Hi all,
I agree as well that both acft are to be outbound from VOR/NDB/FIX. There are some countries which apply different rules, one inbound and the other one outbound or even both of acft are inbound with longer distance required, for ex. in the USA as far as I know, but distance is 30 Nm for both inbound. It depends on NSA to determine what separation to apply.
One more thing, in the Doc.4444 it is written that DME is not only meen to ask when applying separation, now we may ask for GNSS distance as well, one or both acft.
I want to hear from others if you apply separation using GNSS and how to do it (phrase)?
BRGDS,
ATCO2