But this is a specific installation question, not a "What's the best way to ground?" thread. Coax will exit through a homebrew pass-through panel mounted in a bedroom window. A ground connection from a copper bar mounted to the backside of my desk will also run through the panel out to point #1 (approx six feet away) and shack equipment will be grounded to the bar. Point #1 is where I am installing a small box that contains coax surge protectors (similar to what KF7P sells but I will likely build mine into a Pelican Case and mount it to a small fence post sunk into a hole with a bag of concrete) and it will also be the location of the initial ground rod. Point #2 is my electrical panel and is approximately 133 linear feet away when routed in the best way possible. At least the best way I can figure. I will have to snake the copper conductor under the sidewalk near #2 but I recently had a squirrel do most of the excavation for me so the dirt is pretty soft! So the actual question: how often do I need to drive a ground rod in along the 133 foot route? I've seen people quote the NEC saying every six feet, but I believe the actual code basically says no closer than six feet apart. But that doesn't tell me the maximum spacing I can use. Obviously, the greater the spacing the fewer rods I have to buy and bury. Secondary question: What errors am I making with this plan? Let's keep this civil if at all possible! Thanks everyone.