package mavsdk.rpc.transponder

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View/edit binary Protocol Buffers messages

Allow users to get ADS-B information and set ADS-B update rates.

• rpc SetRateTransponder (SetRateTransponderRequest, SetRateTransponderResponse)

  transponder.proto:17

  Set rate to 'transponder' updates.

  message SetRateTransponderRequest

  transponder.proto:25

  • double rate_hz = 1

    The requested rate (in Hertz)

  message SetRateTransponderResponse

  transponder.proto:28

  • optional TransponderResult transponder_result = 1

• rpc SubscribeTransponder (SubscribeTransponderRequest, stream TransponderResponse)

  transponder.proto:14

  Subscribe to 'transponder' updates.

  message SubscribeTransponderRequest

  transponder.proto:20

  (message has no fields)

  message TransponderResponse

  transponder.proto:21

  • optional AdsbVehicle transponder = 1

    The next detection

Altitude type used in AdsbVehicle message

Used in: AdsbVehicle

• ADSB_ALTITUDE_TYPE_PRESSURE_QNH = 0

  Altitude reported from a Baro source using QNH reference

• ADSB_ALTITUDE_TYPE_GEOMETRIC = 1

  Altitude reported from a GNSS source

ADSB classification for the type of vehicle emitting the transponder signal.

Used in: AdsbVehicle

• ADSB_EMITTER_TYPE_NO_INFO = 0

  No emitter info.

• ADSB_EMITTER_TYPE_LIGHT = 1

  Light emitter.

• ADSB_EMITTER_TYPE_SMALL = 2

  Small emitter.

• ADSB_EMITTER_TYPE_LARGE = 3

  Large emitter.

• ADSB_EMITTER_TYPE_HIGH_VORTEX_LARGE = 4

  High vortex emitter.

• ADSB_EMITTER_TYPE_HEAVY = 5

  Heavy emitter.

• ADSB_EMITTER_TYPE_HIGHLY_MANUV = 6

  Highly maneuverable emitter.

• ADSB_EMITTER_TYPE_ROTOCRAFT = 7

  Rotorcraft emitter.

• ADSB_EMITTER_TYPE_UNASSIGNED = 8

  Unassigned emitter.

• ADSB_EMITTER_TYPE_GLIDER = 9

  Glider emitter.

• ADSB_EMITTER_TYPE_LIGHTER_AIR = 10

  Lighter air emitter.

• ADSB_EMITTER_TYPE_PARACHUTE = 11

  Parachute emitter.

• ADSB_EMITTER_TYPE_ULTRA_LIGHT = 12

  Ultra light emitter.

• ADSB_EMITTER_TYPE_UNASSIGNED2 = 13

  Unassigned2 emitter.

• ADSB_EMITTER_TYPE_UAV = 14

  UAV emitter.

• ADSB_EMITTER_TYPE_SPACE = 15

  Space emitter.

• ADSB_EMITTER_TYPE_UNASSGINED3 = 16

  Unassigned3 emitter.

• ADSB_EMITTER_TYPE_EMERGENCY_SURFACE = 17

  Emergency emitter.

• ADSB_EMITTER_TYPE_SERVICE_SURFACE = 18

  Service surface emitter.

• ADSB_EMITTER_TYPE_POINT_OBSTACLE = 19

  Point obstacle emitter.

ADSB Vehicle type.

Used in: TransponderResponse

• uint32 icao_address = 1

  ICAO (International Civil Aviation Organization) unique worldwide identifier

• double latitude_deg = 2

  Latitude in degrees (range: -90 to +90)

• double longitude_deg = 3

  Longitude in degrees (range: -180 to +180).

• AdsbAltitudeType altitude_type = 4

  ADSB altitude type.

• float absolute_altitude_m = 5

  Altitude in metres according to altitude_type

• float heading_deg = 6

  Course over ground, in degrees

• float horizontal_velocity_m_s = 7

  The horizontal velocity in metres/second

• float vertical_velocity_m_s = 8

  The vertical velocity in metres/second. Positive is up.

• string callsign = 9

  The callsign

• AdsbEmitterType emitter_type = 10

  ADSB emitter type.

• uint32 squawk = 13

  Squawk code.

• uint32 tslc_s = 14

  Time Since Last Communication in seconds.

Result type.

Used in: SetRateTransponderResponse

• TransponderResult.Result result = 1

  Result enum value

• string result_str = 2

  Human-readable English string describing the result

Possible results returned for transponder requests.

Used in: TransponderResult

• RESULT_UNKNOWN = 0

  Unknown result

• RESULT_SUCCESS = 1

  Success: the transponder command was accepted by the vehicle

• RESULT_NO_SYSTEM = 2

  No system connected

• RESULT_CONNECTION_ERROR = 3

  Connection error

• RESULT_BUSY = 4

  Vehicle is busy

• RESULT_COMMAND_DENIED = 5

  Command refused by vehicle

• RESULT_TIMEOUT = 6

  Request timed out