Propagation tools – UK Ionogram

Ionogram Information from the UK Solar System Data Centre at Chilton (RAL). Critical frequency is currently 3.1MHz (ie. foF2) and Maximum Usable Frequency MUF(D) is 8.13MHz. Registration is required to access the data after which login just requires an email address (leave the password blank.

The RAL is the Rutherford Appleton Laboratory:

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