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Wavecom W Code: A Software Decoder that Offers Complete DMR Decryption Capability



  • We have completed our DMR decoder decryption function, supporting all three following encryption methods: Basic mode: with 255 fix scrambling vectors,

  • Enhanced mode: ARC-4 with 255 user defined keys, each 40-bit and

  • Advanced mode: Advanced Encryption Standard (AES-256) using 255 user defined keys, each 256-bit.

The complete function is licensed by Motorola Solutions. Please refer to the Advanced Protocol DMR. Our decryption supports a "late-entry" function: user can change the scrambler or the key value during decryption. This will take immediate effect during the session. This feature is demonstrated in an example — the AES-256 key is changed to a wrong value and back during the session.


  • From the release V11.0.0 onwards Wavecom decoders can decrypt secured communication (at both scrambled and advanced level) in some crucial modes (DMR and NXDN). This function is implemented with the license of Motorola Solutions. With this capability encrypted message will be output in clear text and secured voice will be live audible on the speaker — an essential function in real-time signal monitoring. Other improvements in this release are: Phase plane display in APCO-25.

  • Symbol plane display implemented in NXDN and dPMR.

  • Real timestamp display in DMR and TETRAPOL can be switched on and off.

  • Revision Wavecom classifier.

  • Significant improvement in DMR decoding and protocol extension.




wavecom w code digital data software decoder




  • We made a new release V6.0.0 for our spectrum monitoring product W-SPECTRA. Significant improvement in spectrum analysis and classification.

  • Add the new mode FT8.

  • Improvements in DMR, dPMR, NXDN and TETRAPOL modes.

  • Inline with the decoder release V10.2.0.


  • We made a new release V10.2.0 for our decoder W-CODE, W74PC, W-PCI and W-PCIe. Main features in this release are: DMR with "Symbol Plane" display.

  • TETRAPOL: each frame is displayed with a time-stamp at the time of decoding. With this method we can verify that 50 frames are decoded per second. The similar feature is implemented in DMR decoder as well.

  • Significant improvement of FT8 mode.

  • General improvements.


We extend the most useful hardware decoding feature — two lines simultaneous decoding — to W74PC card. As already in the W-PCI and W-PCIe decoders, the user can connect two different signals to two instances and do decoding and analysis at the same time.


  • We made a new release V10.1.0 for our decoder W-CODE, W74PC, W-PCI and W-PCIe. Main features in this release are: New mode FT8.

  • Review and update HF-ACARS (HFDL). With the outstanding quality we can decode the longest transmission — over half the globe. In Europe we can decode HFDL signals from the Oceania.

  • Significant improvement of TETRAPOL and DMR decoders.

  • General improvements.


  • We incorporate the W-Spectrum Analysis (W-SA) module into the W-SPECTRA application. With this tool we improve its signal analysis ability significantly: In the narrowband (96 kHz) spectrum display, signals are detected and marked with different color labels.

  • The detection results with all details (signal center, bandwidth, strength and those of the sub-signals) are displayed in the text output window and the "Remarks" field for capture into a database.

  • W-SA works also as a "Frequency Search" strategy. Similar to the classification strategy, it searches automatically through the whole frequency band, detects, displays and inserts all signals with their important parameters into a database.

  • All decoders (modes) in this version 4.0.0 match to the W-CODE 10.

  • The display bandwidth of W-SPEED V4.0.0 is extended to 30 MHz.


  • W-CODE 10 can be regarded as a "quantum-leap" release. This version includes mainly a new spectrum analysis and signal detection tool — W-Spectrum Analysis (SA). Main features of this analysis tool are: Detect and measure all signals in a selected bandwidth (4 kHz to 96 kHz).

  • Measuring parameters are signal center (Hz), bandwidth (Hz), level (dB) and detection confidence (in percent).

  • Each signal can be detected in detail containing a number of sub-signals with their parameters.

  • Available in FFT and FFT/Sonagram displays for all radio bands (HF, VUHF and SAT).

  • Detected signals and their sub-signals are marked with their parameters in the display.

  • All results are delivered on the XML remote control interface (XML RCI) for third-party development.

  • Detected signals can be saved with their time-stamp as an XML file for database compatible display and analysis.

  • This is a licensed option and is available for all our HW decoders and W-SPECTRA as well.


We release the TETRAPOL voice decoding in our decoder series W-CODE, W74PC and W-PCI/e V9.3.0 and the spectrum monitoring product W-SPECTRA V3.0.0. TETRAPOL voice will be decoded to audible voice to the speaker for live monitoring purpose. This requires a Live Voice (W-LV) license option. Each voice session will be saved at the same time to a wav file and the original voice frames in bits are saved to a txt file. This feature is helpful for offline decryption analysis when the voice frames are encrypted. Other features in this release are:


PACTOR-4 is an adaptive transmission mode that provides higher throuput and better communication reliability compared to Pactor-I, -II and -III modes. Pactor-4 mode completes the Pactor series in all Wavecom decoders: W-CODE, W-PCI, W-PCIe and W74PC. TETRAPOL is a digital voice and data communication system for mobile services and used for public safety and civilian PMR (Public Mobile Radio). It is running in VHF/UHF band. Other significant improvements and new features are:


W-RECORDER is an ideal option for the existing W-PCIe decoder card. It records signals at their primary level (from antennae, receivers or down converters etc.) for analysis and decoding with various Wavecom applications or third-party products.


From version 8.6.0 onwards Wavecom hardware decoders (W-PCI, W-PCIe and W74PC) and complete decoder systems (W-PCI-LAN and W-PCIe-LAN) include W-CODE. With this extension user can also decode signals from sound devices (soundcard, Virtual Audio Cable VAC and Software Defined Radio SDR, etc.) in the same way as in W-CODE.


We upgraded our LAN decoder systems W-PCIe-LAN and W-PCI-LAN. A spacious 1000 GB solid state disk (SSD) is built in as mass data storage device. This configuration enables our LAN decoder systems to record wideband signals as well &#x97 a must-have functionality in signal intelligence (SIGINT). Detail specification see brochures W-PCIe-LAN and W-PCI-LAN. Pending orders will be delivered with this data storage extension without surcharge. No price change in all valid offers. Already delivered Wavecom LAN decoder systems can be upgraded with this storage extension. Please write to sales@wavecom.ch to get a quotation.


We have redefined our hardware decoder product line. With the launch of W74PC V8.5.1, W-PCIe and W-PCI run under their own logos as well. While the new release has the same decoder functions as W-CODE, W74PC, W-PCIe and W-PCI and their LAN product series have an in-card license key. The CodeMeter license dongle is no longer necessary for our hardware decoder product.


We have launched a new decoder system in hardware and software — W74PC. W74PC offers four completely independent digital down converter (DDC) inputs at IF and AF level, ideally suited for connection to narrowband and broadband receivers and wideband down converters. W74PC has an in-card license and delivers a modern complete solution in classification, decoding and monitoring with various interfaces in hardware and software. No external USB license dongle is necessary anymore.


We publish a comprehensive code example in C++ to show how to control our decoders W-CODE, W-PCI, W-PCIe and W61PC via the XML RCI interface. This code example covers the most XML commands and can give users an idea how to write their own applications to use our decoders without Wavecom decoder GUI.


We have enhanced the DMR (Direct Mobile Radio) decoder significantly. It will be released in W-CODE V8.5.0 end February 2014. DMR catches wide interest in the recent years and is mainly used by public institutions, such as police, transportation etc. With this enhancement both slots can be decoded simultaneously in two separate windows.


Without a doubt, decoding digital signals at the software level has grown in recent years, easily supplanting the hardware decoders, since software packages can be updated and are generally free of hardware constraints. These packages run the gamut from free to the ultra-expensive - and often with the jump in price, you get more complete analysis tools, which may not necessarily be useful for someone starting out.


PC Software DecoderThe W-CODE is a new software decoder of the well known WAVECOM line of decoders.The W-CODE software is designed to work with your existing equipment -no proprietary hardware required. It allows seamless integration with SDR (Software Defined Radio) receivers with IQ data or digital audio outputs. One client license provided with each software package (Multiple licenses on request). W-CODE provides all functions required to analyze, decode and process radio data communications throughout the spectrum (HF, VHF, UHF, SHF).


These features allow the system to be adapted to the client's requirements and applications.The determination of signal characteristics is assisted by a large number of analysis and measurement functions operating over a wide range of signal parameters. The implementation of complex systems for monitoring on a large scale is only limited by the number of decoders and the performance of the hardware and software.The configuration of the system components can be completely adapted to the requirements of the customer.A W-CODE decoder may be controlled from everywhere in the network and its output may be sent to one or more applications on the network.In order to process the data output, control the decoder and the code parameters, ain integrated remote control interfac akllows easy control of the W-CODE from a customer applications.The easy-to-use user interface with well structured pull-down menus allows an operator to become familiar with the W-CODE in a short time. A high degree of operator proficiency can quickly be achieved. All of the integrated analysis tools contain many different methods and viewing options.It assists the operator in analyzing the important signal parameters. Exact measurements are easily made using adjustable cursors with associated numerical displays. Dynamic zoom functions allow magnification of details in any selected window. The scroll buffering feature makes it possible to move back and forward in signal history.Real-time FFT functions with a fast display refresh rate are implemented. Powerful functions provide the tools for analyzing unknown signals.A wide range of system default settings can be configured, e.g. input signal level, measuring interval, centre frequency and demodulator type. 2ff7e9595c


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