go2signals go2MONITOR Features

In order to properly monitor the situation, the spectrum must be continuously monitored.
The most efficient way to do this is with a fully automated 24/7 workflow.

To use automatic processing features, the operator creates tasks and missions. The results are stored in a database for further evaluation. An advanced ResultViewer shows a tabular or graphical representation of the stored data.

  • PROCITEC releases two updates per year with new functions and additional decoders
  • MIL decoders require an End User Certificate outside Germany
  • PMR decoders require an End User Certificate outside EU/Wassenaar
  • Due to the complexity of the software, not all functions are described on the website. Please also study the brochure and the user manual

Multi Wideband Signal Input

go2MONITOR is ready to run two (more on request) multiple wideband inputs side-by side in one application. The wideband inputs can come from multiple receivers like:

  • PLATH SIR 2115, SIR 511X receiver
  • IZT R3xxx (4 channels)
  • WiNRADiO G39 (2 channels)

For decoding, the narrowband/production channels can be setup completely independent, giving full flexibility.
Tabs are used to show multiple receivers (to safe space) or receivers can also be displayed side by side.

Typical scenarios:

  • Work with multiple receivers connected to different antennas (different locations, directions, polarization, etc.) and select the best one for decoding.
  • Monitor HF and VHF/UHF at the same time using different receivers
  • Monitor multiple frequency ranges at the same time and use the available decoding channels according to your requirements.
  • Simultaneous decoding/recording from one receiver and additional playback of recorded files. Even during monitoring you can start working on recorded files.

Classifier, Recognition

The classifier is an important component in non-cooperative communications monitoring in which a listener desires to intercept unknown signals.

go2MONITOR contains a multi-stage classifier with the following functions:

  • Detection of all signals in the available frequency range
  • Modulation type classification
  • Detailed signal parameters measurement
  • Pre-classification of some protocols

go2MONITOR offers different tools for automatic tuning and decoding of signals, a big advantages compared to other decoders where you are fixed to one work flow.

The tools used are:

  • Continuous narrow-band classifier (provided in the production channel)
  • Snapshot classification, provided in the spectrum (spectrogram/FFT) display
  • Continuous wideband classification provided in the spectrum (spectrogram/FFT) display in Automatic Monitoring and Tasking (Option) mode
  • Recognition and Decoding (provided in the production channel)
    The production channel uses a configurable list of decoders and checks in parallel which one of these decoders is matching the received signal.
  • Classification, Recognition and Decoding
    With the information (modulation, symbol-rate, shift etc,) of the classification, a dynamic modem list is prepared. Then this list is used for Recognition and Decoding

Types of Classifiers

Classifier Source Trigger max. Span max. Signal BW Meas. periode
NB Classifier DDC
RX-IQ stream
Continuous HF: 1 MHz
HF: 50 kHz
VHF/UHF: 300 kHz
ca. 4 s
WB Snapshot Classifier RX-IQ stream
10, 20, 30, 60, 120 s
HF: 1 MHz
HF: 50 kHz
VHF/UHF: 300 kHz
ca. 4 s
WB Classifier
with AMT Option
RX-IQ stream
Continuous HF: 1 MHz; VHF/UHF: 5 MHz (default)
HF: 1 MHz; VHF/UHF: 10 MHz (Option WCL 10)
HF: 2.4 MHz; VHF/UHF: 20 MHz (Option WCL 20)
HF: 50 kHz
VHF/UHF: 300 kHz
ca. 4 s
Modem classification       NB max. 1.6 MHz (DECT)
WB max 18 MHz (LTE)


A production channel uses a configurable list of decoder/modems. The best match is selected for decoding. The signal is demodulated, decoded and the results are displayed. Depending on your go2MONITOR version 1, 2 4, 8, 16, 32 or any other number of production channels are available.


  • Reliable recognition, demodulation and decoding of data signals and voice signals
  • Determination of technical parameters for display and decoding
  • Processing of signals without loss
  • Extraction of information about the transmission protocol, meta data, time-stamp
  • Signal decoding down to the content like text, audio, binaries etc.
  • Storing the output to files/database
  • Extendible by the customer (Universal demodulators, Decoder Description Language)
  • Adaptive demodulators and soft-decision decoding

The result display shows the collected results in detail and can be configured using the Extensible Style sheet Language (XSLT). Up to eight production channels can be used in parallel in manual mode, up to a few hundred in automatic mode.


All results are stored automatically in a PostgreSQL database. There is no need for the user to explicitly “save” results!

The ResultViewer shows the following information:

  • Recognized decoders
  • Wide-/Narrowband classification results
  • Content: Decoder output, demodulated audio, binary
  • Meta Data, System Data, Classification results
  • Recorded wide-/narrowband IQ-data
  • GEO information on a map

Data export is possible into a CSV file for further processing with Excel or another application. It is possible to export all data or only a subset of data created using filter/structure/sorting/masking.
You can add your own export functions in Python to create e.g.:


Table View

  • All information available for the current filter/structure are display in a table. The column selection and the sorting and filtering can be changed

Graphic View

  • The Time/Frequency view shows the same results as the table view, but in graphical form

Map View

  • The position of the system and transmitter are displayed on a map
  • Received geo location information from HFDL, AIS, etc. are extracted (PYTHON scripting, can be modified)
  • Direction finder DF. The interface to the DF can be done by using PYTHON scripting

Bulk File Processing

You can process recorded signals directly from specified folders with predefined options.
It is possible to monitor folders and process new files automatically. This allows easy connection of go2MONITOR to existing tools and systems from TCI (Blackbird), IZT, CRFS, decodio etc.


  • Straightforward integration into existing system (no programming required)
  • An external source creates recording of signals and stores them in the files system
  • Files gets automatically decoded
  • Files are decoded at full speed (depends on license)
  • Results are stored in the database
  • Operators use ResultViewer’s to access results, the output can get further processed by operators or additional software