go2MONITOR Specification

General

Classifier/Recognition:

  • The minimum signal length for the wideband modulation classifier is 100 ms.
  • Using the decoder (Recognition & Decoding) , the software is able to detect and process signals with a signal length of at least 1 ms.

Decoders and Demodulators:

  • MIL and PMR decoders may need an End-User-Certificate (depends on the country of the user)
  • One decoder = one line (to shorten the list). For the full list, download the actual decoderlist
  • Slow multi tone modems are recommended to operate with fixed nominal frequency
  • Decoder source code is only part of go2DECODE delivery (as go2MONITOR has no DDL compiler)

Receivers:

  • The list can be extended on customer requests.
  • It is possible to connect multiple wide band an narrow band receivers to the software.

System

Feature Remarks
Data acquisition Multiple signal inputs simultaneously possible, depending on configuration
2 wideband inputs in parallel. Other configurations on request
Data acquisition receiver Frequency, Bandwidth, AGC, ATT controls etc. Digital IF (complex baseband I/Q), bandwidth up to 20 MHz (1 MHz in standard version)
Data acquisition streaming Digital IF (complex I/Q), bandwidth up to 20 MHz coherent(1 MHz in basic version), generic PROCITEC/PLATH format
VITA 49
PXGF
Data acquisition file Digital IF (complex baseband I/Q 32bit), Bandwidth up to 1 MHz (standard) or up to 20 MHz (with option WCL)
Playback of standard wav files, AF/IF ( WAV 8, 16, 32 Bit)
Playback of TCI Blackbird CAP, Perseus,WiNRADiO, SDR#, SDR-Console recordings (correct frequency and time display, if availble)
Processing faster than real time
Others on request
Audio Input DANA on request
Data output Visual decoder result output, configurable using XSLT
Continuous saved in files and Postgres SQL data base
Protocol detection and production down to the content (text, audio, binaries)
Timestamps for each XML meassage
Symbols are recordid in rec files for go2ANALYSE
IQ files for later analysis
Export functions
Classifier 1 MHz bandwidth standard, (up to 2.4 on HF and 5, 10 or 20 MHz VHF/UHF/SHF with option WCL
Manually triggered or repetitive snapshots (at 10, 20, . . . sec intervals)
Continous mode with Option AMT
Note:
- 80 MHz VHF/UHF/SHF -> a 4 x 20 MHz setup
- 30 MHz HF -> 4 x 20 MHz set
Demodulators Universal and specialized demodulators with AGC and AFC
Automatic synchronization of the baud rate (no problems if files are recorded on inaccurate devices)
Recording of bitstreams for go2ANALYSE
Decoders/Channels 1, 2, 4 , 8 or or more in steps of 32 (with options WMPC)
Automatic change of decoder if signal changes in "Recognition + Decoding" mode
Custom defined decoder lists for automatic decoding
Programmable DDC bandwidth
Buffering for lossless decoding (No loss of data during analyzing and protocol changes)
Proprietary Decoder Description Language (DDL)
Python language based Decoder Description Language (pyDDL)
Custom defined decoder (requires go2DECODE)
GUI Simple and intuitive to operate user interface
Supports multiple monitors
Supports simultaneous multile receivers and mutliple narrowband channels
Drag-and-drop of frequencies, classifier results, stations
Receiver control (Wideband, Narrowband, Multiple Wideband)
Panorama display, Spectrum (FFT), Spectrogram
Decoder/Channel windows for manual control
Classifier display
Frequencies/Blocked Frequenceies window
Ressources display
Bulk file processing window
Scripting editor
Mission statistic display
ResultViewer
ResultViewer Display of decoder output, demodulated audio files (CW, TETRA etc.), text output (BAUDOT, HFDL, etc.), binary files
Audio demodulation and playback
Display of recognized modems (protocols)
Display of wide-/narrow band classification results
Display of recorded wide-/narrowband IF-signals
Advanced filter on results details, timem frequency, position, decoders etc.
Display in table or graphic view (time vs. frequency)
Data filtering using GUI, SQL or scripting
Recording Up to 1 MHz. Up to 20 MHz with option WCL and WBR
Narrowband DDC IQ channel up to 300 kHz
Bitstream
Signal Generator SOMO, for standard test signals., requires go2DECODE-P
Alphabets Can be added to the decoder, configurable (requires go2DECODE)
Own decoders Add your own decoders using go2DECODE and our "Decoder Development Language"
Third party decoder Interface to the DDC channel stream
Interface to the audio output (VAC)
Post Processing
Metadata extraction		 Post-processing of the data output withPYTHON software moduls (extraction of callsigns, sender ID, recipient ID, position, meta data, etc.)
Expandable by user
Option: AMT Automatic Monitoring and Tasking
Full automatic mission based monitoring (decoding, recording, classification)
Mission and tasks based on time, frequencies (ranges), RX location, classification, modulation, decoders, modulation parameters
Overview over decoded, classified or recorded signals
Powerful filtering functions
Continuous classification
Live view in ResultViewer (continuous update) provides a fast overview over decoded, recorded and classified signals
Option: NRC Narrowband Receiver Control
Frequency independent production on 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 5 , 10 or 20 MHz Wideband Input and Classification
- VHF/UHF/SHF: 5 MHz, HF: 1 MHz
- VHF/UHF/SHF: 10 MHz, HF: 1 MHz
- VHF/UHF/SHF: 20 MHz, HF: 2.4 MHz
Continuous mode (with option AMT)
Snapshot mode
Wideband spectrogram display
Normally delivered as a package consisting of receiver, computer and software
Option: WMPC 16 or 32 Wideband Multi Production Channels
Extend the number of software DDC channels to up to a few hundreds (typical in steps of 16 or 32)
All channels with demodulation, decoder, narrowband classifier and narrowband recording
Normally delivered as a package consisting of receiver, computer and software
Option: WBR 5, 10 or 20 Wideband Recording
Lossless recording of up to 5, 10 or 20 MHz digital IF IQ data in standard WAV files
Simultaneous storage of spectrum data for fast preview
Replay and signal extraction
Recording scheduler (with option ATM)
Normally delivered as a package consisting og receiver, computer and software
Option: NCL Narrowband Classifier
Additional automatic narrowband classifiers with command line control and result interface
Mutiple narrowband classifier (number depends on license) classifies the signals in a recording
The processing is performed faster than real-time
Useful for backend integration
Option: HDU Hopper Detection Unit
- VHF/UHF: Detection and recording of hopper signals in a 20 MHz range (Option WCL-20 and WBR-20 are required)
- HF: 2.4 MHz frequency range
Training Very short training period
Same technology (decoders) as in large, top COMIT systems
Remote Control ICD (Interface control Document)
API for C++ and Java
Introduction workshop
Documentation PDF user manual, PDF online help
ISO 9001:2015 Company is certified (not only hardware)
Localisation English or German, others on request
License USB-Dongle (CodeMeter)
License sharing on request
The AMBE+2 TM voice coding technology included in this product is protected by intellectual property rights, including patent rights, copyrights and trade secrets of Digital Voice Systems, Inc. This voice coding technology is licensed exclusively for use within this licensed product. The user of this technology is strictly prohibited from attempting to extract, remove, decompile, reverse engineer, or disassemble the object code, or in any other way convert the object code into a human-readable form.
US Patent Nos. #8,595,002, #8,359,197, #8,315,860, #8,200,497, #7,970,606, #6,912,495 B2, #6,199,037
PC hardware Min. Intel I5 4 Core, 2 GHz, 8 GB RAM for 4 channels version
Min. Intel I7 8 Core, 2 GHz, 16 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 monitrs recommended
Fast Ethernet for digital IF input
OS Windows 7 SP1 (with Microsoft Windows patch KB2999226) 64 bit, de/en
Windows 10, 64 bit de/en
Linux (CentOS/Redhat 7.5) 64 bit

Classifier

Signal Analysis

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

Classified Modulations

Modulation   HF VHF/UHF recognition quality (Eb/No),
detection rate > 90%, false alarms < 1%
max. signal bandwidth   50 kHz 50 - 300 kHz (depending on modulation type)  
Signal energy detection, min. SNR   6 dB 6 dB  
min. signal length   100 ms
(using recognition & decoding: 1ms)		 100 ms
(using recognition & decoding: 1ms)		  
Measurement interval   4 sec 4 sec  
         
(D)PSK 2 A/B   31.25 - 4800 Bd 1.2 - 125 kBd 7 - 10 dB
A/B Decision: 8 - 15 dB
(D)PSK 4 A/B   31.25 - 4800 Bd 1.2 - 125 kBd 8 - 12 dB
A/B Decision: 10 - 15 dB
(D)PSK 8 A/B   31.25 - 4800 Bd 1.2 - 125 kBd HF: 8 - 12 dB
A/B Decision: 10 - 15 dB
VHF/UHF: 10 - 14 dB,
A/B Decision: 12 - 15 dB
Analog modulation types   J3E USB
J3E LSB
A3E AM
DSB-SC (optional)		 J3E USB
J3E LSB
A3E AM
F3E NFM/WFM
DSB-SC (optional)		  
ASK2/4     1.2 - 25 kBd
Signal frequency > 300 MHz		 20 dB
FSK2 m = 1 - 10 25 - 4800 Bd 1.2 - 25 kBd 11 - 15 dB
FSK2 m = 0.75 - 1.5   25 - 75 kBd > 25 dB
FSK4   25 - 4800 Bd 1.2 - 25 kBd 11 - 15 dB
GMSK m = 0.5 300 - 4800 Bd 1.2 - 125 kBd 14 - 16 dB
MC(D)PSK 2, 4 A/B < 10 kHz signal bw
2 - 64 ch		 50 - 300 Hz ch spacing 50 - 300 Hz ch spacing 13 - 15 dB
MCFSK2 m >= 1
2 - 64 ch		 40 - 250 Bd
120 - 1000 Hz ch spacing		 40 - 250 Bd
120 - 1000 Hz ch spacing		 17 dB
MORSE   30 - 250 CPM 30 - 250 CPM  
MSK m = 0.5 100 - 4800 Bd 1.2 - 125 kBd 14 - 16 dB
Multitone FSKn 5 - 64 tones
(shift >sr)		 3 - 200 ms (5 - 330 Bd) 3 - 200 ms (5 - 330 Bd) 14 - 16 dB
OFDM 25 - 512 ch 25 - 200 Bd
30 - 250 Hz ch spacing		 25 - 200 Bd
30 - 250 Hz ch spacing		 14 - 18 dB
OTH Radar   detection only   FM-CW variants only
PSK16   300 - 4800 Bd 1.2 - 125 kBd 14 - 16 dB
QAM Order: 16, 32, 64 1600 - 4800 Bd 1.6 - 25 kBd 22 dB
WFM
(FM Broadcast only)		 65 MHz - 108 MHz   50 kHz - 300 kHz  

Classifier Output

Parameter Description OF
DM		 Car FSK MFSK MSK CW PSK MC
PSK		 QAM ASK MC
FSK		 Voic FM
BC		 Unkn
Modulation The type of modulation and its probability x x x x x 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   x x x x x      
Order Modulation order, number of symbol states             x x   x        
Version Version of PSK A or B             x 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 x           x      
Channel
spacing		 The measured distance between tones in Hz x     x       x     x      
Frequency The receiver center frequency of the signal x x x x x x x x x x x x x *
Bandwidth The overall bandwidth of the signal x x x x x x x x x x x x x x
SNR The signal to noise ratio in dB x x x x x x x x x x x x x x
Signal time Time of measurement x x x x x x x x x x x x x x
Number of tones       x x                    
Number of channels                 x     x      

Classified Protocols

HF/VUHF PMR-Option MIL-Option
ACARS-VHF APCO 25 Phase 2 Downlink ALE-3G
CODAN 3012 16 Channel PSK APCO-25 CIS-112
CODAN 3212 16 Channel PSK DMR CIS-128
HFDL DMR Continuous CIS-45 (33 / 45 Bd)
PACTOR (I, II, II FEC, III, 4) dPMR CIS-60
VDL2 D-STAR CIS-93
  GSM (<3G) LINK11 (CLEW)
  MPT1327 1200Bd LINK11 (SLEW)
  NXDN 2400 Bd MIL-STD-188-110A Serial (STANAG 4539 )
  NXDN 4800 Bd MIL-STD-188-110B/C App. C (STANAG 4539 HDR )
  TETRA Downlink STANAG 4285/4481 (PSK)
  TETRA Uplink STANAG 4529
  TETRAPOL STANAG 4539
  Thuraya SAT Phone Uplink CHN 4+4
  Yaesu System Fusion CHN hybrid
  Inmarsat Satphone Uplink  
  Iridium Satphone Uplink  

Demodulators

Demodulator Name Remarks
General Automatic frequency, amplitude and symbol rate control
Primary demodulation USB/LSB/AM/FM
Automatic burst synchronization
A3E /AM  
Analogue Selcall  
ASK 2 (OOK)  
ASK 2/4  
ASK2PSK2 (ASK4)  
ASK2PSK8  
ASK4PSK8  
Chirp  
CLOVER 2000  
CLOVER 2500  
CLOVER II  
Coquelet  
DPSK 2, 4, 8, 16 A/B  
F1A  
F3E / FM  
F6/F7B  
FSK 2 matched filter  
FSK 2, 3 autoshift  
FSK 2, 3, 4 discr.  
J3E (USB, LSB)  
LINK-11  
MDPSK 2, 4, 8, 16 A/B  
MFSK 2  
Morse, CW  
MPSK 2, 4, 8, 16 A/B  
MSK / GMSK  
MT63  
Multichannel FSK 2  
MultiModem  
Multitone (MFSK)  
OFDM  
OQPSK  
PACTOR II, III, 4  
PSK 2, 4, 8, 16 A/B  
PSK data aided Fast adaptive equalizer, soft decision
QAM 16, 32, 36, 64, 128, 144, 256 V.17, V.22, V.32
TFM3  
THROB/THROBX  
Voice A3E/J3E, J3E, J3E USB, J3E LSB , A3E, F3E

Decoders

  • You can add new decoders or modify existing source code (SRC).
  • MIL decoders require an end user certificate for delivery outside Germany
  • PMR decoders require an end user certificate for delivery outside EU
  • SAT decoders are included in the PMR package and require an end user certificate for delivery outside EU

Soure Codes (SRC)

  • Source Code provided.
    go2DECODE is required to modify the protocol or to add additional output to the decoder (new alphabets, new META data handling etc.)

Decoder Package (PKG)

  • STD, included in basic products
  • MIL, requires EUC outside Germany
  • PMR, requires EUC outside EU
  • SAT, part of PMR Package

Legacy Decoders

  • Old, obsolete or outdated decoders are also included, as it cannot be guaranteed that such signals will not be reactivated. The information can only be given with great uncertainty.
  • November 2109 we again found signals marked before as legacy... sorry. But that's why we're also doing the monitoring to check the situation

HF Decoders (Protocols)

No Decoder Release 20.2 Alias, Remarks SRC PKG
1 ALCATEL 801H COQUELET-100, legacy, detection only X STD
2 ALE 2G MIL-188-141A/B, MIL-STD-188-110A/B (APP. C), GJB 2077-94 2G ALE X STD
3 ALE 3G STANAG 4538, MIL-188-141B APP C, HARRIS ANW2 3G ALE   MIL
4 ALE-400   X STD
5 ALIS RS-ARQ, GM856C1, MERLIN, ALIS SLOW X STD
6 ALIS-2 RS-ARQ 2, RS-ARQ 240, MTONE, RS ARQ 240, ALIS FAST X STD
7 ARQ6-90 CCIR-518 VARIANT, legacy X STD
8 ARQ6-98 CCIR-518 VARIANT, legacy X STD
9 ARQ-E ARQ-1000 DUPLEX X STD
10 ARQ-E3 ARQ-M1, CCIR-519 VARIANT, TDM 342 1 CHANNEL X STD
11 ARQ-M2-242 TDM-242, ARQ-28, TDM-2, legacy X STD
12 ARQ-M2-342 TDM-342, ARQ-28, legacy X STD
13 ARQ-M4-242 TDM-242, ARQ-56, legacy X STD
14 ARQ-M4-342 TDM-342, ARQ-56, ARQ-4, TDM-4, legacy X STD
15 ARQ-N ARQ-1000, legacy X STD
16 ASCII, 7BIT, 8 BIT ITA5, RTTY7 X STD
17 AUTOSPEC SPREAD-11, SPREAD-21, SPREAD-BAUER, legacy X STD
18 BAUDOT ASYNC 1.5 STOPBIT RTTY5, ASYNC FSK, ITA-2 X STD
19 BAUDOT SYNC   X STD
20 BAUDOT SYNC 2 STOPBIT SYNC FSK X STD
21 BAUDOT UNIVERSAL ARABIC, CYRILLIC, HEBREW ALPHABETS X STD
22 BULG-ASCII IRA ARQ, ASCII ARQ, legacy X STD
23 CHN 4+4 PSK PSKWT, PRC/PLAADF 4+4   MIL
24 CHN MIL 4FSK detection only X STD
25 CHU TIME SIGNAL   X STD
26 CIS-11 TORG 10/11 X STD
27 CIS-112 OFDM BURST detection only X STD
28 CIS-112 OFDM STREAM detection only X STD
29 CIS-12 PSK2/4A/4B AT3004D, AT3104D, MS5, FIRE, RUSSIAN VOCODER, CIS-20 x STD
30 CIS-128 OFDM 3 kHz / 6 kHz detection only X STD
31 CIS-14 TORG-14, PARITY14, CIS-96, AMOR, AMOR-96 x STD
32 CIS-36 CROWD-36, CIS 10-11-11, TONE34, CIS-36 ECC, SERDOLIK x STD
33 CIS-36-50 BEE 36-50, T-600 x STD
34 CIS-405-395 CIS-40.5 PSEUDO, FROST1, T-206 X STD
35 CIS-45 OFDM 33.3 BD / 40 BD detection only X STD
36 CIS-50-50   x STD
37 CIS-81-81 CIS-81, CIS-81-29, CIS-29, FROST x STD
38 CIS-AKULA   x STD
39 CIS-FSK 200/1000 ACF=288 X STD
40 CIS-FSK 200/500   X STD
41 CLANSMAN FSK 300   X STD
42 CLOVER 2000 8-TONE CLOVER, Q-CLOVER, QUAD CLOVER   STD
43 CLOVER 2000 BROADCAST     STD
44 CLOVER 2500     STD
45 CLOVER 2500 BROADCAST     STD
46 CLOVER II 400 HZ CLOVER, KFS-CLOVER   STD
47 CODAN 3012 16CH CODAN9001/9002 16CH PSK   STD
48 CODAN 3012 CHIRP 3012 CHIRP, CALM SELCALL, CODAN ALE, CODAN 9001-CHIRP   STD
49 CODAN 3212 16CH     STD
50 CODAN 3212 1CH PSK 600 AND 1200 BPS   STD
51 CODAN 3212 1CH PSK 75 BPS     STD
52 CODAN 3212 1CH PSK HDR 2400 AND 3600 BPS   STD
53 CODAN SELCAL CCIR 493-4, CODAN 8580/8500, BARRETT SELCAL   STD
54 CONTESTIA 8/16/32   X STD
55 COQUELET-13 COQUELET-MK1, legacy X STD
56 COQUELET-8 COQUELET-MK2, legacy X STD
57 COQUELET-80 COQUELET-8 FEC, legacy X STD
58 CV-786     MIL
59 DGPS RTCM SC 104, IALA, MF BRACON, DATATRAC, M.823 X STD
60 DPRK PSK legacy, detection only X STD
61 DSC-HF GMDSS, ATIS-HF X STD
62 DUP-ARQ ARQ-DUPLEX, 125-ARTRAC, legacy X STD
63 F7B MORSE FSK MORSE X STD
64 F7B MORSE/BAUDOT 2 CHANNEL ITA-2 RTTY, BAUDOT F7B, BF6 BAUDOT, ITA-2 TWIN X STD
65 FEC-A FEC 100, FEC 101, FEC-100 DIRTY, legacy X STD
66 FSK 400/500 legacy, detection only X STD
67 GLOBE WIRELESS FSK GW-DATAPLEX, GW-PACTOR, GL-5100 FSK, legacy X STD
68 GLOBE WIRELESS OFDM GL-5100 OFDM, legacy, detection only   STD
69 GLOBE WIRELESS PSK GW-DATAPLEX, GL-5100 PSK, GW-CLOVER, legacy X STD
70 G-TOR GOLAY-TOR   STD
71 HC-ARQ HAEGELIN-CRYPTO ARQ, legacy   MIL
72 HFDL ACARS HF, ARINC 635-2 HF DATALINK, ARINC 753 X STD
73 HNG-FEC FEC-HNG,, legacy   STD
74 JAP NAVY SLOT MACHINE (JSM) XSL, detection only   STD
75 LINK-11 CLEW STANAG 5511, MIL-STD 188-203-1A, TADIL-A, TADIL-B, ALLIGATOR X MIL
76 LINK-11 SLEW STANAG 5511 SLEW, TADIL-A, LESW   MIL
77 LINK-22 only STANAG 4539 Appendix D, detection only   MIL
78 MEROD RAC ARQ, RACAL/THALES ARQ 150 BD, 267 BD   STD
79 MFSK-16 HAM   X STD
80 MFSK-32 HAM   X STD
81 MFSK-8 HAM   X STD
82 MIL-188-110-16 TONE, APP. A ONLY RAW OUTPUT   MIL
83 MIL-188-110-39 TONE, APP. B     MIL
84 MIL-188-110A/B     MIL
85 MIL-188-110C APP. D WBHF 3/6/9/12/15/18/21/24 kHz, detection only   MIL
86 MIL-M-55529A MD-522 NB/WB, STANAG-55529, MD-674   MIL
87 MORSE CW-MORSE X STD
88 MT63   X STD
89 OLIVIA OLIVIA MFSK 8/16/32 X STD
90 PACKET 300 AX.25 X STD
91 PACTOR-4     STD
92 PACTOR-I DATRON X-TOR, DSP-QUIC I, INCL. DECODING OF ROBUST CONNECT BURSTS X STD
93 PACTOR-I-FEC   X STD
94 PACTOR-II DSP-QUIC II   STD
95 PACTOR-II-FEC     STD
96 PACTOR-III     STD
97 PANTHER-H SYNC RACAL/THALES PANTHER-H, INTELLIGENT FREQ. HOPPER, detection only   MIL
98 PICCOLO-MK12 PICCOLO ITA-5, PICCOLO 12, legacy X STD
99 PICCOLO-MK6 PICCOLO ITA-2, PICCOLO 6, legacy X STD
100 POL-ARQ ARQ POL, CCIR-518 VARIANT X STD
101 PSK10/31/63/125/250 BPSK10/31/63/125/250 X STD
102 PSK31/63/125/220-FEC   X STD
103 PSK-AM 10/31/50 BD   X STD
104 QPSK31/63/125/250/500   X STD
105 ROBUST PACKET RADIO ROBUSTFEC (RFEC)   STD
106 RUM-FEC ROU-FEC, SAUD-FEC, FEC ROU, legacy X STD
107 SELCAL ICAO ARINC, ANNEX-10   STD
108 SI-ARQ ARQ-S, ARQ-1000S, legacy X STD
109 SI-FEC FEC-S, FEC 1000S, legacy X STD
110 SITOR-A SITOR-ARQ, ARQ-625, AMTOR, CCIR-476 A/B X STD
111 SITOR-B SITOR-FEC, FEC-625, AMTOR, CCIR-476B, TOR-DIRTY, NAVTEX X STD
112 SP14 NUM 13 X STD
113 SPREAD 51 legacy X STD
114 STANAG 4197 NO AUDIO CODEC   MIL
115 STANAG 4285 KG-84 detection   MIL
116 STANAG 4415 NATO ROBUST,75BPS, ALSO PART OF MIL188-110A/B   MIL
117 STANAG 4481-FSK KG-84 detection   MIL
118 STANAG 4481-PSK     MIL
119 STANAG 4529     MIL
120 STANAG 4539 MIL-188-110A/B, SER., MIL-188-110A/B APP. C   MIL
121 STANAG 4539 HDR MIL-188-110B APP.C   MIL
122 STANAG 5065 FSK     MIL
123 STANAG 5066     MIL
124 SWED-ARQ ARQ-SWED, CCIR-518 VARIANT, legacy X STD
125 THALES SKYMASTER SKYHOOPER 8-FSK ALE SYSTEME 3000, detection only   MIL
126 THROB THROB1,2,4 X STD
127 THROBX THROBX1,2,4 X STD
128 TURKISH NAVY KG-84 detection X MIL
129 TWINPLEX ARQ (F7B) TWINPLEX-SITOR, TT1585, F7B X STD
130 VISEL YUG-MIL, FEC12, legacy X STD
131 VOICE A3E/J3E AM X STD
132 VOICE J3E   X STD
133 VOICE J3E-LSB   X STD
134 VOICE J3E-USB SELCAL ICAO SELCAL ICAO, Annex-10 X STD
135 X06-MAZIELKA RUS DIPLO 6-TONE "MAZIELKA" X STD
136 XPA CIS-MFSK-20, CIS-MFSK-17 X STD
137 XPA-2 CIS-MFSK-16, CIS-MFSK-14 X STD

VHF, UHF SHF Decoders (Protocols)

No Decoder, Release 20.2 Alias, Remarks SRC PKG
1 ACARS-VHF SITA, ARINC 597 X STD
2 AIS M1371, SELEX X STD
3 APCO25 PHASE 1 FDMA P25, ASTRO 25,   PMR
4 APCO25 PHASE 2 DOWNLINK     PMR
5 ATIS   X STD
6 AUTOCAB   X STD
7 BIIS BAA1382 X STD
8 DECT CS channel data (GAP) voice if unencrypted   PMR
9 DMR ETSI-TS 102 361, MOTOROLA MOTOTRBO, VERTEX VXD, BURST EMISSIONS   PMR
10 DMR CONTINUOUS CONTINUOUS EMISSIONS   PMR
11 DPMR IDAS   PMR
12 DSC-VHF/UHF GMDSS-VHF/UHF, CCIR 493-4, CCIR 541-2, BARRETT SELCALL, QMAC SELCALL X STD
13 D-STAR     PMR
14 ERMES legacy X STD
15 FLEX REFLEX X STD
16 FMS-BOS   X STD
17 GOLAY PAGER GOLAY/GSC X STD
18 GSM Control Channel C0   PMR
19 INMARSAT-AERO-C 8.4 kbps   SAT
20 INMARSAT-AERO-C 10.5 / 21.0 kbps, NO AUDIO OUTPUT   SAT
21 INMARSAT-AERO-P 0.6 / 1.2 / 2.4 / 4.8 / 10.5 kbps   SAT
22 INMARSAT-AERO-R 0.6 / 1.2 / 2.4 / 10.5 kbps   SAT
23 INMARSAT-AERO-T 0.6 / 1.2 / 2.4 / 10.5 kbps   SAT
24 INMARSAT-C-TDM     SAT
25 INMARSAT-C-TDMA     SAT
26 IRIDIUM UPLINK detection only   SAT
27 ISATPHONE UPLINK detection only   SAT
28 MOBITEX-1200 MOBITEX-80 X STD
29 MOBITEX-8000 MOBITEX-400 X STD
30 MOTOROLA SMARTNET APCO-16, MTR-EDACS (CHANNELD DECODING) 4/6 KHZ   PMR
31 MPT-1327 CHEKKER   PMR
32 NMT-450   X STD
33 NXDN IDAS, NEXEDGE, with automatic key recovery   PMR
34 PACKET-1200/2400/4800/9600 AX.25 X STD
35 POCSAG CITYRUF X STD
36 SELCAL CCIR-1 ITU-R-1, PCCIR X STD
37 SELCAL CCIR-2 ITU-R-2, CCIR-7 X STD
38 SELCAL CCITT   X STD
39 SELCAL CTCSS MPT1306 X STD
40 SELCAL DTMF incl. in Voice F3E - SELCALS X STD
41 SELCAL EEA MPT1316 X STD
42 SELCAL EIA   X STD
43 SELCAL EURO EURO5 X STD
44 SELCAL MODAT   X STD
45 SELCAL NATEL   X STD
46 SELCAL VDEW   X STD
47 SELCAL ZVEI PZVEI, DZVEI, ZVEI-1, ZVEI-2, ZVEI-3, incl. in Voice F3E - SELCALS X STD
48 SELCALL CTCSS incl. in Voice F3E - SELCALS X STD
49 SELCALL DCS incl. in Voice F3E - SELCALS X STD
50 SELCALL DTMF   X STD
51 TETRA     PMR
52 TETRA DMO     PMR
53 TETRA UPLINK     PMR
54 TETRAPOL     PMR
55 TETRAPOL VHF     PMR
56 THURAYA UPLINK RACH BURSTS ONLY (INCL. PHONE # AND GPS-POS)   SAT
57 VDL 2 VDL-M2 X STD
58 VDL 3 VDL-M3 X STD
59 VOICE A3E (AM)   X STD
60 VOICE A3E (AM), AIR TRAFFIC short Transmissions X STD
61 VOICE F3E (FM) - SELCALS   X STD
62 VOICE INVERSION FM-LSB SCRAMBLED ANALOG VOICE X STD
63 YAESU SYSTEM FUSION NB/YAESU / VERTEX STANDARD C4FM SMART FUSION (YSF)   PMR

Hopper Detection

Parameter Description
Search bandwidth MF/HF: 2.4 MHz (no scan)
VHF/UHF: 20 MHz (no scan)
Minimum signal duration ≥ 1100 ms duration for frequency hopper; min. 100 hops
Hop rate 5 to 50 hops/s for MF/HF or 100 to 1000 hops/s for V/UHF
Min bandwidth 250 kHz
Hop properties Hops belonging to one FHSS emission are expected to be similar in spectral shape.
This applies for most digital - e.g. PSK based - modulations.
Individual hops should contain several symbols.
Signal Input Signal input from PLATH SIR 5110 (using IP UDP Protocol)
Signal input from PLATH SIR 2115 (using IP UDP Protocol)
Signal input from IZT R3xxx
Other receivers on request
Recommended hardware Standard HP DL360/380 Gen10 Server (alternatively Blade) with 2 x Intel Xeon-Gold (6152)
128GB DDR4-2666 RAM
2 x 300GB SAS 12G 15K
1 or 10 GbE LAN
Operating System Windows Server 2016/2019, 64 bit;
CentOS 7.x (7.5 or higher; 7.5 is recommended) 64 bit Linux. English or German.
Parameters for each detected Frequency Hopper (FH): Description
Hopper ID Unique identifier of the hopper
Frequency From Lower frequency limit of the FH
Frequency To Upper frequency limit of the FH
Start time Start time of the FH (first time of detection by the HOPD)
End time End time of the FH (last time of detection by the HOPD)
Hop Rate Estimated hop rate in hops/second
Mean dwell time Mean value of measured hop dwell times
Standard deviation dwell time Standard deviation of measured hop dwell time
Mean inter-hop pause time Mean value of measured inter-hop pause time
Standard deviation inter-hop pause time Standard deviation of measured inter-hop pause time
Mean hop bandwidth Mean value bandwidth of all hops assigned to this hopper
Number of channels The number of frequency channels used by the hopper
SNR SNR estimation based on all hops seen for this FH emission
Parameters for each Frequency Hop: Description
Hopper ID Unique identifier of the hopper
Frequency From Lower frequency limit of the hop
Frequency To Upper frequency limit of the hop
Start time Start time of the hop
End time End time of the hop
SNR SNR estimation
FHSS ID ID of FH this hop belongs to (if any)

Supported Receivers

Brand Receiver WINDOWS LINUX Max. BW, Comments
Airspy Airspy HF+ Discovery x   768 kHz, ExtIO, 768 kHz
Airspy Airspy R2 x   8 MHz, ExtIO
CommsAudit CA7851 x x 5 MHz, VITA 49, Panorama, Scan
CommsAudit CA7852 x x 40 MHz, VITA 49
ExtIO   x   Max. receiver bandwidth
GEW gRX-LAN x   1 MHz, ExtIO
IZT 3XXX x x 20 MHz, Up to 3 channels, Panorama, Scan
IZT 40XX x x 1 MHz, SignalSuite, 1 channel only
Microtelecom PERSEUS x x 1.6 MHz, limited USB3 compatiblity
NARDA IDA2 x x 320 kHz
NARDA NRA-3000 x x 320 kHz
NARDA NRA-6000 x x 320 kHz
NARDA SignalShark x x 20 MHz, VITA 49
NI USRP X310 x x 20 MHz
NOXON RTL2832U, RTLSDR x   3.2 MHz, ExtIO
PLATH SIR2110 x x 20 MHz, LINUX recommended, external receiver control only
PLATH SIR2115 x x 4 x 20 MHz, External receiver control only
PLATH SIR5110 x x 16x768 kHz subbands, External receiver control only
PLATH SIR5115 x x 40x768 kHz subbands, External receiver control only
RFSPACE NetSDR x x 2 MHz
RFSPACE SDR14 x   190 kHz
Rohde & Schwarz EB500 x x 5 MHz. Panorama
Rohde & Schwarz EB510 x x 5 MHz
Rohde & Schwarz EM100 x x 500 kHz, Panorama, Scan
Rohde & Schwarz ESMD x x External receiver control only
Rohde & Schwarz PR100 x x 500 kHz, Panorama, Scan
SDRplay RSP1 x   6 MHz, ExtIO
SDRplay RSP1a x   6 MHz, ExtIO
SDRplay RSP2 x   6 MHz, ExtIO
SDRplay RSPdx x   6 MHz, ExtIO
SignalHound BB60C x x 27 MHz, Scan
thinkRF R5500-408 x x 6.25 MHz, VITA-49
thinkRF R5500-427 x x 6.25 MHz, VITA-49
thinkRF WSA5000-408 x x 780 kHz, VITA-49
thinkRF WSA5000-427 x x 780 kHz, VITA-49
VITA 49, Generic       Can be configured for different receiver types
WiNRADiO WR-G31DDC x   800 kHz, ExtIO
WiNRADiO WR-G33DDC x x 4 MHz, Panorama
WiNRADiO WR-G35DDC x x 4 MHz, Panorama
WiNRADiO WR-G39DDC x x 4 +2 MHz, Panorama
x Others       on request

go2MONITOR Computer Recommendations

Setup Computer
non-binding recommendation		 Remarks
go2M-4 + WMPC16 + AMT 2 x Intel Xeon with 8 Cores, 2,4 GHz
32 GB RAM		 e.g HP DL360 Gen10
go2M-8 3 x WMPC32 + AMT 2 x Intel® Xeon® 6252 with 24 Cores
128 GB R		 e.g. HP DL360 Gen10
narrowband processing only
go2M-4 + WMPC32 + AMT 20 MHz Dual XEON 6242
96 GB RAM		 e.g. HP Workstation Z8 G4 WKS
go2M-4 + AMT Intel I7 8 Cores
8 GB RAM		  
go2M-8 + AMT 5 MHz i7-8700 6 cores
16 GB RAM
1 TB SSD		 e.g. HP Z2 Mini G4 Workstation
  Laptops Recommended:
- TDP: 45 W
- 6-8 cores
- min 2.4 GHz
- good cooling (otherwise speed will be throttled after a short time )
go2M-4 + AMT 2 MHz i7 8550U
16 GB RAM
512 GB SSD		 e.g. LENOVO ThinkPad T480
go2M-4 + AMT 20 MHz Xeon E-2186M
32 GB
1TB SSD		 e.g. LENOVO ThinkPad P72
in a dense signal scenario maybe not all signals get classified
go2M-8 + AMT 5 MHz i9-9980K 8 cores
32 GB RAM
2 TB SSD		 e.g. DELL XPS 15 7590