Hi All,
I find propagation, in all its forms, just a fascinating subject, don't you?
The link below has been forwarded to me by a ham radio friend, here in San Diego.
http://superdarn.jhuapl.edu/rt/java/index.html
At first blush, it sounds like a boon to the HF op, but it appears there is a lot to using this tool.
At least, it seems that way to me!
Just wanted to run it past you, in the event you had not yet heard or seen of it.
73,
Alan...N6HPO