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Technical Provisions for Mode S Services and Extended Squitter

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C-4 <strong>Technical</strong> <strong>Provisions</strong> <strong>for</strong> <strong>Mode</strong> S <strong>Services</strong> <strong>and</strong> <strong>Extended</strong> <strong>Squitter</strong><br />

DRAFT - Working Paper ASP TSGWP11-01 <strong>for</strong> review by the TSG during the meeting in June 2011 in Paris<br />

Table C-2. “TYPE” Code Subfield Definitions (DF = 17 or 18)<br />

TYPE<br />

Code<br />

Subtype<br />

Code<br />

NIC<br />

Supplement<br />

A B C<br />

Format<br />

(Message Type)<br />

Horizontal Containment Radius<br />

Limit (RC)<br />

Navigation Integrity<br />

Category (NIC)<br />

Altitude Type Notes<br />

0<br />

Not<br />

Present<br />

Not<br />

Applicable<br />

No Position In<strong>for</strong>mation<br />

(Airborne or Surface Position<br />

Messages)<br />

RC unknown NIC = 0<br />

Baro Altitude or<br />

No Altitude In<strong>for</strong>mation<br />

1, 2, 3<br />

1<br />

2<br />

3<br />

4<br />

Not<br />

Present<br />

Not<br />

Applicable<br />

Aircraft Identification <strong>and</strong> Category<br />

Message<br />

(§C.2.3.4)<br />

Not Applicable Not Applicable Not Applicable<br />

Category Set D<br />

Category Set C<br />

Category Set B<br />

Category Set A<br />

5 0 -- 0 RC < 7.5 m NIC = 11<br />

6 0 -- 0 RC < 25 m NIC = 10<br />

7<br />

Not<br />

Present<br />

1<br />

0<br />

1<br />

--<br />

--<br />

--<br />

0<br />

0<br />

1<br />

Surface Position Message<br />

(§C.2.3.3)<br />

RC < 75 m<br />

RC < 0.1 NM (185.2 m)<br />

RC < 0.2 NM (370.4 m)<br />

NIC = 9<br />

NIC = 8<br />

NIC = 7<br />

No Altitude In<strong>for</strong>mation<br />

5<br />

8<br />

1<br />

0<br />

--<br />

--<br />

0<br />

1<br />

RC < 0.3 NM (555.6 m)<br />

RC < 0.6 NM (1111.2 m)<br />

NIC = 6<br />

8<br />

0 -- 0<br />

RC > 0.6 NM (1111.2 m) or unknown NIC = 0<br />

9 0 0 -- RC < 7.5 m NIC = 11<br />

10 0 0 -- RC < 25 m NIC = 10<br />

11<br />

1<br />

0<br />

1<br />

0<br />

--<br />

--<br />

RC < 75 m<br />

RC < 0.1 NM (185.2 m)<br />

NIC = 9<br />

NIC = 8<br />

5<br />

12 0 0 -- RC < 0.2 NM (370.4 m) NIC = 7<br />

0 1 -- RC < 0.3 NM (555.6 m)<br />

13 Not<br />

Present<br />

0<br />

1<br />

0<br />

1<br />

--<br />

--<br />

Airborne Position Message<br />

(§C.2.3.2)<br />

RC < 0.5 NM (926 m)<br />

RC < 0.6 NM (1111.2 m)<br />

NIC = 6<br />

Baro Altitude<br />

7<br />

14 0 0 -- RC < 1.0 NM (1852 m) NIC = 5<br />

15 0 0 -- RC < 2 NM (3.704 km) NIC = 4<br />

16<br />

1<br />

0<br />

1<br />

0<br />

--<br />

--<br />

RC < 4 NM (7.408 km)<br />

RC < 8 NM (14.816 km)<br />

NIC = 3<br />

NIC = 2<br />

6<br />

17 0 0 -- RC < 20 NM (37.04 km) NIC = 1<br />

18<br />

0 0 --<br />

RC > 20 NM (37.04 km) or unknown NIC = 0<br />

19<br />

0<br />

1 – 4<br />

5 – 7<br />

Not<br />

Applicable<br />

Reserved<br />

Airborne Velocity Message<br />

(§C.2.3.5)<br />

Reserved<br />

Not Applicable Not Applicable<br />

Difference between<br />

“Baro Altitude” <strong>and</strong><br />

”GNSS Height (HAE)”<br />

20<br />

21<br />

22<br />

Not<br />

Present<br />

0<br />

0<br />

0<br />

0<br />

0<br />

0<br />

--<br />

--<br />

--<br />

Airborne Position Message<br />

(§C.2.3.2)<br />

RC < 7.5 m<br />

RC < 25 m<br />

RC > 25 m or unknown<br />

NIC = 11<br />

NIC = 10<br />

NIC = 0<br />

GNSS Height (HAE) 2<br />

Draft<br />

DRAFT - Working Paper ASP TSGWP11-01 <strong>for</strong> review by the TSG during the meeting in June 2011 in Paris

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