go2DECODE 17.2

by Rolf Haenggi

Release 17.2

Version Highlights

  • Tetrapol (complete decoding of the up and downlink data layers
  • CIS FSK 200/1000
  • INMARSAT-C-TDMA
  • Motorola Smartnet
  • XPA
  • XPA2
  • Merod 267 Bd
  • Support for PLATH SIR 2115
  • Support for CommsAudit CA781

Features and Improvements

  • Linux version available
  • Production memory moved to user folder (was C:\mem_prod)

Decoder/APC

  • Maximum supported input sampling rate increased to 10 MHz
  • GMSK demodulator improved for BT values less than 0.5
  • New decoder for:
    • CIS FSK 200/1000
    • INMARSAT-C-TDMA
    • Motorola Smartnet
    • XPA
    • XPA2
    • Merod 267 Bd
    • Tetrapol (complete decoding of the up and downlink data layers)
  • New detector for:
    • MIL 188-110C App.D (Wideband HF) 3/6/9/12/15/18/21/24 kHz
    • Japanese Slot Machine
    • DPRK PSK 150/300/600/1200 Bd (North Korean diplo link)
  • Extended decoders:
    • STANAG 5066, realized in STANAG 4285, STANAG 4529, STANAG 4539. Postprocessing to retrieve email contents (HMTP and CFTP) and store the content in files
    • CPDLC and ADS-C protocol for HFDL, ACARS, VDL2, INMARSAT-AERO
    • INMARSAT-AERO P,R,T,C, complete decoding of data layers

Receivers

  • Preliminary support for PLATH SIR 2115
  • Added generic support for VITA49 receivers (must be configured for each receiver type separately)
  • Added support for CommsAudit CA781 receiver (VITA49)

DANA

  • Select file replay speed (faster or slower than real time)

SDA

  • Show sampling rate of input signal in bottom status bar
  • Sonagram display:
    • SNR measurement with help of cursors
    • Option to show power density spectrum (PSD)
    • Show dBm values instead of dBFS if supported by the connected receiver
  • Analysis display:
    • SNR measurement with help of cursors
  • Bit display
    • Correctly resize of the axis labeling when zooming
  • Spectrum display
    • Option to show power density spectrum (PSD)
    • Always show control frequency display (but it is smaller and cannot be moved anymore)

SOMO

  • SNR measurement with help of cursors
  • Option to show power density spectrum (PSD)

Bug Fixes

  • APC
    • Automate: Burst info from decoder was ignore (sometimes at the start, at end of emission (flush))
    • Decoder
      • ALE-2G: long addresses were shortened when repeated
      • STANAG 4538: fix for TM-PDU
      • HFDL: some long uplink bursts were not decoded
      • Morse: avoid crash when call sign contains German Umlauts
  • DANA
    • Control from command line had problems when successive commands were sent too fast
    • Receiver frequency (from file input) larger than 2^31 Hz were not correctly displayed
  • Decoder Debugger
    • Online debugger was under certain conditions very sluggish
    • Large octal numbers were not correctly displayed
  • Decoder Editor
    • Replace All: replace in complete document and not only from the current cursor position
  • SDA
    • Control connection to APC was lost with large input bandwidth
    • Bit display
      • Correctly resize axis labeling when zooming
      • Offset == 0 was not allowed
    • Spectrum display
      • 128k FFT did not work
  • SOMO
    • Level of complex file output was 6 dB too low

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