HF Propagation Today
HF propagation is affected by solar radiation and space weather. The conditions of HF propagation today is illustrated by the MUF 3000 km map designed by Andrew, KC2G, that shows near real-time HF propagation conditions for a 3000 km path.
Alternatively or additionally you may view a map of real-time activity. designed by Jon Harder, NG0E.
The HF Propagation page provides detailed overview and tutorials on several aspects of HF propagation.
See also an index for HF Radio propagation.
The project "Understanding HF Propagation" provides a detailed overview and tutorials on HF propagation.