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November 26th 07, 02:26 PM
posted to rec.radio.amateur.homebrew
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For Sale -Home brew balanced line tuner - Twin Roller Inductors
Hi, Bob.
Care to tell us what frequencies,antennas and types of feed lines you have used the tuner on? Have you ever put RF ammeters in the feed line to see if it's really balanced? Did you gear drive or chain drive the two coils? Looks like a nice job! =============== To check whether the feed line is truly balanced also depends on the symmetry of the antenna. Any 'unbalance can best be determined by clamping a RF current sensor/meter across both feed lines at the same time, not by measuring the difference between the 2 lines. Frank GM0CSZ / KN6WH |
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