Appendix F F-15 Figure F- 3. Format of BDS register 6216, Target State and Status Information (Subtype 1; Compatible with ADS-B Version Number = 2) 1 PURPOSE: To provide aircraft state and status 2 information.
3 FORMAT TYPE CODE = 29 4 5 6 MSB SUBTYPE CODE = 1 7 LSB 8 SIL SUPPLEMENT (0=Per Hour, 1=Per Sample) 9 SELECTED ALTITUDE TYPE (0=MCP/FCU, 1=FMS) 10 MSB = 32768 feet 11 MCP / FCU SELECTED ALTITUDE 12 (when Selected Altitude Type = 0) 13 FMS SELECTED ALTITUDE 14 (when Selected Altitude Type = 1) 15 Coding: 111 1111 1111 = 65472 feet 16 *** **** **** 17 000 0000 0010 = 32 feet 18 000 0000 0001 = 0 feet 19 000 0000 0000 = No data or Invalid 20 LSB = 32 feet 21 MSB = 204.8 millibars 22 BAROMETRIC PRESSURE SETTING (MINUS 800 millibars) 23 Range = [0, 408.0] Resolution = 0.8 millibars 24 Coding: 1 1111 1111 = 408.00 millibars 25 * **** **** 26 0 0000 0010 = 0.800 millibars 27 0 0000 0001 = 0.000 millibars 28 0 0000 0000 = No Data or Invalid 29 LSB = 0.8 millibars 30 STATUS (0=Invalid, 1=Valid) 31 Sign (0=Positive, 1=Negative) 32 MSB = 90.0 degrees 33 34 SELECTED HEADING 35 Range = [+/- 180] degrees, Resolution = 0.703125 degrees 36 (Typical Selected Heading Label = “101”) 37 38 39 LSB = 0.703125 degrees (180/256) 40 MSB 41 NAVIGATION ACCURACY CATEGORY FOR POSITION (NACP) 42 43 LSB 44 NAVIGATION INTEGRITY CATEGORY FOR BARO (NICBARO) 45 MSB SOURCE INTEGRITY LEVEL (SIL) 46 LSB 47 STATUS OF MCP / FCU MODE BITS (0 = Invalid, 1 = Valid) 48 AUTOPILOT ENGAGED (0 = Not Engaged, 1 = Engaged) 49 VNAV MODE ENGAGED (0 = Not Engaged, 1 = Engaged) 50 ALTITUDE HOLD MODE (0 = Not Engaged, 1 = Engaged) 51 Reserved for ADS-R Flag 52 APPROACH MODE (0 = Not Engaged, 1 = Engaged) 53 TCAS/ACAS OPERATIONAL (0 = Not Operational, 1 = Operational) 54 LNAV MODE (0 = Not Engaged, 1 = Engaged) 55 MSB RESERVED 56 LSB
Appendix G G-1 APPENDIX G. ADVISORY CIRCULAR FEEDBACK INFORMATION If you find an error in this AC, have recommendations for improving it, or have suggestions for new items/subjects to be added, you may let us know by (1) complete the form online at https://ksn2.faa.gov/avs/dfs/Pages/Home.aspx or (2) emailing this form to 9-AWA-AVS-AIR- DMO@faa.gov Subject: AC 20-151C Date: ___________ Please check all appropriate line items:
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