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http://www.casa.gov.au/wcmswr/_asset...2/172mfull.pdf
10.5.5 Separation Minima Based on ATS Surveillance Systems
10.5.5.1 Where:
(a) aircraft are in communication with and under the control of a terminal control unit or associated control tower; and
(b) the aircraft are:
(i) within 30 NM of a radar sensor, using military high definition (scan rate of 12 RPM or greater) Terminal Approach Radar (TAR) or primary data from a civil high definition TAR (scan rate of 16.4 RPM); or
(ii) within 100 NM of an MSSR sensor providing radar data to EUROCAT 2000 displays; and
(c) aircraft position is derived only from radar information;
the horizontal radar separation minimum is:
(d) 3 NM; or
(e) where a higher minimum applies under subsection 10.12.2.2 — that higher minimum.
10.5.5.2 If subsection 10.12.2.2 does not apply, the horizontal separation minimum based on radar or ADS-B information is:
(a) 5 NM; or
(b) if a higher minimum applies under subsection 10.12.2.2 — that higher minimum.
10.12.2.2 Distance-based wake turbulence separation
Position symbols
Apply separation based on the use of:
- Position symbols and/or PSR blips = So that the distance between the centres of the position symbols and/or PSR blips is never less than the prescribed minimum.
-
Position symbols/PSR blips and SSR responses = So that the distance between the centre of
the position symbols and/or the PSR blip and the nearest edge of the SSR response is never less than the prescribed minimum.
- SSR responses = So that the distance between the closest edges of the SSR responses is never less than the prescribed minimum.
Cheers
