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Division 3 The following data items shall be made available to the transponder and be transmitted by the transponder via Version 2 of the extended squitter (ES) ADS-B protocol in accordance with the formats specified in ICAO document 9871 (2nd edition):

United Kingdom

Original text. Later amendments are not shown.

  1. (a)

    24-bit ICAO aircraft address;

  2. (b)

    aircraft identification;

  3. (c)

    Mode A code;

  4. (d)

    special position indication (SPI) using the same source as for the same parameter specified in Part A;

  5. (e)

    emergency status (general emergency, no communications, unlawful interference) using the same source as for the same parameter specified in Part A;

  6. (f)

    ADS-B version number (equal to 2);

  7. (g)

    ADS-B emitter category;

  8. (h)

    geodetic horizontal position in accordance with the world geodetic system revision 1984 (WGS84) latitude and longitude, both while airborne or on the ground;

  9. (i)

    geodetic horizontal position quality indicators (corresponding to the integrity containment bound (NIC), 95 % navigation accuracy category for position (NACp), source integrity level (SIL) and system design assurance level (SDA));

  10. (j)

    pressure altitude using the same source as for the same parameter specified in Part A;

  11. (k)

    geometric altitude in accordance with the world geodetic system revision 1984 (WGS84), provided in addition and encoded as a difference to pressure altitude;

  12. (l)

    geometric vertical accuracy (GVA);

  13. (m)

    velocity over ground, both while airborne (east/west and north/south airborne velocity over ground) or on the ground (surface heading/ground track and movement);

  14. (n)

    velocity quality indicator corresponding to navigation accuracy category for velocity (NACv);

  15. (o)

    coded aircraft length and width;

  16. (p)

    global navigation satellite system (GNSS) antenna offset;

  17. (q)

    vertical rate: barometric vertical rate using the same source as for the same parameter specified in the data item in point 2 (g) of Part C when the aircraft is required and capable to transmit this data item via the Mode S protocol, or Global Navigation Satellite System (GNSS) vertical rate;

  18. (r)

    mode control panel/flight control unit (MCP/FCU) selected altitude using the same source as for the same parameter specified in Part C when the aircraft is required and capable to transmit this data item via the Mode S protocol;

  19. (s)

    barometric pressure setting (minus 800 hectoPascals) using the same source as for the same parameter specified in Part C when the aircraft is required and capable to transmit this data item via the Mode S protocol;

  20. (t)

    ACAS active resolution advisories when the aircraft is equipped with TCAS II using the same source as for the same parameter specified in Part A.

Notes on Part B: Secondary surveillance radar transponder capabi

Textual amendments

F1

Substituted by Commission Implementing Regulation (EU) 2017/386 of 6 March 2017 amending Implementing Regulation (EU) No 1207/2011 laying down requirements for the performance and the interoperability of surveillance for the single European sky (Text with EEA relevance).