TATC, unfortunately I can't answer you on that one. Suffice to say that I have used this on many an occation(with radar), before the 10 000ft/FL100 rule was added a year or two ago. The amount of clandestine prompting involved in getting a pilot to ask for it was legendary. But as for radar/non-radar, I have no idea. Some parts of the world utilise it differently. Damn sad that it can't be used above FL100/10 000ft.
I would think (sucking this out of my thumb though), that whether you have radar or not won't matter as the pilots do their own separation.
Last edited by BlueSkye; 15th Feb 2007 at 12:47.
Reason: Stuff added