LiDO vizability
With the LIDO charts I have been trying to find the reference for the vizability units for the approach charts i.e. 310-550 would be 310 minima and 550m but when it becomes say 310-1.2 is the 1.2 sm or 1200m. I can't find the reference in the legends and tables.
Easy question I know but caused some different answers the other day so looking for clarification and reference.