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@ -3,33 +3,34 @@ The Python Mode-S Decoder (2.0-dev)
Python library for Mode-S message decoding. Support Downlink Formats (DF) are:
- Automatic Dependent Surveillance - Broadcast (ADS-B) (DF17)
**Automatic Dependent Surveillance - Broadcast (ADS-B) (DF17)**
- TC=1-4 / BDS 0,8: Aircraft identification and category
- TC=5-8 / BDS 0,6: Surface position
- TC=9-18 / BDS 0,5: Airborne position
- TC=19 / BDS 0,9: Airborne velocity
- TC=28 / BDS 6,1: Airborne status [to be implemented]
- TC=29 / BDS 6,2: Target state and status information [to be implemented]
- TC=31 / BDS 6,5: Aircraft operational status [to be implemented]
- TC=1-4 / BDS 0,8: Aircraft identification and category
- TC=5-8 / BDS 0,6: Surface position
- TC=9-18 / BDS 0,5: Airborne position
- TC=19 / BDS 0,9: Airborne velocity
- TC=28 / BDS 6,1: Airborne status [to be implemented]
- TC=29 / BDS 6,2: Target state and status information [to be implemented]
- TC=31 / BDS 6,5: Aircraft operational status [to be implemented]
- Mode-S Comm-B replies (DF 20 / 21)
**Mode-S Comm-B replies (DF 20 / 21)**
- BDS 1,0: Data link capability report
- BDS 1,7: Common usage GICB capability report
- BDS 2,0: Aircraft identification
- BDS 2,1: Aircraft and airline registration markings
- BDS 3,0: ACAS active resolution advisory
- BDS 4,0: Selected vertical intention
- BDS 4,4: Meteorological routine air report
- BDS 5,0: Track and turn report
- BDS 5,3: Air-referenced state vector
- BDS 6,0: Heading and speed report
- BDS 1,0: Data link capability report
- BDS 1,7: Common usage GICB capability report
- BDS 2,0: Aircraft identification
- BDS 2,1: Aircraft and airline registration markings
- BDS 3,0: ACAS active resolution advisory
- BDS 4,0: Selected vertical intention
- BDS 4,4: Meteorological routine air report
- BDS 5,0: Track and turn report
- BDS 5,3: Air-referenced state vector
- BDS 6,0: Heading and speed report
- DF4 / DF20: Altitude code
- DF4 / DF21: Identity code (squawk)
**DF4 / DF20: Altitude code**
**DF4 / DF21: Identity code (squawk)**
Detailed manual on Mode-S decoding is published by the author, at:
https://mode-s.org/decode