Radio Propagation

Click here to read "An Introduction to HF Propagation"


North Pole Aurora

North Pole Aurora

South Pole Aurora

South Pole Aurora

Check how Aurora is absorbing your signals through the poles (explanation)

SSN Numbers

Solar Cycle SSN

Cycle comparison

Comparison of cycles 21-24

A graphical comparison of solar cycles 10, 12, 13, 14, 16 and 24.

Solar X-rays:


Geomagnetic Field:      


Click here for a real time Grey Line Map

                      Images courtesy of:-