↳ ↑ MUF Propagation Map

This page is part of the project "Understanding HF Propagation."
by Doron Tal, 4X4XM

What is MUF? — Maximum usable frequency is the highest possible frequency (HPF) that supports communication between two points on Earth by refractions from the F ionospheric region at a specified time, independent of transmitter power.


Long distance communication by ionospheric refractions

The following map visualizes the current ionospheric conditions that affect global HF radio propagation, aiding radio operators in assessing optimal frequencies and communication paths.

MUF3000 map
MUF 3000 km Propagation Map, by Andrew, KC2G
How to use this map? | An animated map
The project "Understanding HF Propagation," focuses on near-real-time maps (charts) and explains what they mean.
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