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coax under ground..

Splash1

Active Member
Jun 11, 2006
308
5
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have normal 213 coax.it goes across the yard about40 feet.laid boards over it so lawn tractor wouldnt smash it.been this way bout 3 years and lifted the board and noticed the coax now has sunk bout 2 inches into the ground.i read somwhere once they make specail coax that u can bury.was wondering if the way my regular coax is 2 inches under ground is ok....
 

If you haven't noticed anything 'bad' happening with the antenna that coax goes to, then I'd have to say there isn't a problem... yet. May not be, but wait and see. I think I'd wait till there is a problem before doing anything about it.
- 'Doc
 
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As long as you don't trip over it, or catch it in the lawn mower, or the dog doesn't chew it up, or a marauding elephant doesn't eat it, it ought'a do just fine. Maybe.
- 'Doc
 
IIRC , i read a comment somewhere that burying coax can help eliminate CMCs .
is that correct ?
 
"IIRC , i read a comment somewhere that burying coax can help eliminate CMCs .
is that correct ?"
A very rough guess is that it will maybe 50% of the time. Dirt is something like a choke, it can 'drain' currents off of the outside of a feed line. Will it do that every time? I wouldn't bet much on it, but the chances are very good that it will. So how much has to be buried for it to work? Beats me, something between a 1/4 wave length and a 1/4 mile. There's no 'set' answer to that. Try it and see.
- 'Doc
 
I have a ground mounted HF vertical that is about 60 feet from the house. I buried my coax in some flexible PVC type conduit sold at a farm supply store. Figured that would help protect the coax and won't be real difficult to run a future replacement line of coax through.

Burying it was easier then I though and only took a few hours. Using a shovel I went along and flipped over wedge shaped sections of soil. Then laid the conduit in and flipped the sections back over. I walked along the top and compressed the ground in place. It was spring time and I poured bags of dirt along any gaps and then threw some seed down. A month or two later and it was invisible.
 
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