Technical Provisions for Mode S Services and Extended Squitter

A-68 Technical Provisions for Mode S Services and Extended Squitter
MB FIELD
DRAFT - Working Paper ASP TSGWP11-01 for review by the TSG during the meeting in June 2011 in Paris
1 STATUS
2 SIGN
3 MSB = 90 degrees
4
5
6
7
8
9 WAYPOINT LATITUDE
10
11 Range = [–180, +180] degrees
12
13
14
15
16
17
18
19
20 LSB = 90/131 072 degrees
21 STATUS
22 SIGN
23 MSB = 90 degrees
24
25
26
27
28
29
30 WAYPOINT LONGITUDE
31
32 Range = [–180, +180] degrees
33
34
35
36
37
38
39
40 LSB = 90/131 072 degrees
41 STATUS
42 SIGN
43 MSB = 65 536 feet
44
45
46
47 WAYPOINT CROSSING
48 ALTITUDE
49
50 Range = [–131 072, +131 064] feet
51
52
53
54
55
56 LSB = 8 feet
Table A-2-66. BDS code 4,2 — Next waypoint details
PURPOSE: To provide ready access to details about the next waypoint
on an aircraft’s route, without the need to establish a data link dialogue
with the flight management system. This will assist with short and
medium term tactical control.
Note.— Two’s complement coding is used for all signed fields as
specified in §A.2.2.2.
Draft
DRAFT - Working Paper ASP TSGWP11-01 for review by the TSG during the meeting in June 2011 in Paris