I don't have a good answer to your question but I am wondering what you mean by "water drilling a copper tube"? I'm an amateur radio operator who has installed ground rods before but I've never heard of a trick called "water drilling". Sean On Thu, May 7, 2015 at 11:57 AM, Adam Field wrote: > Hi guys, I'm doing a point-to-point radio link using a pair of PoE powere= d > 5GHz ethernet bridges. As a side note, the PoE from this vendor is non > standard at 24VDC - but low voltage no electrical code applies AFAIK. > > I need to run a short distance from my house (50ft~) and I'm planing on > mounting the radio in a tree. From all the research I've done I've decide= d > to use gel filled "direct burial" shielded cat5e cable to run through the > yard. I half convinced to use PVC conduit with it too. > > I think I should terminate the shield with a cat5 lightning arrester at t= he > point of entry to my home. However, there isn't a good ground nearby, it'= s > at the other end of the house and all my plumbing is PEX plastic tubing - > no good. I'm thinking of using the HAM trick of water drilling a copper > tube into the ground to use for my lightning ground. > > Also, I'm up in Massachusetts so we do get a good frost - any ideas on ho= w > far down I should be burying this cable? Ideally I'd like to do as little > work as possible. > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .