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On Thu, 05 May 2005 14:01:05 -0500, Cecil Moore wrote:
I vaguely remember building a coaxial "slotted" line without the slot when I was in college. We took a piece of coax, stripped off about a foot or so of outside insulation, and ran an insulated wire under the braid. We tied one end to ground through a R=Z0 resistor and ran the other end to a 1N34 rectifier. Anybody remember running a wire under the braid to achieve an inductive pickup for forward and reflected power? That's really a directional coupler, not a slotted line (but you already knew that). I vaguely recall seeing it in QST or a Handbook back in the 1950s. Bob, N7XY |
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