Global MUF Map - Europe
What is MUF?
The MUF (Maximum Usable Frequency) is the highest frequency that can be used for ionospheric communication at a given time and location.
How to read the map
Each circle represents an ionospheric measurement point. The color indicates the MUF: green = high bands open, yellow/orange = mid bands, red = only low bands.
Practical use
If the MUF is 21 MHz, you can use frequencies up to 21 MHz (15m band and below). For reliable DX, use frequencies at 80-85% of the MUF.
foF2 (Critical Frequency)
The foF2 is the critical frequency of the F2 layer: maximum frequency reflected at vertical incidence.
Average MUF 0.0 MHz
Max MUF 0.0 MHz
Points 0
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MUF Legend
>24 MHz
(10m+)
21-24 MHz
(10m)
19-21 MHz
(12m)
17-19 MHz
(15m)
15-17 MHz
(17m)
13-15 MHz
(20m)
10-13 MHz
(30m)
7-10 MHz
(40m)
<7 MHz
(80m)
Disclaimer
The data shown is indicative and derived from propagation models and ionospheric measurements. Actual conditions may vary significantly. Use as a general reference, not as an exact prediction.