Links giving advice and information about likely radio wave propogation.
27 Day Outlook NOAA 27-day Space Weather Outlook Table
DK0WCY Magnetometer. Auroral beacon and magnetometer in Germany.
Grey Line map. World map with day/night terminator lines in real time.
Solar Terrestrial Activity Report. Planetary A, sunspot number, solar flux etc.
Terrain Map. Draws a terrain map between any two points on the map. Useful for VHF.
Tropospheric Ducting Forecast.
Reverse Beacon network