The Polyphaser book recommended ground rods spaced at 2x the length of the ground rods. The purpose was to spread the charge out in the event of a hit. So is that theory or explanation now out, dispr
It has been a long time since I looked at the book so I may not have remembered it correctly. Yes.. rods spaced closer than 2x the length are less effective (the limiting case is if you drive the two
...snip ...snip... I can't think of a good way to word it - except may to say a pair of rods closer than 2x is less effective - but say you had a pair of rods 3x (or 2x) apart, and you added a rod B
Less effective than what? Two 8' ground rods 8' apart are less effective than a single 8' rod? John KK9A I can't think of a good way to word it - except may to say a pair of rods closer than 2x is le
Thanks to all who made comments. My take away is to use more shorter ground rod runs from the tower, say 30 - 40 ft, than a smaller number of longer runs. I will see how many 30 ft radial runs I can
Author: "Roger (K8RI) on TT" <K8RI-on-TowerTalk@tm.net>
Date: Fri, 30 Jan 2015 09:00:46 -0500
You are also limited on more shorter runs as the distance between runs will have the first rod or two on adjacent runs fairly close. The first rods a couple of feet out will by necessity be close. Re
Author: Patrick Greenlee <patrick_g@windstream.net>
Date: Fri, 30 Jan 2015 08:35:04 -0600
Geometry seems to have an intuitive feel to it and is less intimidating than Trigonometry. There are demonstrations on the web of how to CONSTRUCT a hexagon, an octagon and other figures using only a
Author: Mike Fahmie via TowerTalk <towertalk@contesting.com>
Date: Fri, 30 Jan 2015 17:02:43 +0000 (UTC)
An equilateral triangle has equal sides so that means that the rods on adjacent radials will be spaced the same as the length of the radial, ie, at 16' from the center, adjacent rods will be 16' apar
Now that someone mentioned the equilateral triangle, things begin to fall in place. Eight equilateral triangles fills the circle, following their sides and offsetting the grounds 9 ft and 21 ft as sh
Ray, I think you're focusing on the wrong concept here. Go back and study what Jim Lux, W6RMK, said about the superiority of Ufer grounds in desert terrain and the "sphere of influence" of earth elec
I use the "Delta Loop" grounding system, with triangle spacing of 9 feet and some with 18 feet. I dope the rods every quarter. Have been hit a dozen times but nothing ever got in the shack. Once duri
George, Your're right, an equilateral triangle is 60 degrees. However, I decided to make my ground rod layout at 45 degrees to maximize the theoretical ground rod area coverage and minimize the overl
Author: "Roger (K8RI) on TT" <K8RI-on-TowerTalk@tm.net>
Date: Fri, 30 Jan 2015 20:03:13 -0500
And 60 degrees is the only included angle that will give such a simple solution. 73 Roger (K8RI) An equilateral triangle has equal sides so that means that the rods on adjacent radials will be spaced