Hi,

After having read the online pdf document about the use of WSPR 2.0 I miss some explanation about the vertical ruler right of the graphical area.
The digits along the ruler differ sometimes after choosing another band and sometimes I see a red mark in the ruler.
I guess it has something to do with the processing bandwidth.

Is it possible to have more information about it?

Thank you very much for your reaction.

73, PE0CWK
Kees