Technical Provisions for Mode S Services and Extended Squitter

A-78 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 MSB MCP/FCU SELECTED ALTITUDE
2 LSB
3
4
RESERVED
5
6
RESERVED
7
8
RESERVED
9
10
RESERVED
11
12
RESERVED
13 MSB NEXT WAYPOINT
14 LSB
15
16
RESERVED
17 MSB FMS VERTICAL MODE
18 LSB
19 MSB VHF CHANNEL REPORT
20 LSB
21 MSB METEOROLOGICAL HAZARDS
22 LSB
23 MSB FMS SELECTED ALTITUDE
24 LSB
25 MSB BAROMETRIC PRESSURE
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
LSB SETTING MINUS 800 mb
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
RESERVED
Table A-2-95. BDS code 5,F — Quasi-static parameter monitoring
PURPOSE: To permit the monitoring of changes in parameters that do
not normally change very frequently, i.e., those expected to be stable for
5 minutes or more by accessing a single register.
Parameter Monitor Coding:
1) The changing of each parameter shall be monitored by 2 bits.
The value 00 shall indicate that no valid data are available on this
parameter. The decimal value for this 2-bit field shall be cycled
through 1, 2 and 3, each step indicating a change in the monitored
parameter.
2) The meteorological hazards subfield shall report changes to
turbulence, wind shear, wake vortex, icing and microburst, as in
register number 4516.
3) The next waypoint subfield shall report change to data contained in
registers 4116, 4216 and 4316.
4) The FMS vertical mode shall report change to bits 48 to 51 in
register 4016.
Draft
DRAFT - Working Paper ASP TSGWP11-01 for review by the TSG during the meeting in June 2011 in Paris