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![]() "'Doc" wrote in message ... Stephen Cowell wrote: Plumber's Delight J-pole doesn't require an insulator at all... I'd imagine that it could take all the power you could pour into it, probably take way over legal limit to melt a half-inch copper pipe J-pole. .... None at all? Are you real sure about that? Think about it... Well, you're welcome to come look in my garage... I have a J-pole for 6 meters, shunt-fed. All parts of the antenna/Q-line are at DC potential... it's a solid piece of copper. You can ground the 'handle', hurts not a whit. If your J-pole has an insulator in the middle, with a phasing section, then it's a 'Super J', not a normal J. A normal J-pole consists of the Q-line matching section (the tuning fork part) and a half-wave radiator just above that. __ Steve KI5YG .. |
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