Specifications
Radio Monitoring, the easy way. The new prime decoder!

go2MONITOR

go2MONITOR, an advanced concept for HF-VHF-UHF data protocol decoding. A smart solution including SDR control, recording, classification and decoding. Manual processing of relevant, intercepted communication is too expensive, too slow, insecure and incomplete. In this situation an automatic, flexible and expandable approach must be used at reasonable size and cost.

Specifications

System

Feature Remarks
Data acquisition Streaming: Digital IF (complex baseband I/Q), bandwith up to 1 MHz, optional up to 20 MHz per wideband input, TCP/IP, PROCITEC/PLATH
Streaming: VITA49 (on request)
Streaming: PXGF (on request)
Files: Format RAW IF
Files: Digital IF (complex baseband I/Q 32bit), Bandwidth <= 1 MHz
Files: Digital AF (complex WAV 8, 16, 32 Bit)
Files: Standard wav files
Files: Perseus and WiNRADiO recordings with correct frequency display
Others on request
Data output Visual output using XLST
Continuous saved in files and SQL data base
Protocol detection and production down to the content (Text, audio, binaries)
Timestamps for each XML meassage
rec files for go2ANALYSE
IQ files for later analysis
Classifier 1 MHz bandwidth
Manual, snapshot (10, 20 etc. sec) or continous (needs Option AMT)
Optional: HF: n*2.4 MHz, VUHF: n*20 MHz
Demodulators With automatic baud rate synchronization (Less problems with playback of files recorded on other inaccurate devices)
Decoders 1, 2, 4 or 8 channels or >32
Automatic change of decoders if signals change in "Recognition + Decoding" mode
Setup of of decoders lists for automatic decoding
No loss of data during analyzing and protocol changes
Programmable DDC bandwidth
Proprietary Decoder Description Language (DDL)
Buffering for loosless decoding
GUI Simple and intuitive to operate user interface
Supports multiple monitors
Drag-and-drop of frequencies, classifier results, stations
ResultViewer Display of:
Decoder output, demodulated audio files (CW, TETRA etc.), text output (BAUDOT, HFDL, etc.), binary files
Recognized modems (protocols)
Wide-/Narrowband classification results
Recorded wide-/narrowband IF-signalsAdvanced filter, Result detail and Time/frequency filter are implemented as docking/floating windows and can be freely positioned
ResultView table Display
ResultView graphic Display
Filter data using SQL or scrpting
Recording Wideband (up to 1 MHz)
Narrowband DDC IQ channel
Optional: Wideband n x 20 MHz
Signal Generator For standard test signals., requires go2DECODE-Pro
Alphabets Can be added to the decoder, free configurable
Requires go2DECODE
Own decoders Add your own decoders using go2DECODE and our "Decoder Development Language"
Third party decoder Interface to the DDC channel output
Interface to the audio output (VAC)
Option: AMT Automatic Monitoring and Tasking
- Full automatic job based monitoring (decoding, recording, classification)
- Easy overview over decoded, classified or recorded signals
- Powerful filtering functions
- Continuous classification
- Jobs based on time, frequencies (ranges), RX location, classification, modulation, decoders, modulation parameters
Option: NRC Narrowband Receiver Control
- Frequency independent production on all 1/2/4 or 8 production channels
- Narrowband receivers offer a better sensitivity compared to wideband receivers
- Narrowband receivers consume less resources, as no DDC is required
- Monitor signals in different frequency ranges
- Possibility to add "virtual" receivers using ExtIO, which can connect to third parties DDC's or streams
Option: WCL Wideband Input, Classification 20 MHz
- Continuous Mode
- Snapshot Mode
- Wideband waterfall display 2.4 MHz (HF) / 20 MHz (VUHF)
- Wideband classification 2.4 MHz (HF) / 20 MHz (VUHF)
Option: WMPC Wideband Multi Production Channels
- Extend the number of software DDC channels to up to 200 channels ( typical, 32, dependig on lizense and computing power, inside up to 20 MHz bandwidth)
- Easy overview over decoded, classified or recorded signals
Option: WRC Wideband Recording, 20 MHz
- Loop recording
- Sequential recording
- Recording scheduler
- Same File format as PROCITEC WiRAS (for advanced recording analysis)
- Delivered as installed package with server-computer and receiver
Training Very short training period
Same technology as in large decoding systems
Remote Control ICD (Interface control Document)
API for C++
API for Java
Training on request
Documentation PDF user manual, PDF Online-Help
ISO 9001:2008 Company is certified (not only hardware)
Localisation English
German
Others on request
License USB-Dongel
Bound to hardware
Licesnse sharing
PC hardware Min. Intel I5 4 Core, 2 GHz, 4 GB RAM for 4 channels version
Min. Intel I7 8 Core, 3 GHz, 8 GB RAM for 8 channels version
HDD: min. 500 GB recommended (depends on recordings)
Display min. 1920 x 1080 pixel or two displays 1280 x 1024 pixels
(multiple monitors recommended)
Fast Ethernet for digital IF input
OS Windows 7 /10 64 bit Englisch or German
Linux on request

Analysis

Many parameters can be analyzed using the classifier, if more details are needed, then go2DECODE can be used as an extension of go2MONITOR.

Classifier Modulations

Modulation   recognition quality (Eb/No),
detection rate > 90%, false alarms < 1%
max. signal bandwidth HF 20 kHz
V/UHF 50 kHz
 
Analog modulation types USB, LSB, AM, FM  
Carrier unmodulated tone min. signal to noise ratio > 6dB
FSK2 HF: 25-4800 Bd
V/UHF: 1.2-25 kBd
m = 0.5-10
11 - 15 dB
FSK4 HF: 25-4800 Bd
V/UHF: 1.2-25 kBd
11 - 15 dB
MORSE 30 - 250 CPM  
MSK HF: 25-4800 Bd
V/UHF: 1.2-25 kBd
 
Multichannel (D)PSK 2, 4 A/B max. 10kHz signal bandwidth
50 - 300 Hz channel spacing
2 - 64 channels
 
Multitone FSKn 3-200 ms (5-330 Bd)
5-64 tones
11 - 15 dB
OTH Radar    
OFDM    
(D)PSK8 A/B HF: 25-4800 Bd
V/UHF: 1.2-25 kBd
HF: 8 - 12 dB, A/B Decision: 10 - 14 dB
V/UHF: 10 - 14 dB, A/B Decision: 12/14 dB
(D)PSK4 A/B HF: 25-4800 Bd
V/UHF: 1.2-25 kBd
8 - 12 dB, A/B Decision: 10 - 12 dB
(D)PSK2 A/B HF: 25-4800 Bd
V/UHF: 1.2-25 kBd
7 - 10 dB, A/B Decision: 8 - 10 dB
(D)PSK 16 A HF: 300 - 4800 Bd
VUHF: 300 - 4800 Bd
 

Classifier Output

Parameter Description OFDM Car. FSK MFSK CW PSK Voic Unkn
Modulation The type of modulation and its probability x x x x x x x x
Pitch TBD             x  
Type Type of voice like LSB, USB, AM , FM             x  
Symbol rate The symbol rate in Bd x   x x   x    
Order The number of phase shifts           x    
Version Version of PSK A or B           x    
CPM Transmitted character per minute         x      
Dash Dot Ratio The ratio between the length of dashes and dots         x      
Shift The measured shift x   x          
Tone distance The measured distance between tones in Hz       x        
Frequency The receiver center frequency of the signal x x x x x x x  
Bandwidth The overall bandwidth of the signal x x x x x x x x
SNR The signal to noise ratio in dB x x x x x x x x
Signal time Time of measurement x x x x x x x x

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  
ASK2 (OOK)  
ASK2PSK2 (ASK4)  
ASK2PSK8  
ASK4PK8  
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  

HF Decoders

Decoder, APC V6.2 Alias, Remarks Src
Alcatel 801H Alcatel 801H, detection only, X
ALE 2G MIL-188-141A; MIL-188-141B; ALE-400 X
ALIS MERLIN; RS-ARQ X
ALIS 2 detection only X
ARQ6-90 CCIR 518 Variant X
ARQ6-98 CCIR 518 Variant X
ARQ-E 4/8 cycle ARQ-1000 duplex X
ARQ-E3 CCIR 519 Variant; TDM 342 1 Channel X
ARQ-M2-242 ARQ-28; CCIR 242; CCIR 342; TDM 242 X
ARQ-M2-342 ARQ-58; TDM 342 X
ARQ-M4-242 ARQ-28; CCIR 242; CCIR 342-2; TDM 242 X
ARQ-M4-342 ARQ-58; TDM 342 X
ARQ-N ARQ-1000 duplex X
ASCII 7Bit   X
ASCII 8Bit   X
AUTOSPEC SPREAD 11; SPREAD 21 X
Baudot async 1.5 stop bit   X
Baudot sync   X
Baudot sync 2 stop bit   X
Baudot universal Arabic, Cyrillic, Hebrew Alphabets X
BULG-ASCII IRA-ARQ X
CHU   X
CIS 405 3915 CIS 40.5; FROST1 X
CIS FSK 200/500   X
CIS-11 TORG 10/11 X
CIS-12 CIS AT3104; CIS-20; FIRE; MS5 X
CIS-14 AMOR; AMO 96; TORG 14 X
CIS-36 CIS 10 11 11; CROWD-36 X
CIS-36-50 BEE; T-600 X
CIS-81-81 CIS 81; CIS 81-29; Frost X
Clansman FSK300   X
Clover 2000   -
Clover 2000 Broadcast   -
Clover 2500   -
Clover 2500 Broadcast   -
Clover II   -
CODAN 3012 16 Channel PSK additional raw hex output, descrambled -
CODAN 3012 Chirp CODAN 9001 Chirp -
CODAN 3212 1 Channel PSK only 600 and 1200bps fully supported -
CODAN 3212 16 Channel PSK Includes CODAN 3012 -
CODAN Selcal CODAN 8580; CCIR 493-4 -
Contestia 8/16/32   X
Coquelet-13 Coquelet-Mk1 X
Coquelet-8 Coquelet-Mk2 X
Coquelet-80 Coquelet-8 FEC X
DGPS   X
DSC-HF GMDSS X
DUP-ARQ ARTRAC X
F7B Morse   X
F7B Morse/Baudot 2 channel ITA-2 RTTY; Baudot F7B; BF6 Baudot; ITA-2 Twin X
FEC-A FEC 100, FEC 101 X
FSK 400/500 detection only X
Globe Wireless FSK Globe Wireless Pactor; GW DATAPLEX X
Globe Wireless OFDM detection only -
Globe Wireless PSK GW DATAPLEX X
G-TOR Golay X
HFDL ACARS HF X
HNG-FEC   X
MD-674   -
MEROD RACAL-ARQ; RAC-ARQ X
MFSK-16   X
MFSK-8   X
Morse CW-Morse X
MT63   x
NUM 13 SP 14 X
Olivia 8-16-32 X
Packet   X
PACTOR I   X
PACTOR I FEC   X
PACTOR I/II/III Includes all PACTOR modes I/II/III -
PACTOR II   -
PACTOR II FEC   -
PACTOR III   -
PACTOR IV detection only, ask for decoding -
Piccolo MK12 Piccolo 12 X
Piccolo MK6 Piccolo 6 X
Pol-ARQ CCIR 518 Variant X
PSK10   X
PSK125/250 variant of PSK31 with higher baud rate X
PSK31   X
PSK31-FEC   X
PSK63 variant of PSK31 with higher baud rate X
PSK63/125/210-FEC variant of PSK31 with FEC X
PSK-AM 10/31/50   X
QPSK31/63/125/250/500   X
RUM-FEC ROU-FEC; Saud-FEC X
SI-ARQ ARQ-S X
SI-FEC FEC-S X
SITOR-A SITOR-ARQ; AMTOR; CCIR 476 A X
SITOR-B SITOR FEC; CCIR 476 B; TOR dirty X
SP14 NUM 13 X
SPREAD 51   X
SWED-ARQ ARQ-SWE; CCIR 518 Variant X
THROB1/2/4   X
THROBX1/2/4   X
Twinplex   X
Visel FEC12; YUG-MIL X
Voice A3E/J3E   X
Voice J3E - USB - SELCAL ICAO Annex-10 X
Voice J3E-LSB   X
X06-Mazielka   X

VHF-UHF Decoders

Decoder, APC 6.2 Alias, Remarks Src
ACARS VHF   X
AIS   X
ATIS   X
Autocab   X
BIIS   X
DSC-VHF GMDSS-VHF X
ERMES   X
Flex   X
FMS-BOS   X
Golay Pager Golay/GSC X
Mobitex 1200 Mobitex 80 X
Mobitex 8000 Mobitex 400 X
NMT450   X
Packet 600/1200   X
Packet 2400/4800/9600   X
POCSAG 512/1200/2400 CityRuf X
SELCAL CCIR-1 SELCAL PCCIR, only for nominal frequency mode X
SELCAL CCIR-2 SELCAL CCIR-7, only for nominal frequency mode X
SELCAL CCITT only for nominal frequency mode X
SELCAL DTMF sub for baseband demodulation X
SELCAL EEA MPT1316, only for nominal frequency mode X
SELCAL EIA only for nominal frequency mode X
SELCAL EURO only for nominal frequency mode X
SELCAL EURO5 SELCAL EURO, only for nominal frequency mode X
SELCAL MODAT only for nominal frequency mode X
SELCAL NATEL only for nominal frequency mode X
SELCAL VDEW only for nominal frequency mode X
SELCAL ZVEI SELCAL DZVEI; PDZVEI; PZVEI;ZVEI-1; ZVEI-2; ZVEI-3 X
Tetrapol detection only -
VDL 2   X
VDL 3   X
Voice A3E Air Traffic AM X
Voice F3E - SELCAL CTCSS MPT1306, FM X
Voice F3E - SELCAL DTMF SELCAL DTMF; FM X

PMR Decoders

Decoder, APC 6.2 Alias, Remarks Src
APCO-25 P-25 -
DMR MotoTRBO, for burst emissions -
DMR Continuous MotoTRBO, for continuous emissions -
dPMR   -
D-STAR    
MPT1327 1200Bd MSK   X
NXDN 2400/4800Bd IDAS; NEXEDGE -
Tetra   -
Tetra DMO   -
Tetra Uplink   -

MIL Decoders

Decoder, APC 6.2 Alias, Remarks Src
ALE 3G MIL-188-141B App. C; STANAG 4538 -
CHN 4+4   -
CV-786   -
HC-ARQ Haegelin-Cryptos X
LINK-11 CLEW STANAG 5511; TADIL A; TADIL B X
LINK-11 SLEW STANAG 5511 SLEW -
MIL-188-110 16 Tone only raw output -
MIL-188-110 39 Tone   -
MIL-M-55529A MD-522 -
Panther-H Sync detection synchronisation bursts only  
STANAG 4197 audio codec not part of installation -
STANAG 4285 Terminal Mode: ASCII8, Baudot, STANAG 5066, HEX -
STANAG 4415 MIL-188-110A/B ser. (partly), 75bps -
STANAG 4481 (FSK)   -
STANAG 4481 (PSK)   -
STANAG 4529 Terminal Mode: ASCII8 & Baudot, HEX -
STANAG 4539 MIL-188-110A/B ser. (partly), 150-4800 Bit/s -
STANAG 4539 HDR MIL-188-110B App.C (partly), 3200 - 4800 Bit/s -
STANAG 5065 (also Part of MIL188-110A/B) -
Thales System 3000 Skymaster selcal detection only  

Obsolete Decoders (no longer active)

Decoder End of Live
Inmarsat-M (Land, Marine, Aero) 3014-12-30
Inmarsat D+ (Land, Marine) 3014-12-30
Inmarsat mini M (Land) 3015-06-30
Inmarsat GAN (Land) 3015-06-30
Inmarsat B (Land, Marine) 3016-12-30
Inmarsat mini M (Marine) 3016-12-30
GW-OFDM 2014

Receivers

Brand Receiver Comments
Airspy Airspy ExtIO (experimental)
CommsAudit CA78XX ExtIO, ask
CommsAudit CA79XX VITA-49, ask
VITA-49   ask
GEW gRX-LAN ExtIO
GEW PxGF  
IZT 32XX  
IZT 33X  
IZT 40XX  
Microtelecom PERSEUS  
NARDA IDA2  
NARDA NRA-2500  
NARDA NRA-3000  
NARDA NRA-6000  
National Instruments ETTUS USRP EXtIO
National Instruments N200 ExtIO
National Instruments Others ask
NOXON RTL2832U ExtIO
PLATH DBT 5400 + VDC ask
PLATH SIR5110 ExtIO, 1CH
PLATH SIR5115 ExtIO, 1CH
RFSPACE SDR14  
RFSPACE SDRIQ  
Rohde & Schwarz EB200 ask
Rohde & Schwarz EM100  
Rohde & Schwarz EM510 ask
Rohde & Schwarz EM550  
Rohde & Schwarz ESMD ask
Rohde & Schwarz PR100  
SDRplay SDRplay ExtIO
WiNRADiO WR-G31DDC ExtIO
WiNRADiO WR-G33DDC ExtIO
WiNRADiO WR-G39DDC ExtIO
x Others   on request
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