Release go2signals 24.1

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Release go2signals 24.1

by Rolf Haenggi

The latest version contains several functions that improve the functionality and quality of the software.

Signal Analyzer

The modulation parameters for a signal are analyzed first, and in the next step the signal is demodulated to obtain the bit stream for further analysis.

The software now offers the option of demodulating the signal. Included are the demodulators for FSK and PSK, which can be parameterized in a wide range and include additional functions such as adaptive equalization and automatic FSK fading correction.

The Signal Information Database has been expanded and now contains 450 entries of HF, VHF and UHF signals.

go2MONITOR

go2MONITOR now includes an advanced multi-track audio demodulator and player as standard. I'ts working with the IQ files.
The tracks are parameterized using the available information from the results database. In addition, each track can be set manually with its own demodulator parameters such as modulation, squelch, filter bandwidth, BFO offset, etc.

Classifier

  • Classification of ASK2/4 signals up to 50 kBd
  • Classification of OQPSK signals up to 50 MBd

 

The Map Display comes with a new look and new user interface. In addition to the integrated offline maps, users can also access maps from any other configured server (e.g. OpenStreetMap).

Various Automatic Task options have been added to improve control over stopping task actions or limiting the number of channels used by the task.

New filter function in the ResultViewer to display all results recently added to the system.

SOMO

Further constellations for the QAM modulation type have been added.

Decoders & Demodulators

Demodulators:

  • Morse F1A: Now also usable for search mode
  • PSK: Improved burst detection of signals beginning with PSK2

Decoders

  • CHN BPSK 2400 Bd
  • CHN MIL 64 FSK
  • CHN pi/2 BPSK 2400 Bd
  • CIS DataLink 1200/800 MS2
  • FLARM
  • Fax Group 3
  • FreeDV
  • ZVEI-VDEW
  • DMR: added tooltips for decoder parameters regarding decryption
  • Morse: added modems A2A and F2A for morse in combination with primary modulation
  • APCO25: updated MFID table entries
  • NXDN: decryption of DES encrypted voice with known key
  • Decoding of Motorola Location Request Response Protocol (LRRP) in some decoders
    • Tetra
    • DMR
  • Decoding of OHMA messages (acars) in several decoders
    • HFDL
    • VDL2
    • ACARS
    • Inmarsat AERO P/R/T
  • Detection of EOM sequence
    • CODAN 3212 1 Channel
    • CODAN 3212 1 Channel 75bps
    • CODAN 3212 1 Channel HDR
    • STANAG 4285
    • STANAG 4415
    • STANAG 4539
    • STANAG 4539 HDR

New Decoder Detection

  • Maritime Mesh Network Traffic Management
  • CHN MIL Datalink 30 Tone
  • Harris RF-5800 SelCal

New pyDDL Functions

  • ProductionMemory
    • report_fi le(path): accepts now paths with backslashes
    • open(): relaxed constraints for fi le extension lengths (1-10) and allowed double extension
    • copy(path): new function to copy an arbitrary file to production memory
  • search_polynom: new function to search for bit sequences generated from a known LFSR
  • SymbolStream/BitStream: new properties symbol_rate/bit_rate to query the current demodulator measured symbol rate or bit rate

Receiver Support

  • Support of IZT R507x receiver family
  • VITA49 templates for automatic streaming format detection
  • Tool vrt2stream to provide reading of VITA49 files and streaming

More

  • Added support for Ubuntu Linux OS
  • New remote control interface enabling the control of all Automatic Wideband Monitoring (AMT) functions, e.g. creating, editing or deleting missions and tasks
  • New shortcut-based functions to move fast through wideband spectrogram (Ctrl+Left/Right) and to open the signal under the mouse in the Channel 1 (Ctrl+Down)
  • New context menu function to open narrowband signal file directly from ResultViewer in the narrowband channel as file input
  • User can now choose how many rows should be displayed in the table view of the ResultViewer (was fixed to 1000 rows in the previous version)
  • Enabling/Disabling multiple tasks at once in TaskOverview is now possible
  • New functions in TaskOverview to change time range of multiple tasks at once
  • Emission structure display in narrowband channel now includes a widget for frame length setting in pixels too
  • Current audio demodulator settings are displayed below the spectrogram in the narrowband channel
  • New context menu option in TaskOverview to open manual narrowband channel on the frequency of one task based channel
  • Various performance optimizations, especially for large configurations with dozens of clients and hundreds of channels. Messaging has been optimized to provide significantly better throughput, Scheduler can now run more simultaneous actions with more output,
  • Loop-Recording can now process much more recordings etc.
  • Autorange function in WB/NB-spectrograms is now a checkable option, i.e. can be turned on or off. If turned off, it will never change user settings for min/max level.
  • Simple context sensitive help available by using F1 shortcut
  • Multiselect-Combobox usability improved: typing the text while the combobox has focus, will immediately open its dropdown and the filter function
  • Display options on a Result-Detail, Signal-Tab in ResultViewer are now saved and reused after restarting the GUI
  • NB-channel now saves the last audio demodulation bandwidth into its configuration too
  • Decoder parametrization: New functions to copy/paste the content of parameter tables (for example Morse Alphabet)
  • Number of displayed tasks or channels is now visible in the TaskOverview above each table
  • Changed text in the antenna combobox: ’No antenna’ instead of ’Off’

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