Visiblity to RVR Conversion
Hello,
I am reading a little in the Jep manual,
I know we can convert VIS to RVR ( ex 400m by night with HI lights gets 800m RVR). But in the book it mentions also "not for take-off or any other required RVR minimum less than 800m or when RVR is reported".
What I wonder is the "or any other required RVR minimum less than 800m",
does this mean you can not use the conversion if RVR required is less than 800m? Can someone explain what they mean with this line ?
Thank you !