Question for Dirty Pierre or other Oz:
On our ASD (air situation display) circles are SSR tracks, + signs are primary paints, squares are flight plan tracks, triangles are ADS tracks, and soon we'll have ADS-B tracks all over Oz down to F300.
How are your circles, squares, triangles and +signs displayed ? Are they all overlapping as the case may be, or is there a hierarchy of data-sources which suppresses the signs considered to be of lower quality. If the latter, what is the rule, which data source has higher quality ? Reading the next quote I would presume ADS ?
ADS is reportedly more accurate than radar as it gives the actual aircraft position as reported by the aircraft's GPS/RNAV positioning system. Radar has of course slant range and other inaccuracies.
But why then would you need 50NM separation when the data source for the position is ADS, as I understand from the message of Captain Beef.
Songbird