Wavecom Digital Data Decoders

Decades of Experience
W-CODE Digital Data Software Decoder
W-PCI Digital Data Decoder PCI Card
W-PCI-LAN Digital Data Decoder Box
Klingenfuss Radio Monitoring and WAVECOM
Analysis Modes
Separate Options are now included!
Signal Classifier Software
Satellite Monitoring Software
Bit View Tool
Low Tax

Decades of Experience

The WAVECOM W-CODE and W-PCI series of products offer all the necessary functions to analyze, decode, record and process radio data communications in the HF VHF UHF SHF satellite range. These products are simply the very best professional digital data decoders worldwide at a reasonable cost: for latest prices click here.

Only Klingenfuss Radio Monitoring - and no other WAVECOM dealer worldwide! - can look back on more than two decades of daily working experience with WAVECOM products. No other WAVECOM dealer worldwide has published thousands of life screenshots from more than 46 years of continuous real radio monitoring on his website!

For hundreds of the very latest Klingenfuss screenshots of WAVECOM digital data decoders click here. For more than 10,300 (ten thousand three hundred!) screenshots see our brandnew Digital Data Decoder Screenshots on USB Stick!

Wavecom W-CODE Digital Data Software Decoder

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The W-CODE is designed to work with your existing equipment, since no proprietary hardware is required. It allows seamless integration with state-of-the-art SDR (Software Defined Radio) receivers with IQ data or digital audio outputs such as MICROTELECOM's Perseus or WINRADIO's Excalibur. Such state-of-the-art receivers and the W-CODE make a real dream team! W-CODE provides all functions required to analyze, decode and process radio data communications throughout the spectrum (HF, VHF, UHF, SHF). More than 200 modes are currently implemented, including INMARSAT modes. And only recently, WAVECOM has cracked GW-OFDM ...

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System requirements: high-quality soundcard, Microsoft Windows XP or later, Pentium 4, 1.6 GHz, 512 MB RAM.

Wavecom W-PCI Digital Data Decoder Card

The W-PCI Digital Data Decoder Card for two channels is the successor of the famous series of WAVECOM hardware decoders such as the W61PC, and comprises a half-size PCI board plus the pertinent W-CODE Digital Data Decoder Software. The W-PCI card is ideal for decoding signals coming from a "traditional" receiver using the AF/IF input, since it is superior to a sound card. Typical applications are monitoring HF VHF UHF signals, and INMARSAT monitoring using a 70 MHz down converter. Two versions are available: W-PCI with a standard 132 Mb/s bus interface ...

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... and W-PCIe with a high-speed 250 Mb/s express bus interface.

Wavecom W-PCI-LAN Digital Data Decoder Box

Front view

High portability and quick setup makes this small shielded metal cabinet the first choice for

The W-PCI-LAN operates from 9 - 30 V DC power sources. It offers all the necessary functions to analyze, decode, record and process radio communication transmissions. The W-PCI-LAN Box includes

The software application is identical to the W-CODE Digital Data Software Decoder. The system can be connected to a PC or laptop via LAN. Multiple systems can be connected to one PC or laptop. Operation modes are

Rear view

Technical details

Klingenfuss Radio Monitoring and WAVECOM

If you order WAVECOM products from us, we throw in - free of charge! - the latest Klingenfuss Publications at a total value of 350+ EUR.
Not shown is the free Digital Data Decoder Screenshots on USB Stick that gives you more than 10,100 (ten thousand one hundred!) ideas of how to use your WAVECOM decoder.

Click to enlarge!

Klingenfuss Radio Monitoring has been the # 1 user of the world-famous line of WAVECOM decoders from its very creation many many years ago.

Combined Fast Fourier Transformation (FFT) and sonagram analysis of a 10-tone signal. Click to enlarge!

Aircraft Communication and Reporting System (ACARS) decoding on HF: H15 Muhurroq Air, Bahrain Click to enlarge!

Alarm monitor: All data decoded/received from text modes is scanned simultaneously for up to ten different user-defined alarm strings, and different alerts are produced accordingly (with optional audio alerts or user-set .wav audio files). Alarm text files can be automatically saved and forwarded e.g. via Short Message Service (SMS) to your cellphone anywhere in the world. Click to enlarge!

Analysis Modes

  • Autocorrelation
  • Bit analysis
  • Bit length
  • Bit rate
  • Bit stream FSK raw
  • Bit stream MFSK raw
  • Bit stream PSK raw
  • Code statistic
  • Fast Fourier Transformation (FFT) baud rate
  • Fast Fourier Transformation (FFT) real-time oscilloscope
  • Fast Fourier Transformation (FFT) real-time sonagram
  • Fast Fourier Transformation (FFT) real-time sonagram and spectrum
  • Fast Fourier Transformation (FFT) real-time spectrum
  • Fast Fourier Transformation (FFT) real-time waterfall
  • Fast Fourier Transformation (FFT) shift
  • FSK code check
  • F7B analysis
  • IAS baud rate
  • MFSK analysis
  • MIL/STANAG code check
  • Mode
  • PSK bit rate
  • PSK phase plane
  • QAM with eye diagram
  • Raw FSK data
  • SELCAL analysis
  • PSK phase plane analysis

    Click to enlarge!

    Fast Fourier Transformation (FFT)
    real-time waterfall analysis

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    Fast Fourier Transformation (FFT)
    real-time sonagram analysis
    of a CIS-36 MFSK aggregate signal

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    MFSK analysis of a CIS-36 signal

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    Bit length analysis

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    Autocorrelation analysis

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  • AM-Fax
  • BPSK
  • BR6028
  • CW (Morse)
  • DXPSK from 2DPSK to D16PSK
  • DTMF
  • FFSK
  • FSK
  • FSK mark-space
  • F7B 4FSK
  • GFSK
  • MFSK
  • PSK2
  • PSK4
  • PSK8
  • QPSK
  • Software demodulator for IF input
  • 4FSK
  • FAX decoding:
    KYODO Tokyo, Japan
    Service for Japanese fishermen

    Click to enlarge!

    PACTOR-2 decoding:
    Berne Radio, Switzerland
    Message traffic list

    Click to enlarge!


  • AIS
  • ALE (MIL-STD-188-141A)
  • ALE-400
  • ALIS
  • ALIS-2
  • AMSAT-P3-D
  • ARQ-E
  • ARQ-E3
  • ARQ-M2-242
  • ARQ-M2-342
  • ARQ-M4-242
  • ARQ-M4-342
  • ARQ-N
  • ARQ6-90
  • ARQ6-98
  • ASCII (IRA) (ITA5)
  • ATIS Digital Selective Calling
  • AUM-13
  • Baudot (ITA2)
  • BIIS
  • BR6028
  • CCIR-1 CCIR-2 PCCIR Analog and Digital Selective Calling
  • CCIR-7 Analog Selective Calling
  • CCITT Analog Selective Calling
  • CHU
  • CIS-11
  • CIS-12
  • CIS-14
  • CIS-36 MFSK
  • CIS-36-50 MFSK
  • CIS-50-50 MFSK
  • Clover 2
  • Clover 2000
  • CODAN Digital Selective Calling
  • CODAN 9001 (not available in all countries)
  • Coquelet-8
  • Coquelet-13
  • Coquelet-80
  • CTCSS Analog Selective Calling
  • CV-786
  • CW (Morse)
  • DCS Selective Calling
  • DGPS
  • DSC HF
  • DTMF Analog Selective Calling
  • DUP-ARQ-2
  • DUP-FEC-2
  • EEA Analog Selective Calling
  • EFR
  • EIA Analog Selective Calling
  • EURO Analog Selective Calling
  • FEC-A
  • Feldhell
  • FLEX
  • FM-Hell
  • FMS-BOS Digital Selective Calling
  • Golay
  • G-TOR
  • GW-FSK
  • GW-PSK
  • HC-ARQ
  • HFDL
  • ICAO-SELCAL Annex 10
  • INMARSAT A Telex
  • INMARSAT B forward Data Fax Telex Voice
  • INMARSAT C EGC (Enhanced Group Calls)
  • INMARSAT M F forward Data Fax Voice
  • INMARSAT M Mini-M R return Data Fax Voice
  • INMARSAT M voice-implemented (IMBE CODEC)
  • INMARSAT Mini-M F forward Data Fax
  • INMARSAT Mini-M Voice
  • IRA (ITA5) (ASCII)
  • ITA2 (Baudot)
  • ITA5 (IRA) (ASCII)
  • MD-674
  • Meteosat-Weatherfax
  • MFSK-8/16/20
  • MIL-M55529-A
  • MIL-STD-188-110A serial tones
  • MIL-STD-188-110A 16 tones
  • MIL-STD-188-110A 39 tones
  • MIL-STD-188-110B (Appendix B)
  • MIL-STD-188-110B (Appendix C)
  • MIL-STD-188-110B 16 tones
  • MIL-STD-188-141A (ALE)
  • MIL-STD-188-141B
  • MIL-M-55529 NB/WB
  • MOBITEX-1200 MOBITEX-8000
  • MODAT Selective Calling
  • Morse (CW)
  • MPT1327
  • NATEL Analog Selective Calling
  • NMT-450
  • NOAA/GEOSAT-Weatherfax
  • Packet Radio HF
  • Packet Radio UHF/VHF
  • PACTOR-1 1-8
  • PACTOR-2 1-8
  • PACTOR-2-FEC 1-8
  • PACTOR-3
  • Piccolo-6
  • Piccolo-12
  • Press-Fax
  • PSK-AM
  • PSK-10
  • PSK-31
  • PSK-31-FEC
  • PSK-63F
  • PSK-125F
  • PSK-220F
  • Robust Packet Radio
  • SI-ARQ
  • SI-Auto
  • SI-FEC
  • SITOR-Auto
  • SP-14
  • SPREAD-11
  • SPREAD-21
  • SPREAD-51
  • SSTV (all modes: Automatic Martin Robot SC Scottie Wraase)
  • STANAG 4285 with automatic frame format recognition
  • STANAG 4415
  • STANAG 4481 FSK
  • STANAG 4481 PSK
  • STANAG 4529 with automatic frame format recognition
  • STANAG 4539
  • STANAG 5065-FSK
  • STANAG 5066 with parser
  • VDEW Analog Selective Calling
  • VDL-M2 (VHF-ACARS Mode 2)
  • Weatherfax
  • ZVEI 1/2/3/digital DZVEI PDZVEI PZVEI Analog and Digital Selective Calling
  • Aircraft Communication and
    Reporting System (ACARS)
    decoding on VHF:
    Zürich Air, Switzerland,
    to flight AF2347

    Click to enlarge!

    Automatic Link Establishment
    (ALE) decoding:
    JNR United States Navy,
    Roosevelt Roads, Puerto Rico

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    ITA2 decoding and code statistic:
    Jeloeya Radio, Norway

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    STANAG-4285 decoding:
    French Navy Saissac, France

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    MIL/STANAG code check

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    Global Wireless (GW)
    Orthogonal Frequency-Division Multiplexing (OFDM)
    Frequency-Shift Keying (FSK) decoding:
    Ship station transmitting
    NMEA-0183 coded (watch the pirates!)
    automatic GPS position and track data
    to Rogaland Radio, Norway

    Click to enlarge!

    PACTOR-3 decoding:
    Sailmail Radio, Brugge, Belgium

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    DGPS (Differential Global Positioning System) decoding:
    Beacon Iffezheim, Germany
    and the superb GARMIN GPSmap 60CSx

    Click to enlarge!


  • Arabic ITA2 5-bit
  • ARQ1a 7-bit (used in ARQ-E, ARQ-N, FEC-A)
  • ATU-80 Arabic ITA2 5-bit
  • Bauer 10-bit (used in AUTOSPEC, SPREAD)
  • binary (used in MPT1327/1343)
  • Bulgarian IRA (ITA5) (ASCII) 7-bit
  • Cyrillic and third-shift Cyrillic M2 (used in CIS-14, CIS-36 MFSK)
  • Cyrillic and third-shift Cyrillic M2 with 2 identification bits and 4 parity bits (used in CIS-11)
  • Cyrillic Morse
  • Hebrew Morse
  • IRA (ITA5) (ASCII) 7-bit (used in BR6028, GOLAY, Packet Radio, Piccolo-12, POCSAG)
  • IRA (ITA5) (ASCII) 7-bit with block coding (used in DUP-ARQ-2, DUP-FEC-2, G-TOR, PACTOR, Packet Radio)
  • ITA1 5-bit Latin
  • ITA2 5-bit (used in BR6028, Baudot, Piccolo-6)
  • ITA2 5-bit with block coding (used in ALIS, DUP-ARQ, HC-ARQ)
  • ITA2 5 bit Cyrillic Danish/Norwegian Hebrew Latin Swedish Transparent
  • ITA2 with 10 redundancy bits (used in HNG-FEC)
  • ITA3 7-bit (used in ARQ-E3, ARQ-M2, SI-ARQ, SI-FEC)
  • ITA5 7-bit Bulgarian Chinese Danish/Norwegian French German Swedish USA
  • Standard Morse
  • Third-shift Greek ITA2 5-bit
  • Transparent
  • Unicode
  • User-defined alphabets
  • 8-bit binary alphabet (used in CALSEL)
  • 16-bit alphabet (used in RUM-FEC)
  • 16-bit modulo 10 alphabet (used in RUM-FEC)
  • 80S (used in Coquelet-82)
  • 82S (used in Coquelet-82)
  • 401 (used in Coquelet-13)
  • 402 (used in Coquelet-13)
  • 403 (used in Coquelet-8)
  • SITOR decoding: Egyptian Embassy Rome, Italy, to Ministry of Foreign Affairs Cairo, Egypt, using the ATU-Arabic teleprinter alphabet and the superb translation procedure explained in our Radio Data Code Manual. Click to enlarge!

    Separate options are now included!

    Certain software options and versions, such as CODAN and INMARSAT and PACTOR-3, are now included with all WAVECOM products and need no longer to be acquired and licensed separately!

    Signal Classifier Software

    This option is a software module that is fully integrated in the existing hard- and software. The ability to rapidly identify unknown signals has increasingly become an essential requirement in signal analysis. The automation of the signal classification process relieves the operator from manual evaluation, which otherwise requires consierable skills and long-time experience in professional radio monitoring. The combination of a classifier and a decoder thus satisfies the requirement for an automatic system that is able to rapidly and reliably determine the characteristics of radio data transmissions within the signal spectrum being monitored. The results of the classification are shown as a list in a second panel. Full XML control of all classifier settings is now provided as well. The following parameters are provided for each classified signal:

    A FSK/PSK or MFSK code check of the classified signal may be initiated to further determine the signal. After the code check has been completed, the identified code may be started.

    Classification of a PSK8A signal

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    Classification of a F1B signal

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    Classification of a OFDM 45-tones signal

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    Satellite monitoring software

    The W-PCI features a fully tunable 70 MHz IF input for satellite monitoring without external receivers. The pertinent software decodes INMARSAT. To monitor INMARSAT traffic, you need additionally

    INMARSAT-A is the original INMARSAT system, which has been operating since 1982, based on analogue techniques and capable of global two-way telephony, facsimile, data and telex communications. The W61SAT monitors the forward TDM channel. The forward telex traffic channel contains 22 timeslots of 50 Baud telex channels.

    INMARSAT-B is a system based on digital technology, and capable of high quality telephony, facsimile, data and telex services. INMARSAT-M has been introduced in 1993. It is based on digital technology and capable of two-way voice telephony, distress alerting, fax and data services at lower data rates. INMARSAT-Mini-M has been introduced in 1995, it is based on digital technology and capable of two-way voice telephony, alerting, fax and data services. The system operates only in the reduced coverage offered by the spot beams. The W61SAT monitors the control channel, and upon initiation of a new session with a mobile terminal, automatically switches to the assigned traffic channel for monitoring. To limit the volume of monitored traffic, a watch list may be created containing target Mobile Earth Station (MES) IDs. Monitored fax, voice and data sessions are stored in files. A fax viewer is included in the software.

    INMARSAT-C is a digital system based on a low-cost MESs with low power consumption. It provides global two-way store-and-forward messaging, distress alerting, EGC SafetyNETTM and FleetNETTM, data reporting and polling. This is a store-and-forward low-speed message transmission system. Currently it is one of the most reliable and most used systems for today's communication. The W61SAT monitors TDM traffic going to the MES with data output in ASCII, HEX or Baudot, and TDMA traffic on the return channel traffic to the Land Earth Station (LES).

    INMARSAT-M spectrum

    Click to enlarge!

    INMARSAT-Mini-M spectrum

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    INMARSAT Fax reception

    Click to enlarge!

    Bit View Tool

    This option is a offline tool with .NET technology for the analysis of any bit stream e.g. from complex PSK transmissions. You can use e.g. the data stream output from the W-CODE or W-PCI or W61PC.

    The tool is directed at users with experience in statistical and mathematical functions and coding theory. It covers analysis tools, auto calculation, binary modulation, bit manipulation, channel decoding, data unzip, source decoding, CRC and polynomial systems, hexadecimal view, MATLAB custom libraries, and so on. You can e.g. apply, modify and display various alphabets. All steps of the analysis are automatically logged and saved to log files in XML format. The log file may be re-loaded and used by the software to repeat the saved analysis steps. This allows analysis sessions to be documented and stored for later automatic rerun without user intervention. This feature enables the user, to a certain degree, to execute a pre-production decoding in cases where a decoder for a particular new digital data transmission system is not yet available.


    Click to enlarge!

    Text extraction

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    Click to enlarge!

    Graphic bit display

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    Synchronization analysis

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    Raw bits decoding

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    Here we demonstrate real radio monitoring, and "life" decoding of interesting digital data signals with professional equipment such as WAVECOM. Many thanks to Mr. Nils Schiffhauer DK8OK for producing these fascinating videos. Pertinent codes, frequencies, stations, and schedules can be found in our products!

    ALE • CW • PACTOR-2

    CW • ITA2 • DGPS • ITA5 • CHU • GW-FSK • DSC • ALE • ACARS • STANAG 4285




    STANAG 4285


    Please tell us what you need and provide your full postal address plus e-mail and fax. We will airmail and e-mail and fax to you a detailed quotation plus detailed brochures on the WAVECOM W-CODE and W-PCI and W61 product series. For latest prices click here. We ship worldwide by fully insured UPS express airfreight at original WAVECOM prices without additional costs or profit - for a list of professional customers all over the world click here. If your customs office has a problem with "Data decoder" or "Signal analyzer", we can name the decoder a "Digital data interface PC card" or something similar if you ask us to do so, and UPS will settle the customs clearing procedure for you - that's their job and they really know it! If you order WAVECOM products from us, we throw in - free of charge! - the latest Klingenfuss Publications at a total value of 350+ EUR:

    Low Tax

    This is a business and we're talking about money - your money. If you're located in a member country of the European Union, take good care: they will rip you off. For goods imported from outside the EU, you have to pay

    1. The cost of the product
    2. Transport and insurance costs
    3. Customs duty on (A + B)
    4. VAT on (A + B + C)


    1. 10'000 EUR
    2. 350 EUR
    3. Customs duty on 10'350 EUR, e.g. 12 % = 1'242 EUR
    4. VAT on 11'592 EUR, e.g. 22 % = 2'550 EUR

    gives you a total of 14'142 EUR, i.e. 41 percent more than the original cost!

    Because of no duties and low taxes, it is particularly advisable to import goods from countries outside of the EU - such as Switzerland - via Germoney:

    By consequence, the calculation for goods imported via Germany goes like this:

    1. 10'000 EUR
    2. 350 EUR
    3. Customs duty on 10'350 EUR, i.e. 0 % = 0 EUR
    4. VAT on 10'350 EUR, i.e. 19 % = 1'966 EUR

    gives you a total of 12'316 EUR. You save 1'826 EUR!

    For dozens of very recent original screenshots click here. For hundreds of sample screenshots see our guidebook Radiotelex Messages, the brandnew 2015/2016 Guide to Utility Radio Stations, the new 2015 Super Frequency List on CD, and the new Radio Data Code Manual. For thousands of sample screenshots see our brandnew Digital Data Decoder Screenshots on USB Stick!

    Klingenfuss Radio Monitoring:
    the difference between jumping on the bandwagon - and driving it!