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Technical Provisions for Mode S Services and Extended Squitter

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A-88 <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 />

1 STATUS<br />

2 Character Field (see 1 )<br />

3 C1<br />

4 A1<br />

5 C2<br />

6 A2<br />

7 C4<br />

8 A 4 MODE 1 CODE<br />

9 X<br />

10 B1<br />

11 D1<br />

12 B2<br />

13 D2<br />

14 B4<br />

15 D4<br />

16 STATUS<br />

17 C1<br />

18 A1<br />

19 C2<br />

20 A2<br />

21 C4<br />

22 A 4 MODE 2 CODE<br />

23 X<br />

24 B1<br />

25 D1<br />

26 B2<br />

27 D2<br />

28 B4<br />

29 D4<br />

30<br />

31<br />

32<br />

33<br />

34<br />

35<br />

36<br />

37<br />

38<br />

39<br />

40<br />

41<br />

42 RESERVED<br />

43<br />

44<br />

45<br />

46<br />

47<br />

48<br />

49<br />

50<br />

51<br />

52<br />

53<br />

54<br />

55<br />

56<br />

Table A-2-241. BDS code F,1 — Military applications<br />

PURPOSE: To provide data in support of military applications.<br />

1) The character field shall be used to indicate whether 2 characters or<br />

4 characters are used in the <strong>Mode</strong> 1 code. The logic shall be as<br />

follows:<br />

0 = 2 octal codes<br />

(A1 — A4 <strong>and</strong> B1 — B4)<br />

1 = 4 octal codes<br />

(A1 — A4, B1 — B4, C1 — C4 <strong>and</strong> D1 — D4)<br />

2) The status fields shall be used to indicate whether the data are<br />

available or unavailable. The logic shall be as follows:<br />

0 = Unavailable<br />

1 = Available<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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