Python library for Mode-S message decoding. Two separate methods are implemented to decode the following messages:

• Automatic Dependent Surveillance – Broadcast (ADS-B) (DF17)
  • aircraft information that contains: ICAO address, position, altitude, velocity (ground speed), callsign, etc.
• Mode-S Enhanced Surveillance (EHS) (DF20 and DF21). Additional information in response to SSR interrogation, such as: true airspeed, indicated airspeed, mach number, wind, temperature, etc.
  • BDS 2,0 Aircraft identification
  • BDS 2,1 Aircraft and airline registration markings
  • 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

A detailed manual on Mode-S decoding is published by the author, at: http://adsb-decode-guide.readthedocs.io

Checkout and contribute to this open source project at: https://github.com/junzis/pyModeS