go2MONITOR What's New?

Check the newest release notes (also available on request) for further details regarding:

  • NB-Server
  • NC-Library
  • Remote control interface for integrators
  • Bugfixes,

Release V20.1 (January 2020)

Most Important Features & Improvements

  • Auto-coverage replaced by Memory-Step and Memory-Scan
  • Automatic monitoring and tasking: Channel raster/bandwidth definition for frequency ranges is supported
  • Setting for handling "almost full" hard disk.
  • Setting to obtain fixed length broadband recordings
  • Default PostgreSql control TCP port changed to 39115
  • Better performance with optimized IPP2019 vector functions
  • New function for defining, saving and loading channel configurations for each narrowband channel. This function replaces the previous function "Channel perspective".
  • Narrowband channel status bar for more structured information display
  • Narrowband channel display widget for displaying status information from a decoder
  • Decoder results Display: "Notifications" to display only the notifications of the decoder. Display types (All*) also show the notifications as grey text
  • Change of the decoder result display type "HEX" to display only hex values without any formatting
  • Automatic monitoring and tasking: Frequency management  redesigned
  • Frequencies: Improved import and handling in the automatic monitoring and tasking option
  • The receiver's overview spectrum can now display search/block frequencies and spectrum activity information
  • Blocked frequencies can be added directly in the overview spectrum
  • Additional columns with detailed modem information in the modem list editor
  • No restriction of the maximum bandwidth value for blocked frequencies
  • Optimized GUI elements for better display at screen resolutions <=1024px
  • Use of the JEDI library for auto-completion in the scripting editor


  • Inmarsat SAT phone uplinks
  • Iridium SAT phone uplinks
  • CHN 4+4
  • VDL2
  • PSK Classifier Improvements
  • Increased frequency range for TETRAPOL detection
  • Improved handling of matching modems to multichannel signals. Modems with non-equidistant channels may be excluded from matching.


  • Robust Packet
  • ALE 3G: demodulation of BW7 with adapted equalizer
  • FSK 400/500splitted  on two modems: CHN MIL 4FSK 400Hz and CHN MIL 4FSK 500Hz
  • APCO25, DMR, dPMR: Improved decoder performance due to soft decision demodulator


  • Metadata extraction from Thuraya uplink decoder
  • Detector for Thuraya uplink, IsatPhone uplink, Iridium uplink
  • Detector for Link22 as described in STANAG4539 Annex D
  • Robust Packet: Complete decoding of PSK2 and PSK4 transmission mode
  • APCO25 Phase 2 downlink: full decoding including voice in both slots and meta data
  • Thuraya sat phone uplink: full decoding of RACH bursts including phone number and GPS-position
  • ALE 3G: Decoding of BW7 bursts including automatic mode detection
  • CODAN 3212: mode (3012 / 3212 / auto) selectable
  • DCS-SelCal: decoding in combination with voice detector
  • Tetrapol: Voice decoding in unencrypted case
  • Tetrapol: VHF encoding mode
  • NXDN: improved performance of automatic key recovery (scramble mode)
  • STANAG 4285: automatic mode search improved and increased error limit
  • 'Status' output channel for live decoder status. This output channel summarizes important meta data and status information (e.g. Tetra Country Code) in one single line
  • 'Notify' output channel to separate user information from decoder result

Hopper Detection

  • Added support for go2MONITOR – Hopper Detection Plugin
  • Improved handling of multiple synchronous inputs


  • Signalhound BB60C receiver
  • CommsAudit CA7852 receiver (only IQ signal, no receiver control)
  • WinRadio G35DDC, DLL version updated to v1.4.2.45
  • R&S EM100, support for older Firmware versions included (<v5.0)
  • NARDA SignalShark also available under Linux
  • Improved time synchronization for receivers which do not deliver timestamp on its own


Release V19.2 (July 2019)

Most Important Features & Improvements

  • Database changed from SQLite to PostgreSQL
  • Added file and stream input to narrowband channels
  • In file/stream mode, narrowband channels can be processed faster than in real time
  • New AutoCoverage mode with fast energy detection allows you to skip to the next range when no signals are present
  • Additional FM demodulation of narrowband channels to process FDM signals
  • Added new subdirectories to the user directory to store user-defined modems/decoders
  • Global blocked frequencies are handled in classifier snapshot mode
  • Support for PXGF streams. A PXGF->WAV converter is also part of the installation
  • You have now always 2 broadband inputs by default. The total system bandwidth is defined in the license file.
  • ResourceView displays important system errors or messages
  • EmissionView: Capability to filter emissions based on modems detected by the classifier and define display colors for each modem
  • Entries in the list of globally blocked frequencies can be added directly from the narrowband channel.
  • Folder observer function in the file player (Wideband and narrowband) to automatically start processing new files from a defined folder
  • Wideband inputs can be hidden in the GUI, e.g. if only narrowband inputs with file/streams are required


  • Yaesu System Fusion Detection
  • ALE 3G Detection
  • Thuraya SAT Phone Uplink Detection
  • APCO 25 Phase 2 Downlink Detection


  • Mil39Tone: Better burst detection and frequency offset correction
  • Improved channel filter for DMR
  • STANAG4538/ALE3G:  New specific demodulator, adaptive equalizer for PSK8 bursts, adaptive multi-path tracking rake receiver for DSSS modulated bursts, improved burst detection


  • New APCO25 Phase 2 down link detector
  • Voice: output of burstinfo
  • Improved voice detector for J3E USB/LSB Nominal
  • Voice: output of burstinfo
  • Mil39Tone: Supports all bit rates and encoding modes , automatic mode detection
  • DMR: TDMA dual direct mode, decoding of rate 1/2 data messages, output of binary data in HEX
  • NXDN: Better detection of NXDN signals, automatic key recovery (scrambler mode)
  • Tetrapol: Better detection Tetrapol signals and if encryption is enabled
  • STANAG4415: Binary data output to file
  • STANAG5065: Binary data output to file
  • STANAG4538/ALE3G: Decoding for BW2 and BW3 (was detection only), BW6
  • Olivia: Added 64 tones variant
  • APCO25:Improved voice decoding
  • YAESU Fusion: Soft-decision decoder with improved performance


  • NARDA SignalShark, control receiver frequency, bandwidth and gain
  • R&S ESMD, IQ stream input support, (control available optionally by using Python scripts)
  • ThinkRF R5500 (408/427)
  • ThinkRF WSA5000 (408)
  • ExtIO plugins: 64-bit interface will also work, Removed drivers that arfe under GPLfrom the standard product

Narrowband FDM

With go2MONITOR real-time de-multiplexing, de-channeling, decoding and recording of extracted FM-FDM channels is now possible.

FM FDM signal

GUI with disabled Wideband Inputs

The new narrowband channel input options in go2MONITOR allow you to work without wideband input when only file or stream input is required.

GUI with Removed Wideband Input

Release V19.1 (January 2019)

New decoders:

  • YAESU System Fusion
  • ALIS2 (before detection-only)

Improved decoders:

  • INMARSAT-C-TDM: EGC mode (SafetyNet, FleetNet)
  • CODAN3212 (single channel): 150/300bps modes, soft decision, ARQ, STANAG5066
  • NXDN: descrambling with known key
  • Pactor 3: soft decision demodulation
  • Pactor 2/3: support for AirMail/SailMail
  • D-STAR: improved synchronization, data output

Improved demodulators:

  • FSK disc.: soft symbol output support
  • Pactor 2/3:
    • increased burst detector robustness to frequency deviation
    • make use of burst length information from decoder
    • improved burst start detection


PSK and (G)MSK modulated signals are now classified up to 125 kBd symbol rate and 200 kHz signal bandwidth. FSK2 signals are enhanced up to 75 kBd.

The modem classification feature supports now following additional modems:

  • GSM
  • CIS-45 33 Bd OFDM
  • CIS-45 40 Bd OFDM
  • CIS-60 OFDM
  • CIS-93 OFDM
  • CIS-112 OFDM
  • CIS-128 OFDM

Automatic AND Manual Monitoring

Working with manually selected channels and working in parallel with automatic tasks is now fully supported. This gives you much more flexibility, as you no longer have to decide whether you want to work in manual or automatic mode.

Typical situation: You are working in automatic mode and see a new, interesting signal on the screen (or in the ResultViewer). In this situation you simply open a manual channel and start manual processing. The number of automatic channels is automatically reduced.
After you have finished your manual work, you release the channel and it will be added back to the automatic mode.

Live audio (left) and HF search (right)

Simulated Scan also for ExtIO Receivers

We have added a generic scan function.
Decoding is stopped and the receiver steps through the defined frequency range to give you a quick overview of the local spectrum.

Wideband spectrum (by stepping)

Partial Extraction of Meta Data

Depending on the decoder (e.g. HFDL, ALE-2G, ACARS, VDL2, etc.) the decoded text contains many interesting metadata like transmitter (station) or receiver identification, call sign, aircraft or ship position, communication type, etc. The new feature automatically extracts decoded metadata and stores it in appropriate database fields for further processing such as filtering, sorting or displaying positions on the map.

ResultViewer with Meta Data