Hi Alan My experiments with skywave propagation from years ago was made with a Loran -C receiver. This is very usefull because Loran-C is a pulsed system. Because the pulses are long ( on the order o
Hi David, well no, its too early for sundown effects. The twilight shadow reaches the west coast of Greece about 1625z with full darkness about 1650z. (old GeoClock) That was the puzzling thing. Ther