I think I know the answers to these three questions from my perusal of the TT archives I saved ... but better safe than sorry! 1. Ground rods: I am supplementing the existing service panel ground rod
I agree with most of Eric's comments. But The Megger(TM) and equivalent devices test at around 100~400 Hz so the values they get are valid for power company concerns, but not necessarily for lightnin
You should connect the power ground to the tower ground via the single point ground system established where the cables come into the building. Whether or not the grounds will "see" one another is a
I would still recommend protecting the dc cables from the battery. PolyPhaser (and there are probably other sources as well) makes units for this purpose in low current and 30 and 50 Amp models and f
A good lightning ground is a good RF ground, but the converse isn't necessarily true. Make sure the cold water pipe is continuously metal and doesn't become PVC soemwhere. Also jumper all joints to p
Other than the choice of #6~#4 as a jumper, I have no disagreements with Guy. I would still advocate the use of wide copper strap. If a round member is desired, I would use nothing smaller than #2. I
While your statements below are correct and true, Eric, why take chances? You usually don't know what the conditions will be (and how they could change). An ounce of prevention is worth a pound of cu
I'd suggest contacting Ron Block rather than PolyPhaser. Ron is Roger Block's brother, Roger founded Poly. The new owners of Poly are not ham friendly. Ron is a ham so he knows their concerns (e.g. $
These are outlet protectors as you indicated. Service panel protectors are manufactured by PolyPhaser. I would contact Ron Block of W R Block & Associates in southern NJ at (I think) 800 421 7170. Po
Who did you speak to? My information comes from hams who have contacted PolyPhaser, former employees (who have no axe to grind, I assure you), my own experiences (although I may be PNG there), and se
Nevertheless, I suggest contacting Ron Block for orders and information. He used to give a ham discount, but I don't know if he still does. Please let me know. According to official legend, PolyPhase
Are you sure about the plating? that it wasn't simply galvanized? If your soil is acidic, you want to use galvanized or tin or aluminum coated products. If it is base or alkaline, copper is the choic
You'll find out when you get your next electric bill! 73, Bob AA0CY Bob: I also was suspicious that the ground rod was galvanized. But, it is indeed cad-plated. Cad-plating has got to be a lot more e
In acidic soiul, you ought to use aluminum or tinned copper. Professionally, EIA/TIA222F requires galvanized rods and non-copper-based wire/strap no matter what. This is due to some tower problems al
The way I see it they would theoretically be making it unnecessary to have anodic/cathodic protection. The towers are galvanized and by using similar metals for the ground system the dissimilar metal
Apparently some folks have never heard of Loctite(TM). Works wonders on British motorcycles and GAP verticals. The GAP is a vertically-polarized half-wave dipole. Radials are unnecessary. The counter
If you're comparing a ground-mounted 1/4-wave Marconi to a roof-mounte Marconi, you're correct. Elevated radials is a different scenario and probably the comparison would then be to ground-mounted or
Isn't it interesting that ARRL accepts GAP advertising. It used to be that claims had to be proven before ads were accepted. I guess that's true no longer. I was satisfied with the performance of my
Don, I think you're setting yourself up for some problems which while solvable are better avoided. I've operated under the conditions you described, although at a maximum of 500 W out. I didn't have
Contact Erico in Ohio (sorry don't have their city or tel #). They sell the CADweld(TM) brand of exothermic welding including "one shots." For ham radio usage, however, unless you have access via the