SatNOGS DB - 44352

Transmitters

Mode U CW Beacon

Type

Transmitter

Service

Unknown

Downlink Mode

Downlink

437525000

Updated on 2019-06-24 00:54 by fredy

Citation for EK6A86Nt8ApPK4AiSSHKuF

http://www.amsatuk.me.uk/iaru/finished_detail.php?serialnum=237

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Mode U GMSK38k4

Type

Transmitter

Service

Unknown

Downlink Mode

GMSK

Baud

38400.0

Downlink

437525000

Updated on 2019-06-24 11:11 by fredy

Citation for V8ftSCUFrz3U7uwQr8Ne98

http://www.amsatuk.me.uk/iaru/finished_detail.php?serialnum=237

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Mode U GFSK19k2

Type

Transmitter

Service

Unknown

Downlink Mode

GFSK

Baud

19200.0

Downlink

437525000

Downlink Drifted

-5257

Updated on 2019-07-01 12:21 by fredy

Citation for KvhPyZKYATt2gso5y3mPPU

https://network.satnogs.org/observations/784265/

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Data Decoding Structs

ARMADILLO Telemetry

Decoder Script

armadillo

Decoder Struct

Click here

Kaitai Struct for ARMADILLO Telemetry

See kaitai.io for more information on the format.

---
meta:
  id: armadillo
  endian: le
doc: |
  :field dest_callsign: ax25_frame.ax25_header.dest_callsign_raw.callsign_ror.callsign
  :field src_callsign: ax25_frame.ax25_header.src_callsign_raw.callsign_ror.callsign
  :field src_ssid: ax25_frame.ax25_header.src_ssid_raw.ssid
  :field dest_ssid: ax25_frame.ax25_header.dest_ssid_raw.ssid
  :field ctl: ax25_frame.ax25_header.ctl
  :field pid: ax25_frame.payload.pid
  :field rf_message: ax25_frame.payload.data_payload.rf_message

seq:
  - id: ax25_frame
    type: ax25_frame
    doc-ref: 'https://www.tapr.org/pub_ax25.html'

types:
  ax25_frame:
    seq:
      - id: ax25_header
        type: ax25_header
      - id: payload
        type:
          switch-on: ax25_header.ctl & 0x13
          cases:
            0x03: ui_frame
            0x13: ui_frame
            0x00: i_frame
            0x02: i_frame
            0x10: i_frame
            0x12: i_frame
            # 0x11: s_frame

  ax25_header:
    seq:
      - id: dest_callsign_raw
        type: callsign_raw
      - id: dest_ssid_raw
        type: ssid_mask
      - id: src_callsign_raw
        type: callsign_raw
      - id: src_ssid_raw
        type: ssid_mask
      - id: ctl
        type: u1

  callsign_raw:
    seq:
      - id: callsign_ror
        process: ror(1)
        size: 6
        type: callsign

  callsign:
    seq:
      - id: callsign
        type: str
        encoding: ASCII
        size: 6

  ssid_mask:
    seq:
      - id: ssid_mask
        type: u1
    instances:
      ssid:
        value: (ssid_mask & 0x0f) >> 1

  i_frame:
    seq:
      - id: pid
        type: u1
      - id: ax25_info
        size-eos: true

  ui_frame:
    seq:
      - id: pid
        type: u1
      - id: data_payload
        type: armadillo_payload
  armadillo_payload:
    seq:
      - id: padding
        size: 146
      - id: rf_message
        type: str
        encoding: ASCII
        terminator: 0
      - id: tail
        size-eos: true