Hey, speaking of ground rods, you guys have the "cloud to ground" lightning stuff on your weather channel ? We had to move NOAA out of the path of a new runway at Dulles, we had to build them a new detection system of course, and one thing we had to provide was a 400' ground rod, now THAT one may have low impedance. Well driller and GEM in case you had to ask.
Bill, No, the Co. was Anaconda Electronics (a subsidiary of the big copper Co.) Although the building changed hands long ago, I'll bet nobody took the time to suck that rod out!! It was connected to a braided flat conductor equivalent to a 4/0 and grounded a large screen room (Faraday Cage). (Same Co. had the first computer I ever hooked up, an IBM that took up a 20'x20' room, and didn't have the capabilities of a Palm Pilot)
