[QUOTE=underfire;9927160]Could you provide a screenshot from the LIDO chart?
I believe they mean mode S auto. This allows for data exchange.
Jepp:
https ://ibb.co/iPq60m
Sorry This for BOM VABB but Delhi still be the same
Ican not post URL because I have not reach 10 posts
So you may copy the URL above and delete the space after https