Antenna Comparisons using JT65 & JT9 Signals along with NEC Models

True understanding of a problem is confirmed when one can validate theoretical model predictions with measurements.  It is too easy to believe pretty pictures that modeling programs produce, especially when making meaningful measurements is so difficult.  In this article I try to take the bull by the horns and see how close I can come to... Continue Reading →

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Comparing Receivers with Digital Mode Signals

I entered second heaven when I got my second radio.  My original 32-year-old Icom IC-745 got placed on the back shelf when the new 29-year-old Icom IC-751A arrived.  As much as I enjoyed the old IC-745, I was after a little computer control, and the 745 predates the idea that people use computers.  The 751A,... Continue Reading →

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