Hello,
There¡¯s a lot of literature on this.
Search with the keyword CEC or calibration CEC etc, etc...
?
In the end of this post I specified, that there were holes when using the encoder in CEC version (Non-linear frequency display with rotation) but what is curious is that it works perfectly when calibrating or BFO.
/g/BITX20/topic/93575979#95659
There may be a soft modification to make, but only an Arduino expert can look at it.
cdt