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On Oct 16, 1:53 am, Red wrote:
The tarnish doesn't do anything good. On a relative scale, silver is 250, copper 225, as is gold. Aluminum is 175. Stainless is about like lead, 6 or 8. Plain carbon steel is 25. Thermal conductivity is closely correlated with electrical conductativity for what that is worth. Better at one is generally better at the other. Casady Richard...I'm telling you one of the worlds top antenna designers lives here and I just happened to be lucky enough to get his help setting up my radios. If he tells me tarnished silver is the best for HF I take his word for it..If our goverment flys him all over the earth to design develope and set up the best....that's good enough reference for me. Joe I bet Larry could tell a few interesting stories on this subject. Antenna designers are really in a world of their own. Back in the day I remember a group of antenna engineers that were hired to keep a large surveillence receiver antenna working. They would come down and crawl inside the antenna case with a small metal tackle box. After a short while you would hear some light banging here and there and then they would come out and test it. The tackle box they carried had several hammers in it they used to shape/tune the antenna with. In conversation with them and from reading on the subject I learned that when it comes to antenna design some of what you think should make sense, actually doesn't. And sometimes stuff just works when intuitively you would think it wouldn't. Red Some of those hammers were used to bend fins in the waveguide cavities no doubt. The claws were employed to bend mechanically activated tuning tabs here and there. Been there, done that, sold the t-shirts, spent the money on drugs like caffeine, carbohydrates, etc. Didn't like it, not going back next tour. Too uncertain. Too dusty. ACTPSF (Always check the power supply first) is the eleventh technicians' commandment. I hope that is ambiguous enough for you. When the feet rot out of this world's biggest ground plane ask yourself why it wouldn't matter, and why it would. Nebacudnezer might know. Antennae, like anything electrical, are bifilar devices. The power "ground" line is part of the antenna if you have a monopole antenna (a nonconfabulation, or oxymoron). Local static is equally expressible as noise in the transmitter as it is in the receiver. The resistance of the "ground" is connected to the end of the ground lead in the power supply, but the resistor isn't connected to anything in common between the tx and the rx, except for the distance. The distance between the two non connections is related to the frequency and the distance and the propogation path and the orientation (or call it the polarization) between the two fields in the "ether well" or gravitational effects field, as far as the coupling fields are concerned. Who doesn't understand that? "Ground" is irrelevant, as it does not exist at radio (wireless) distances, but only in local fields, where you have test equipment with one lead marked "ground", for idiots. Terry K -the eleventh technician, who revels in 16 channel data scopes and differential glitches inside the discrete processor core with 75,000 test points, caused by old drum memory bearing wobble, known as "RIMP", for NuDet reporting, long obsolete in NORAD, an early, buggy, phone booth sized workstation connected to arpanet's daddy, defnet, only they didn't tell us that was what "they" called it around the water cooler, while we sat, bomb bait in our fallout shelter "careers". Aargh! I feel as if I wasted my life! Distillation will not remove radioactivity. MAD is our only hope, aside from habeus corpus. Thank God for the crazy Americans. I have no other credentials except my music, which I still cannot transmit on the internet, because weener dozer won't sell me data upload wads at near cost, nor you. Damn! I am getting to hate computers. The last time I plugged a real modem into my computer, the winmodem driver burned out my motherboard centronics printer port. Argh! Phoner25.zip doesn't work on widoze 2000 any more! CRAP! Jump ship! Copy LINUX for free, manuals extra. Write your own drivers. What freedom? I just bought my mortgage as an investment in my SDRRSP, now must pay the bank to supervise foreclosure on myself if I don't pay the debt to myself, so I must pay myself interest, and income tax on the income. Why can I not simply forgive myself the debt? |
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