Never having observed the effects of a complete solar cycle on signals before, or at least not having paid attention to them, hams continued to be impressed, intrigued, and puzzled by the changing on-air conditions as the minimum approached, still two years away as the new decade began. At least one thing was clear: Radio waves didn’t simply move from point to point along a straight line and decrease in strength with distance.  Something else was happening too, but what? … Continue reading →