Specifications
Decode and analyse signals, develop new decoders

go2DECODE

go2DECODE, offers signal demodulation, recognition, decoding, speech detection, technical signal analysis and advanced decoder development tools. Use this software, if you like to analyse protocols and demodulator's or if you have to implement new protocols into your go2MONITOR solution.

Specifications

System

Parameter Specification
Data acquisition - Digital IF (complex baseband I/Q)
- Sound card
- Digital AF (WAV 8, 16, 32 Bit)
- RAW IF File Format
- Receiver streaming and control
- Others on request
Localisation - English
- German
- Others on request
Documentation - Printed user manual
- PDF Online-Help
Recommended PC hardware - Min. Intel I5 2 Core, 2 MHz, 4 GB RAM
- HDD: min. 500 GB recommended (depends on recordings)
- Screen Resolution: min. 1280 x 1024 pixel
- Sound card for analog input
- Fast Ethernet for digital IF input
OS - Windows 7 / 10 64 bit Englis or German
- Linux on request
Result files - Deocoding results
- TXT-File with decoded text
- XML-File with decoded text and metadata
- Signal recordings
- Speech recordings
- Bitstream *.rec files (bits and quality of each bit)
- Bitstream *.txt files (bits)
Speech detection, demodulation, recording Modulation types:
- AM, FM, USB, LSB, DSB
- Detection: speech yes/no
- Nominal frequency
- Voice Pitch
- Demodulation
- AF Recording
Sonagram Viewer - Standalone application for spectrum/sonagram display
Signal recordings - IF
- AF
- Start / Stop
- Manual by operator or automatic by trigger
Trigger types
- Configurable squelch level
- Signal detected
- Transmission method recognised
- Transmission method unknown
- Speech detected
File formats: WAV / RAW

Analysis

Analysis Items
Displays - Spectrum
- Spectrogram/Sonagram
- Autocorrelation
- Constellation
- Eye pattern
- Time (oscilloscope)
- Analysis (magnitude, frequency and phase)
- Hell
- Bit
Squaring - Squaring: 0, 1, 2, 3
Windowing - Rectangle
- Hanning
- Hamming
- Kaiser
- Flattop
- Blackman
Cursors - Harmonic
- Crosshair
- 2 cursor mode
Center frequency - Adjustable
Operating modes - Online
- Offline

Decocer Development Language (DDL)

Decoder Development Item
Basic functions - Modification of standard decoders
- Definition of new decoders
- Integration of existing decoders
Function library - Pre-processing
- Symbol conversions
- Descrambling procedures
- Channel selections
- Pattern search
- Burst detection
- Forward/backward time jumps
- Deinterleaving
- Check and correction procedures: CRC, Hamming, Viterbi, BCH, Reed-Solomon
- Elementary arithmetic and bit manipulations
- Table handling
- Various output formats, fonts, channels
- Control of demodulation and decoding
- Setting of demodulator parameters
- Selected speech codecs
- Branches and sub-routines
- Call of external dll's
- Special functions on request
Decoder Editor - Automatic command completion
- Content related help
- Syntax highlighting
Decoder Compiler - Generation of binary decoder fi les
- Detailed code check and error messages
Debugger (go2DECODE-P) - Breakpoints
- Single-step mode
- Display of variable contents
- Editing of variable contents
- Display of all input data packages
- Display of internal data buffer and current read position
- Advanced analysis of recognition, demodulation and decoding
- Breakpoints in multiple decoders of one modem list
- Comparison of the decoder behaviour in search phase and decoding phase
- Monitoring of the current demodulator state

SOMO, Signal Generator (go2DECODE-P)

Signal Generator Item
Modulations - ASKn
- PSKn (single and multi channel)
- QAMn (single and multi channel)
- ASKnPSKm (single and multi channel)
- NCPFSKn
- FSKn (single and multi channel)
- MSK (single and multi channel)
- GMSK (single and multi channel)
- F7B
- TFM3
- TFM5
- Morse/CW
- Sine
- Rectangle
- Saw tooth
- Triangle
- AM and FM modulation (from wav files)
- LSB and USB (from wav files)
- Noise
Function - Generation of single and multi channel, continuous and burst
- Primary modulation
- Variable modulation parameters
- Attenuation
- Center frequency
- Baud rate
- Pulse shapes: RC pulse, RC/RRC spectrum, Gauss pulse
- Burst parameters
- 20/40 kHz bandwidth
Coding - Binary
- Baudot
- ASCII
- HC ARQ
- ITA2
- Differential/absolute coding
- Convolutional encoding / Viterbi
- CCITT standards V.17 ... V.33
- Variable bit stream, bit order, parity
- Various scrambling algorithms
Output - Sound card
- wav files
- Streams

Decoders and Demodulators

  1. MIL and PMR decoders may need an End-User-Certificate (depends on the country of the user)
  2. One decoder = one line (to shorten the list). For the full list, download the actual decoderlist
  3. Slow multitone modems are recommended to operate with fixed nominal frequency

Demodulators

Demodulator Name Remarks
AM / A3E  
Analogue Selcall  
ASK 2/4  
ASK2PSK2 (ASK4)  
ASK2PSK8  
ASK4PSK8  
Chirp  
CLOVER 2000  
CLOVER 2500  
CLOVER II  
Coquelet  
DPSK 2, 4, 8, 16 A/B  
F1A  
F6/F7B  
FM / F3E  
FSK 2 matched filter  
FSK 2, 3 auto-shift  
FSK 2, 3, 4 discr.  
LINK-11  
MDPSK 2, 4, 8, 16 A/B  
MFSK  
Morse, CW  
MPSK 2, 4, 8, 16 A/B  
MSK / GMSK  
MT63  
Multchannel FSK2  
MultiModem  
Multitone (MFSK)  
OFDM  
OQPSK  
PACTOR II/III  
PSK 2, 4, 8, 16 A/B  
PSK data aided Fast adaptive equalizer using known training sequences (via DDL)
PSK Soft Decision  
QAM16  
QAMn (16, 32, 36, 64, 128, 144, 256)  
TFM3  
THROB/THROBX  
USB-LSB / J3E  

Decoders

No Decoder, APC 6.2 Alias, Remarks Src Type
1 ACARS VHF   X VUHF
2 AIS   X VUHF
3 Alcatel 801H Alcatel 801H, detection only, X HF
4 ALE 2G MIL-188-141A; MIL-188-141B; ALE-400 X HF
5 ALE 3G MIL-188-141B App. C; STANAG 4538 - MIL
6 ALIS MERLIN; RS-ARQ X HF
7 ALIS 2 detection only X HF
8 APCO-25 P-25 - PMR
9 ARQ6-90 CCIR 518 Variant X HF
10 ARQ6-98 CCIR 518 Variant X HF
11 ARQ-E 4/8 cycle ARQ-1000 duplex X HF
12 ARQ-E3 CCIR 519 Variant; TDM 342 1 Channel X HF
13 ARQ-M2-242 ARQ-28; CCIR 242; CCIR 342; TDM 242 X HF
14 ARQ-M2-342 ARQ-58; TDM 342 X HF
15 ARQ-M4-242 ARQ-28; CCIR 242; CCIR 342-2; TDM 242 X HF
16 ARQ-M4-342 ARQ-58; TDM 342 X HF
17 ARQ-N ARQ-1000 duplex X HF
18 ASCII 7Bit   X HF
19 ASCII 8Bit   X HF
20 ATIS   X VUHF
21 Autocab   X VUHF
22 AUTOSPEC SPREAD 11; SPREAD 21 X HF
23 Baudot async 1.5 stop bit   X HF
24 Baudot sync   X HF
25 Baudot sync 2 stop bit   X HF
26 Baudot universal Arabic, Cyrillic, Hebrew Alphabets X HF
27 BIIS   X VUHF
28 BULG-ASCII IRA-ARQ X HF
29 CHN 4+4   - MIL
30 CHU   X HF
31 CIS 405 3915 CIS 40.5; FROST1 X HF
32 CIS FSK 200/500   X HF
33 CIS-11 TORG 10/11 X HF
34 CIS-12 CIS AT3104; CIS-20; FIRE; MS5 X HF
35 CIS-14 AMOR; AMO 96; TORG 14 X HF
36 CIS-36 CIS 10 11 11; CROWD-36 X HF
37 CIS-36-50 BEE; T-600 X HF
38 CIS-81-81 CIS 81; CIS 81-29; Frost X HF
39 Clansman FSK300   X HF
40 Clover 2000   - HF
41 Clover 2000 Broadcast   - HF
42 Clover 2500   - HF
43 Clover 2500 Broadcast   - HF
44 Clover II   - HF
45 CODAN 3012 16 Channel PSK additional raw hex output, descrambled - HF
46 CODAN 3012 Chirp CODAN 9001 Chirp - HF
47 CODAN 3212 1 Channel PSK only 600 and 1200bps fully supported - HF
48 CODAN 3212 16 Channel PSK Includes CODAN 3012 - HF
49 CODAN Selcal CODAN 8580; CCIR 493-4 - HF
50 Contestia 8/16/32   X HF
51 Coquelet-13 Coquelet-Mk1 X HF
52 Coquelet-8 Coquelet-Mk2 X HF
53 Coquelet-80 Coquelet-8 FEC X HF
54 CV-786   - MIL
55 DGPS   X HF
56 DMR MotoTRBO, for burst emissions - PMR
57 DMR Continuous MotoTRBO, for continuous emissions - PMR
58 dPMR   - PMR
59 DSC-HF GMDSS X HF
60 DSC-VHF GMDSS-VHF X VUHF
61 D-STAR     PMR
62 DUP-ARQ ARTRAC X HF
63 ERMES   X VUHF
64 F7B Morse   X HF
65 F7B Morse/Baudot 2 channel ITA-2 RTTY; Baudot F7B; BF6 Baudot; ITA-2 Twin X HF
66 FEC-A FEC 100, FEC 101 X HF
67 Flex   X VUHF
68 FMS-BOS   X VUHF
69 FSK 400/500 detection only X HF
70 Globe Wireless FSK Globe Wireless Pactor; GW DATAPLEX X HF
71 Globe Wireless OFDM detection only - HF
72 Globe Wireless PSK GW DATAPLEX X HF
73 Golay Pager Golay/GSC X VUHF
74 G-TOR Golay X HF
75 HC-ARQ Haegelin-Cryptos X MIL
76 HFDL ACARS HF X HF
77 HNG-FEC   X HF
78 LINK-11 CLEW STANAG 5511; TADIL A; TADIL B X MIL
79 LINK-11 SLEW STANAG 5511 SLEW - MIL
80 MD-674   - HF
81 MEROD RACAL-ARQ; RAC-ARQ X HF
82 MFSK-16   X HF
83 MFSK-8   X HF
84 MIL-188-110 16 Tone only raw output - MIL
85 MIL-188-110 39 Tone   - MIL
86 MIL-M-55529A MD-522 - MIL
87 Mobitex 1200 Mobitex 80 X VUHF
88 Mobitex 8000 Mobitex 400 X VUHF
89 Morse CW-Morse X HF
90 MPT1327 1200Bd MSK   X PMR
91 MT63   x HF
92 NMT450   X VUHF
93 NUM 13 SP 14 X HF
94 NXDN 2400/4800Bd IDAS; NEXEDGE - PMR
95 Olivia 8-16-32 X HF
96 Packet   X HF
97 Packet 600/1200   X VUHF
98 Packet 2400/4800/9600   X VUHF
99 PACTOR I   X HF
100 PACTOR I FEC   X HF
101 PACTOR I/II/III Includes all PACTOR modes I/II/III - HF
102 PACTOR II   - HF
103 PACTOR II FEC   - HF
104 PACTOR III   - HF
105 PACTOR IV detection only, ask for decoding - HF
106 Panther-H Sync detection synchronisation bursts only   MIL
107 Piccolo MK12 Piccolo 12 X HF
108 Piccolo MK6 Piccolo 6 X HF
109 POCSAG 512/1200/2400 CityRuf X VUHF
110 Pol-ARQ CCIR 518 Variant X HF
111 PSK10   X HF
112 PSK125/250 variant of PSK31 with higher baud rate X HF
113 PSK31   X HF
114 PSK31-FEC   X HF
115 PSK63 variant of PSK31 with higher baud rate X HF
116 PSK63/125/210-FEC variant of PSK31 with FEC X HF
117 PSK-AM 10/31/50   X HF
118 QPSK31/63/125/250/500   X HF
119 RUM-FEC ROU-FEC; Saud-FEC X HF
120 SELCAL CCIR-1 SELCAL PCCIR, only for nominal frequency mode X VUHF
121 SELCAL CCIR-2 SELCAL CCIR-7, only for nominal frequency mode X VUHF
122 SELCAL CCITT only for nominal frequency mode X VUHF
123 SELCAL DTMF sub for baseband demodulation X VUHF
124 SELCAL EEA MPT1316, only for nominal frequency mode X VUHF
125 SELCAL EIA only for nominal frequency mode X VUHF
126 SELCAL EURO only for nominal frequency mode X VUHF
127 SELCAL EURO5 SELCAL EURO, only for nominal frequency mode X VUHF
128 SELCAL MODAT only for nominal frequency mode X VUHF
129 SELCAL NATEL only for nominal frequency mode X VUHF
130 SELCAL VDEW only for nominal frequency mode X VUHF
131 SELCAL ZVEI SELCAL DZVEI; PDZVEI; PZVEI;ZVEI-1; ZVEI-2; ZVEI-3 X VUHF
132 SI-ARQ ARQ-S X HF
133 SI-FEC FEC-S X HF
134 SITOR-A SITOR-ARQ; AMTOR; CCIR 476 A X HF
135 SITOR-B SITOR FEC; CCIR 476 B; TOR dirty X HF
136 SP14 NUM 13 X HF
137 SPREAD 51   X HF
138 STANAG 4197 audio codec not part of installation - MIL
139 STANAG 4285 Terminal Mode: ASCII8, Baudot, STANAG 5066, HEX - MIL
140 STANAG 4415 MIL-188-110A/B ser. (partly), 75bps - MIL
141 STANAG 4481 (FSK)   - MIL
142 STANAG 4481 (PSK)   - MIL
143 STANAG 4529 Terminal Mode: ASCII8 & Baudot, HEX - MIL
144 STANAG 4539 MIL-188-110A/B ser. (partly), 150-4800 Bit/s - MIL
145 STANAG 4539 HDR MIL-188-110B App.C (partly), 3200 - 4800 Bit/s - MIL
146 STANAG 5065 (also Part of MIL188-110A/B) - MIL
147 SWED-ARQ ARQ-SWE; CCIR 518 Variant X HF
148 Tetra   - PMR
149 Tetra DMO   - PMR
150 Tetra Uplink   - PMR
151 Tetrapol detection only - VUHF
152 Thales System 3000 Skymaster selcal detection only   MIL
153 THROB1/2/4   X HF
154 THROBX1/2/4   X HF
155 Twinplex   X HF
156 VDL 2   X VUHF
157 VDL 3   X VUHF
158 Visel FEC12; YUG-MIL X HF
159 Voice A3E Air Traffic AM X VUHF
160 Voice A3E/J3E   X HF
161 Voice F3E - SELCAL CTCSS MPT1306, FM X VUHF
162 Voice F3E - SELCAL DTMF SELCAL DTMF; FM X VUHF
163 Voice J3E - USB - SELCAL ICAO Annex-10 X HF
164 Voice J3E-LSB   X HF
165 X06-Mazielka   X HF

Receiver List

Brand Receiver max Bw
MHz
Panorama Scan Comments
Airspy Airspy 8     ExtIO (experimental)
CommsAudit CA78XX       ExtIO, ask
CommsAudit CA79XX       VITA-49, ask
ExtIO   Max. receiver bandwidth     Experimental support
GEW gRX-LAN 1     ExtIO
GEW PxGF       ask
IZT 3XXX 20 x x Up to 3 channels + spectrum
IZT 40XX 1     SignalSuite, 1 channel only
Microtelecom PERSEUS 0.8     Limited USB3 compatiblity
NARDA IDA2 0.32      
NARDA NRA-3000 0.32      
NARDA NRA-6000 0.32      
National Instruments ETTUS USRP       EXtIO
National Instruments N200       ExtIO
National Instruments Others       ask
NOXON RTL2832U 3.2     ExtIO
PLATH DBT 5400 + VDC       ask
PLATH SIR2110 20      
PLATH SIR5110 Full HF      
PLATH SIR5115 Full HF      
RFSPACE SDR14 0.19      
RFSPACE SDRIQ        
Rohde & Schwarz EB200       ask
Rohde & Schwarz EM100 0.5 x x  
Rohde & Schwarz EM510       ask
Rohde & Schwarz EM550        
Rohde & Schwarz ESMD       ask
Rohde & Schwarz PR100 0.5 x x  
SDRplay RSP1 6.5     ExtIO
SDRplay RSP2 6.5     ExtIO
thinkRF WSA500-427 0.75     VITA49
VITA-49         ask
WiNRADiO WR-G31DDC 0.8     ExtIO
WiNRADiO WR-G33DDC 4 x   Up to 2 channels + spectrum
WiNRADiO WR-G39DDC 4 x   Up to 2 channels + spectrum
x Others         on request
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