally hired a professional tower installer who dug the hole for the
> concrete base (A TriEX W-51 crankup), set the base, and pumped in the
> concrete all within 10 hours so it wouldn't fill up with water again.
>
> 73 de Tom, WW5L
>
>
>
>
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--
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Ryan A. Jairam,
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