Technical Provisions for Mode S Services and Extended Squitter
Technical Provisions for Mode S Services and Extended Squitter
Technical Provisions for Mode S Services and Extended Squitter
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Appendix B B-3<br />
TYPE<br />
code<br />
Subtype<br />
code<br />
0 Not<br />
present<br />
NIC<br />
supplement<br />
Not<br />
applicable<br />
Format<br />
(message type)<br />
No position<br />
in<strong>for</strong>mation(airborne<br />
or surface position)<br />
Horizontal containment<br />
radius limit (RC)<br />
Navigation integrity<br />
category (NIC)<br />
RC unknown NIC = 0 Barometric altitude<br />
or<br />
no altitude<br />
in<strong>for</strong>mation<br />
Altitude<br />
type Notes<br />
1 Category set D<br />
2 Not Not Aircraft identification<br />
Not<br />
Not<br />
Not Category set C<br />
3<br />
present applicable <strong>and</strong> category(§B.2.3.4)<br />
applicable<br />
applicable applicable<br />
Category set B<br />
4<br />
5 Not 0 Surface RC < 7.5 m NIC = 11<br />
6<br />
present<br />
0<br />
position(§B.2.3.3)<br />
RC < 25 m NIC = 10<br />
7<br />
8<br />
1 RC < 75 m NIC = 9<br />
0 RC < 0.1 NM (185.2 m) NIC = 8<br />
0<br />
RC > 0.1 NM (185.2 m) or unknown NIC = 0<br />
No altitude<br />
in<strong>for</strong>mation<br />
1, 2, 3<br />
Category set A<br />
9 Not 0 Airborne position RC < 7.5 m <strong>and</strong> VPL < 11 m NIC = 11 5<br />
10<br />
present<br />
0<br />
(§B.2.3.2)<br />
RC < 25 m <strong>and</strong> VPL < 37.5 m NIC = 10 5<br />
11<br />
1 RC < 75 m <strong>and</strong> VPL < 112 m NIC = 9<br />
0 RC < 0.1 NM (185.2 m) NIC = 8<br />
12 0 RC < 0.2 NM (370.4 m) NIC = 7<br />
13<br />
1 RC < 0.6 NM (1111.2 m)<br />
0 RC < 0.5 NM (926 m)<br />
NIC = 6<br />
14 0 RC < 1.0 NM (1852 m) NIC = 5<br />
15 0 RC < 2 NM (3.704 km) NIC = 4<br />
16<br />
1 RC < 4 NM (7.408 km) NIC = 3<br />
0 RC < 8 NM (14.816 km) NIC = 2<br />
17 0 RC < 20 NM (37.04 km) NIC = 1<br />
18<br />
19<br />
0<br />
0 Not<br />
Reserved<br />
1 — 4<br />
applicable<br />
Airborne velocity<br />
(§B.2.3.5)<br />
5 — 7<br />
Reserved<br />
RC > 20 NM (37.04 km) or unknown NIC = 0<br />
Not<br />
applicable<br />
Not<br />
applicable<br />
Barometric<br />
altitude<br />
Difference between<br />
“barometric<br />
altitude” <strong>and</strong><br />
“GNSS height<br />
(HAE)”<br />
Draft<br />
20 Not 0 Airborne RC < 7.5 m <strong>and</strong> VPL < 11 m NIC = 11 GNSS height<br />
2, 5<br />
21<br />
present<br />
0<br />
position(§B.2.3.2)<br />
RC < 25 m <strong>and</strong> VPL < 37.5 m NIC = 10<br />
(HAE)<br />
2, 5<br />
22<br />
23<br />
24<br />
DRAFT - Working Paper ASP TSGWP11-01 <strong>for</strong> review by the TSG during the meeting in June 2011 in Paris<br />
0<br />
0<br />
Not<br />
Test message<br />
1 — 6 applicable Reserved<br />
7 Allocated <strong>for</strong> national use<br />
0 Reserved <strong>for</strong> surface system status<br />
RC > 25 m or VPL > 37.5 m or RC or<br />
VPL are unknown<br />
1 Surface System Status (Allocated <strong>for</strong> National Use)<br />
2 – 7 Reserved<br />
25<br />
26<br />
Reserved<br />
27 Reserved <strong>for</strong> trajectory change<br />
28 0 Reserved<br />
1 Emergency/priority status (§B.2.3.8)<br />
2 ACAS RA broadcast<br />
3 — 7<br />
Reserved<br />
NIC = 0<br />
DRAFT - Working Paper ASP TSGWP11-01 <strong>for</strong> review by the TSG during the meeting in June 2011 in Paris<br />
6<br />
5, 6<br />
7<br />
2
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