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6
7
-8
9
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15
-16
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23
-24
25
26
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30
31
32
33
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-. 40 -
41
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47
BDS code 4,3 MB FIELD
STATUS
SIGN
-
MSB = 90 digrees
BEARING TO WAYPOINT
Range -. 1-180, +I801
LSB = 36012 048 degrees
STATUS
MSB = 204.8 min
TIME TO GO
Range = [0,409.6]
LSB = 0.1 min
>TATUS
MSB = 3 276.8 NM
DISTANCE TO GO
Range = [O, 6 553.61
LSB = 0.1 NM
BDS code 4,2 M5 FIELD
STATUS
SIGN --
MSB = 90 degrees
WAYPOINT
LATITUDE
Range = [-180, +I801
LSB = 901131 072 degrees
STATUS
SIGN
MSB = 90 degrees
WAYPOINT
LONGITUDE
Range = [-180, +I801
LSB = got131 072 degrees
STATUS
SIGN
MSB = 65 536 ft
WAYPOINT
CROSSING
ALTITUDE
Range = [O, 131 0681
LSB = 8 ft
BDS code 4,l MI3 FIELD
STATUS
MSB
CHARACTER 1
LSB
MSB
CHARACTER2
LSB
MSB
CHARACTER 3
LSB
MSB
CHARACTER4
LSB
MSB
CHARACTER5
LSB -
MSB
CHARACTER6
LSB -
MSB
CHARACTER7
LSB
MSB
CHARACTER8
LSB
MSB
CHARACTER9
LSB
RESERVED
-
1
2
3
4
5
6
7
-8
9
10
11
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13
14
15
-16 17
18
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-24
25
26
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31
-32
33
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36
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41
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46
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-48
49
50
5 1
52
53
54
55
- 56
-
Alzizrx 10 - Aerortnutical Telecommur~icutiorzs
Table 2-68. BDS code 4,4 - Meteorological routine air report
MB FIELD
WlND SPEED
Volume IZZ
-
1
2
3
4
5
6
7
-8
9
10
11
12
13
14
15
-16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
3 1
-32
33
34
35
36
37
38
39
40
- 4 1
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
.......
PURPOSE: To allow meteorological data to be collected by
ground systems.
FOMISOURGE
STATUS (wind speed and direction)
MSB = 256 kt
Range = [O, 5121
L S B = l k t
SlGN
MSB = 90 degrees
WIND DIRECTION (True)
Range = [-180, +I801
LSB = 1801256 degrees
STATUS
SlGN
MSB = 64°C
STATIC AIR TEMPERATURE
Range = [-128, +I281
LSB = 0.25" --
STATUS -" -
MSB = 1 024 hPa
AVERAGE STATIC PRESSURE
Range = [0,2 0481
LSB = 1 hPa . . . . . .
STATUS . ... TURBU(seLe lEj CE
.. .
STATU...S. . ... ..., MSB = 100%
Range = [O, IOO]
HUMIDITY
LSB = 100164%
-- . ............ .- - ..
FOMISOURCE coding:
The decimal value of the binary coded (figure of merit)
FOMlSOURCE parameter shall be interpreted as follows:
0 = Invalid
1 = INS
2 = GNSS
3 = DMEIDME
4 = VORIDME
5 to 15 = Reserved
1) The interpretation of the two bits assigned to TURBULENCE
shall be as shown in the table for BDS code 4.5.
Note.- The average static pressure is not a requirement of
ICAO Annex 3.
2811 1/02
--
Nu. 77
Part Z
WID FIELD
Annex 10 - Aerorzazktical Telecommunicationss
Table 2-69. BDS code 4,5 - Meteorological hazard report
' " " 1 1 i TURBULENCE
WIND SHEAR
6
STATUS
MICROBURST
STATUS
ICING
14 WAKE VORTEX 11 iz 11 STATUS
SIGN
MSB = 64°C
STATIC AIR TEMPERATURE
Range = [-128, +I281
LSB = 0.25"C
STATUS
MSB = 1 024 hPa
AVERAGE STATIC PRESSURE
Range = [O, 2 0481
LSB = 1 hPa
STATUS
MSB = 32 768 ft
RADIO HEIGHT
Range = [O. 65 5281
LSB = 16ft
PURPOSE: TO provide reports on the severity of meteorological
hazards, in particular for low flight.
Hazard coding:
The interpretation of the two bits assigned to each hazard shall
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