Technical Provisions for Mode S Services and Extended Squitter

Appendix A A-83
MB FIELD
DRAFT - Working Paper ASP TSGWP11-01 for review by the TSG during the meeting in June 2011 in Paris
Table A-2-228. BDS code E,4 — Transponder software revision number
1 STATUS
2 MSB FORMAT TYPE
3 LSB
4 MSB MSB
5 P/N
6 Digit 1 CHARACTER 1
7 LSB
8 MSB
9 P/N LSB
10 Digit 2 MSB
11 LSB
12 MSB CHARACTER 2
13 P/N
14 Digit 3
15 LSB LSB
16 MSB MSB
17 P/N
18 Digit 4 CHARACTER 3
19 LSB
20 MSB
21 P/N LSB
22 Digit 5 MSB
23 LSB
24 MSB CHARACTER 4
25 P/N
26 Digit 6
27 LSB LSB
28 MSB MSB
29 P/N
30 Digit 7 CHARACTER 5
31 LSB
32 MSB
33 P/N LSB
34 Digit 8 MSB
35 LSB
36 MSB CHARACTER 6
37 P/N
38 Digit 9
39 LSB LSB
40 MSB MSB
41 P/N
42 Digit 10 CHARACTER 7
43 LSB
44 MSB
45 P/N LSB
46 Digit 11 MSB
47 LSB
48 MSB CHARACTER 8
49 P/N
50 Digit 12
51
52
53
LSB LSB
54
55
56
RESERVED RESERVED
PURPOSE: To provide Mode S transponder software revision number as
defined by the supplier.
FORMAT TYPE CODING:
Bit 2 Bit 3
0 0 = Part number (P/N) coding
0 1 = Character coding
1 0 = Reserved
1 1 = Reserved
1) When a part number is allocated to the software revision, it is
recommended to use the format type “00.” In this case, P/N Digits are
BCD encoded. Digit 1 is the first left digit of the part number.
2) If format type “01” is used, the coding of character 1 to 8 shall be as
defined in Table 3-9 of Chapter 3, Annex 10, Volume IV. Character 1
is the first left character of the software revision number.
3) For operational reasons, some military installations may not
implement this format.
Draft
DRAFT - Working Paper ASP TSGWP11-01 for review by the TSG during the meeting in June 2011 in Paris