Publication: Magyar Közlöny
Issue: MK-2009-104 (Year: 2009, Number: 104)
Era: 2004-2010
Section: 
Paragraph Index: 2461

a) initially, a Mode C reply is received from the target in each of three consecutive surveillance update periods, and: 1) the replies do not correlate with surveillance replies associated with other tracks; 2) the range rate indicated by the two most recent replies is less than 620 m/s (1 200 kt); 3) the oldest reply is consistent with the above range rate in the sense that its range lies within 95.3 m (312.5 ft) of a straight line passing through the two most recent replies; Attachment Annex 10 — Aeronautical Communications ATT-9 22/11/07 4) the replies correlate with each other in their altitude code bits;

Source: https://magyarkozlony.hu/hivatalos-lapok/bfd0d67db9f223889f627fd618725b03526630e2/dokumentumok/d5234fd7275da04023366ab8a434989962a31bdf/letoltes