Hello, I've read a lot of the submissions to this list with interest. One question that I haven't seen addressed that is near and dear to me is designing antenna structures for lightning prone enviro
Yes, I sort of figured that the 'around the catwalk' idea was a problem and didn't consider it too much because I figured you'd need a lot of antennas to get good coverage without significant nulls.
Thanks to Roger for an excellent article from Ham Radio Magazine that he generously scanned for me. It used three Yagis tangentially fired off of a large (15' on a side) triangular tower. Of course,
Can you tell me more about the 'Rolling Ball' concept and lightning? I've never heard of it. Someone, I think it was in the forum, said that lightning protection is like an insurance policy. The more
Unfortunately, I've got to deal with fixed stations, not mobiles. If there were a lot of random (time-dependent) scatter, it would probably work out the same way, but I can't be assured of that. Roge
Thanks for all the great replies. As far as the immediate need, that problem is likely solved by a somewhat low tech solution for the time being, though the problem will arise again in the future, an
Somebody mentioned Bentonite as a good filler material to improve grounding a few days ago. I asked around about this a bit and one of the tidbits that I got was the following: Commercial Bentonite c
I've seen a few mentions of stranded wire being bad for a ground system. Why? On the positive side, I'd think that the stranded wire would have a bit more connection with the surrounding earth since
One thing about the calculations for skin effect that is hard to figure in is the affect of conductors that are not round or multiple conductors placed near each other. Transformer manufacturers have
Has anyone mentioned Aluminum wire? How does aluminum fare buried? Does it get corroded more quickly in the ground than copper? With the price of copper, it would be nice to have aluminum as an alter
How about using that aluminum irrigation tubing and bring the tubes together in a manifold with a fitting. Punch a bunch of pinholes in the tubing and fill with vinegar once a year to keep the soil a