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Technical Provisions for Mode S Services and Extended Squitter

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B-32 <strong>Technical</strong> <strong>Provisions</strong> <strong>for</strong> <strong>Mode</strong> S <strong>Services</strong> <strong>and</strong> <strong>Extended</strong> <strong>Squitter</strong><br />

MB FIELD<br />

DRAFT - Working Paper ASP TSGWP11-01 <strong>for</strong> review by the TSG during the meeting in June 2011 in Paris<br />

Table B-2-6. BDS code 0,6 — <strong>Extended</strong> squitter surface position<br />

1 MSB<br />

2 FORMAT TYPE CODE<br />

3 (specified in §B.2.3.1)<br />

4<br />

5 LSB<br />

6 MSB<br />

7<br />

8 MOVEMENT<br />

9 (specified in §B.2.3.3.1)<br />

10<br />

11<br />

12 LSB<br />

13 STATUS <strong>for</strong> Heading/ground track: 0 = Invalid, 1 = Valid<br />

14 MSB = 180 degrees<br />

15<br />

16 HEADING/GROUND TRACK<br />

17 (specified in §B.2.3.3.2)<br />

18<br />

19<br />

20 LSB = 360/128 degrees<br />

21 TIME (T) (specified in §B.2.3.3.4)<br />

22 CPR FORMAT (F) (specified in §B.2.3.3.3)<br />

23 MSB<br />

24<br />

25<br />

26<br />

27<br />

28<br />

29<br />

30 ENCODED LATITUDE 17 bits<br />

31 (CPR surface <strong>for</strong>mat specified in §BC.2.6)<br />

32<br />

33<br />

34<br />

35<br />

36<br />

37<br />

38<br />

39 LSB<br />

40 MSB<br />

41<br />

42<br />

43<br />

44<br />

45<br />

46<br />

47 ENCODED LONGITUDE 17 bits<br />

48 (CPR surface <strong>for</strong>mat specified in §BC.2.6)<br />

49<br />

50<br />

51<br />

52<br />

53<br />

54<br />

55<br />

56 LSB<br />

PURPOSE: To provide accurate surface position in<strong>for</strong>mation.<br />

Draft<br />

DRAFT - Working Paper ASP TSGWP11-01 <strong>for</strong> review by the TSG during the meeting in June 2011 in Paris

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