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Since you are talking about 50 Ohms I assume you are talking about a
transmission line. If that is the case you should definitely match the feedline to antenna at the antenna feed point. Any attempt to match the feedline with a tuner in the shack only turns the whole feedline into part of the antenna system. By doing that you have lost any good work in building the antenna. Dan hasan schiers wrote: I found the error, I had to fix two conditions that I had changed in the model: Copper wire (for loss) Ground characteristics Now that both antennas have the same conditions, the T has ever so slightly better gain at 20 degrees than the Inverted L. Not enough to bother with the increased complexity, and the input Z is now down around 5 ohms for the T and 8 ohms for the L. Now, is it worth matching the 8 ohms up to 50 at the feedpoint, or just using the tuner in the shack to take care of it? (coax feed, LMR-400, about 50') ...hasan, N0AN "Roy Lewallen" wrote in message ... John Ferrell wrote: . . . I am a perpetual antenna student! And so are we all. Roy Lewallen, W7EL |
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