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Open Wire fed lengths
On Jul 2, 3:07 pm, John Smith wrote:
K7ITM wrote: ... If there's a net RF current, there's a net RF current, and it will radiate. It matters not a whit whether you say the net is on the inside or the outside or distributed between them in any proportion. ... Really, then I can throw away the current choke on my coax to my 1/2 wave vertical then? I THINK NOT!!! And, I DON'T think there is rf on the outside of the coax shield--I DO think there is on the inside of the braid ... ....which is balanced by the RF on the center conductor. If it doesn't radiate, there's no net current; the center conductor current is equal in magnitude and opposite in phase to the current on the adjacent inside of the outer conductor. Why would you think that what you quoted above would imply that you could get rid of the choke on your transmission line, if you want to keep the line from having a net current and therefore radiating? It says just the opposite. But of course, you already knew that, didn't you? Sorry, rhetorical question. |
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