AG fuer technische Informatik Meystre www.agtim.ch
by André Meystre HB9BIG

maximum usable frequency MUF for working VK0IR on Heard Island

13. to 27. january 97 / sunspotnumber 10



MUF is expected at 50% of the month

Interpretation helps: The most areas of the maps belong to the low frequency range of the legend. The changes in frequency are rather smooth, no steps, so higher frequencies (light colors) are found inside of the gray clouds, if any. The blue area inside the light gray cloud belongs to the 18Mhz up range.
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