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I am somewhat baffled by the "Highlight actual H/L" function in the PNF chart. Of course I understand what actual high and low means, but when I try to understand the principle of the grafics, I really don't get it at all. Ít dosn't make sense, that a high or a low should be indicated by a black background that varies i size all the time.
Since I don't have any clue how to interpretate this black background correctly and I since haven't been able to find any helpfull information on the subject anywhere either, I hope someone in this forum can explain the idea to me...
Since I don't have any clue how to interpretate this black background correctly and I since haven't been able to find any helpfull information on the subject anywhere either, I hope someone in this forum can explain the idea to me...