Hi Darrel,

Many thanks for this.

I wondered about the variables. I did have a try at following the code through in the hope I could perhaps work it out.

As a test. I changed the string to 8 characters and tried adding MH(7) ="0" + AINT/10 and MH(8)="0"+ AINT/10 in Lat and Lon routines after MH4 and MH5 as a trial to see what was displayed.

I think the routine at 8 chrs is referencing the midi digit routine chrs as it displays custom chrs on the LCD in those positions.

I tried repeating MH4 and 5 but renumbered, so that should give 'IO93okok' as the 7th and 8th position but again it accessed custom chrs. A puzzle for me anyway.