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#1
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So, I want to make a loop antenna for AM, and I'd like to ask a
question that I guess must have been asked time and time again: Does the material used to make the wire (copper, steel, aluminum) affect the inductance of the loop? |
#2
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ungvichian wrote:
So, I want to make a loop antenna for AM, and I'd like to ask a question that I guess must have been asked time and time again: Does the material used to make the wire (copper, steel, aluminum) affect the inductance of the loop? It affects the Q more than the inductance. Stainless steel 75m mobile loading coils have been measured to be 4+ dB down from a copper coil. If you want a really efficient AM loop, use a super-conductor. :-) -- 73, Cecil http://www.w5dxp.com |
#3
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I can see it now, Cecil - Fox Hunts of the future!
Pull into the gas station, pump 20 gallons of Super Unleaded into the tank, and 12 pints of Helium 3 into the Dewar flask... denny / k8do Cecil Moore wrote: If you want a really efficient AM loop, use a super-conductor. :-) |
#4
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Denny wrote:
I can see it now, Cecil - Fox Hunts of the future! Pull into the gas station, pump 20 gallons of Super Unleaded into the tank, and 12 pints of Helium 3 into the Dewar flask... denny / k8do Cecil Moore wrote: If you want a really efficient AM loop, use a super-conductor. :-) Denny: Helium wells? Naa, they are a myth just like hydrogen wells are, Arnold is just blowing smoke when he wants more californian's using hydrogen cars. At least, I think we still get hydrogen the old fashioned way, by using electricity to break water down into oxygen and hydrogen. And, we still get electricity the old fashioned way, by burning oil in generating plants! Ahhh, California, the land of smoke and mirrors! Regards, JS |
#5
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John Smith wrote:
... Helium wells? Naa, they are a myth just like hydrogen wells are, Arnold ... Regards, JS And before someone calls me on it, yes, I do know there is helium trapped in oil wells! JS |
#6
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John Smith wrote:
And before someone calls me on it, yes, I do know there is helium trapped in oil wells! Virtually all of the known trapped helium in the world is in Texas. Wonder how it got there? -- 73, Cecil http://www.w5dxp.com |
#7
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Dayummmm, spoiled my fun..
denny John Smith wrote: John Smith wrote: ... Helium wells? Naa, they are a myth just like hydrogen wells are, Arnold ... Regards, JS And before someone calls me on it, yes, I do know there is helium trapped in oil wells! JS |
#8
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John Smith wrote:
Ahhh, California, the land of smoke and mirrors! I thought it was fruits and nuts. -- 73, Cecil http://www.w5dxp.com |
#9
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Cecil Moore wrote:
John Smith wrote: Ahhh, California, the land of smoke and mirrors! I thought it was fruits and nuts. Cecil: There are sometimes I should just keep my mouth shut (or fingers silent on the keyboard), least I be unforgivably un-politically correct, this is one of those times. evil grin I look forward to retirement--and leaving calif ![]() Regards, JS |
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