UK Ionogram. Use my email address steve[at]g7klj.com to log in.
Instructions:
Choose 'Chilton'
Leave the password blank, or type anything in the password field. (Its not required).
European Ionogram (Belgium)
No instructions required. It just works!
You'll need to read more at the respective Ionogram home pages. Thanks to Fred, PA3BUF, for pointing these resources out to me. I'm sure you'll find them useful in discovering the heights, densities and reflective properties of the D and F layers.
Useful indeed if you are operating from the UK or the European 'mainland', or if you are hoping to work this part of the world from dx-land!
I know its just a small part of the story. For example, the Auroral Belt also has a big influence. You may also find this chart useful.
