Traffic Info - above or below
It has occured to me, pottering from unit to unit at not quite 3 figures, that I receive TI from different radar people in different ways.
Some give "Unknown traffic...indicating (say) FL35, unverified" and some give "Unknown traffic...(slightly) above/below".
I notice your MATS Pt 1 refers to the latter, but the former seems just as relevant to me. Is there any preference as to which is used by which unit?
Slightly confused,
Tori