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This page contains links and downloads for utilities that can be used to decode the data streams of various trunked systems. Many, though not all, of these applications require audio from the [[Discriminator output]] of your scanner. In addition, except Pro96com and UniTrunker, you must convert the audio from your scanner into serial data by using one of the circuits (or pre made units) shown on the [[Data Slicers]] page.<br>
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This page contains links and downloads for utilities that can be used to decode the data streams of various trunked systems. Many, though not all, of these applications require audio from the [[Discriminator output]] of your scanner. Some of the older utilities (like Trunker) require you to convert the audio from your scanner into serial data by using one of the circuits (or pre made units) shown on the [[Data Slicers]] page. Newer applications such as UniTrunker, DSD and DSDPlus don't require the use of a data slicer. See the applications' page for more information.
If you have questions about these utilities, please post on the [http://www.radioreference.com/forums/forumdisplay.php?f=26 Trunker/Etrunker/T4Win Decoders] forum at Radioreference
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Some of these utilities may also be directly addressed by [[Software Defined Radios]], such as the [[RTL-SDR]], or may be used via piping. For this unit, and possibly many others, see the [http://www.rtl-sdr.com/big-list-rtl-sdr-supported-software/ Big List of RTL-SDR Supported Software].
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If you have questions about these utilities, please post on the [https://forums.radioreference.com/forums/voice-control-channel-decoding-software.26/ Voice Control Channel Decoding Software] forum. [[Software Defined Radios|SDR]] related questions should be posted in the [https://forums.radioreference.com/forums/software-defined-radio.193/ Software Defined Radio] forum.
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=== MultiProtocol Decoders ===
 
=== MultiProtocol Decoders ===
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* [[UniTrunker]] - auto-detects and decodes Project 25 9600 baud, Motorola 3600 baud, EDACS, EDACS ESK, and MPT-1327 systems
 
* [[UniTrunker]] - auto-detects and decodes Project 25 9600 baud, Motorola 3600 baud, EDACS, EDACS ESK, and MPT-1327 systems
 
* [[T4Win]] - development has ceased in favor of Unitrunker, above
 
* [[T4Win]] - development has ceased in favor of Unitrunker, above
* [http://www.fiftyonefiftysystems.com/TrunkMon/TrunkMon.html TrunkMon] for Motorola and EDACS systems
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* TrunkPCR- Motorola and EDACS trunking for the Icom PCR computer-driven receivers
* [http://www.fiftyonefiftysystems.com/TrunkPcr/TrunkPcr.html TrunkPCR] Motorola and EDACS trunking for the Icom PCR computer-driven receivers
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** See our [[TrunkPCR]] article for tips on where to find it and how to use this software. The [[IC-PCR100]] requires a discriminator tap, the other supported radios don't.
** See our [[TrunkPCR]] article for tips on how to use this software. The [[IC-PCR100]] requires a discriminator tap, the other supported radios don't.
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* [http://osmocom.org/projects/op25/wiki OP25]
* [[Digital Speech Decoder (software package)]] - Decodes many voice trunking systems, including a few currently not supported on todays scanners, such as MotoTRBO
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**'''Description:''' software defined radio implementation of a P25, DMR Yaesu Fusion and DSTAR receiver and transmitter based on GNURadio.  
* [[DSDPlus]]
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* [[Digital Speech Decoder (software package)]] - Decodes many voice trunking systems, including a few currently not supported on todays scanners (see below)
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* [[DSDPlus]] - Software that decodes audio for NXDN4800 (Kenwood NEXEDGE and Icom IDAS), NXDN9600 (Kenwood NEXEDGE), DMR/MotoTRBO (TDMA inputs + both output slots), P25 Phase 1,  X2-TDMA, and ProVoice.  D-STAR & dPMR can be decoded but without audio.
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* [https://github.com/dsheirer/sdrtrunk/wiki/ SDRTrunk] - multi-channel audio and control data decoder for USB software defined radio dongles and scanner audio output with decoder support for P25 Phase 1 C4FM/LSM Simulcast, P25 Phase 2, LTR, LTR-Net, Passport, MPT-1327, Fleetsync II, Lojack, MDC-1200 and Tait GPS protocols
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** Compatible with some [[Software Defined Radios|SDR]] Dongles- see the website for more
  
 
=== TETRA decoders ===
 
=== TETRA decoders ===
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=== Project 25 9600baud decoders ===
 
=== Project 25 9600baud decoders ===
  
* [http://groups.yahoo.com/group/pro96com/ PRO96Com]
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* PRO96Com
 
** [[Media:Pro96Com.pdf|Pro96Com User Guide (PDF)]]
 
** [[Media:Pro96Com.pdf|Pro96Com User Guide (PDF)]]
 
**'''Description:'''  This utility is designed to log and map 9600bps APCO-25 trunked systems '''only''' using the following models of scanners:
 
**'''Description:'''  This utility is designed to log and map 9600bps APCO-25 trunked systems '''only''' using the following models of scanners:
***'''GRE/Radio Shack''': [[Pro-96]], [[Pro-2096]] (trunking stream monitoring only)
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***'''GRE/Radio Shack''': [[Pro-96]], [[Pro-2096]], Pro 106, Pro 197 (trunking stream monitoring only)
 
***'''GRE''': [[PSR-500]], [[PSR-600]] (trunking stream monitoring or as secondary radio)
 
***'''GRE''': [[PSR-500]], [[PSR-600]] (trunking stream monitoring or as secondary radio)
 
***'''Uniden''': [[BC250D]], [[BC296D]], [[BC785D]], [[BC796D]], [[BCD996T]], [[BCD396T]] (secondary radio only, controlled by PRO96Com)
 
***'''Uniden''': [[BC250D]], [[BC296D]], [[BC785D]], [[BC796D]], [[BCD996T]], [[BCD396T]] (secondary radio only, controlled by PRO96Com)
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**Plans for EDACS and 3600bps APCO-25 support are planned for a later release '''for GRE PSR-500/600 only''' (the Pro-96 cannot be supported due to the fact it does not output the necessary data).  Of note, PRO96Com does '''not''' require a discriminator tap.
 
**Plans for EDACS and 3600bps APCO-25 support are planned for a later release '''for GRE PSR-500/600 only''' (the Pro-96 cannot be supported due to the fact it does not output the necessary data).  Of note, PRO96Com does '''not''' require a discriminator tap.
  
* [http://132.234.113.119/op25 OP25]
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* [https://github.com/dsheirer/sdrtrunk/wiki SDRTrunk]
**'''Description:''' software defined radio implementation of a P25 receiver and repeater based on gnuradio and USRP
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**'''Description:''' decodes C4FM and CQPSK LSM Simulcast control and traffic channels and provides decoded audio support via the JMBE library
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** Compatible with some [[Software Defined Radios|SDR]] Dongles- see the website for more
  
 
=== Motorola Decoders ===
 
=== Motorola Decoders ===
  
 
* [[Trunker]] - The original DOS based Motorola Control Channel decoder.  Provides scanner control and basic talkgroup/id tracking.
 
* [[Trunker]] - The original DOS based Motorola Control Channel decoder.  Provides scanner control and basic talkgroup/id tracking.
** The Yahoo support group for Trunker and its variations can be found [http://groups.yahoo.com/group/trunker/ here]
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* [http://www.mnorwood.com/TrunkerDM/ TrunkerDM] - Dead Link
* [http://www.mnorwood.com/TrunkerDM/ TrunkerDM]
 
 
* [http://www.r00t.cz/radio/prog.php?p=mtrunker32&en=1 MTrunker ported to Win32]
 
* [http://www.r00t.cz/radio/prog.php?p=mtrunker32&en=1 MTrunker ported to Win32]
 
** A forum for this software can be found [http://www.r00t.cz/forum/viewforum.php?f=4 here]
 
** A forum for this software can be found [http://www.r00t.cz/forum/viewforum.php?f=4 here]
 
** You will need .RAR decompression software, such as [http://www.download.com/WinRAR/3000-2250-10007677.html?part=dl-winrar&amp;subj=dl&amp;tag=button WinRAR] to decompress this file  
 
** You will need .RAR decompression software, such as [http://www.download.com/WinRAR/3000-2250-10007677.html?part=dl-winrar&amp;subj=dl&amp;tag=button WinRAR] to decompress this file  
 
* [http://www.thebriarpatch.org/treport/ Treport] - mainly displays diagnostic information for a Motorola trunking datastream
 
* [http://www.thebriarpatch.org/treport/ Treport] - mainly displays diagnostic information for a Motorola trunking datastream
* [http://groups.yahoo.com/group/TRUNK88 Trunk88] - A Trunked Radio Decoder for Motorola Systems. Very similar in operation to trunker, will control most Uniden radios, will accept data slicer or SB16 compatible sound input. Program download is [http://home.ica.net/~phoenix/wap/TRUNK88/ here]. Support can be found on the TRUNK88 Yahoo group.<br>
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* TRUNK88 - A Trunked Radio Decoder for Motorola Systems. Very similar in operation to trunker, will control most Uniden radios, will accept data slicer or SB16 compatible sound input. Program download is [http://home.ica.net/~phoenix/wap/TRUNK88/ here].
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** Compatible with some [[Software Defined Radios|SDR]] Dongles such as the [[RTL-SDR]]
  
 
===EDACS Decoders===
 
===EDACS Decoders===
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* [http://www.radioreference.com/digital/m383/trunker.pdf Trunker 3.83 documentation (last two pages include Etrunker info.)]
 
* [http://www.radioreference.com/digital/m383/trunker.pdf Trunker 3.83 documentation (last two pages include Etrunker info.)]
  
'''Description: '''The E-Trunker Utility. Decodes and Displays information from the EDACS Trunked Radio Datastream. This version is dated 07/27/2001  (See yahoo group info for Trunker shown above.)
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'''Description: '''The E-Trunker Utility. Decodes and Displays information from the EDACS Trunked Radio Datastream. This version is dated 07/27/2001   
  
 
* [http://www.radioreference.com/trunked/edacs/geafs25.zip GEAFS]
 
* [http://www.radioreference.com/trunked/edacs/geafs25.zip GEAFS]
 
'''Description:'''Utility for managing EDACS talkgroups in the Etrunker program. Note this is a DOS application, but is compiled to only run under Windows.  
 
'''Description:'''Utility for managing EDACS talkgroups in the Etrunker program. Note this is a DOS application, but is compiled to only run under Windows.  
  
* [http://www.pcitizen.com Decimal to EDACS Agency Fleet Subfleet (AFS) Number Converter]
 
'''Description:''' Translates decimal IDs to EDACS AFS format. Select from the left frame about 1/2 of the way down
 
 
<br>
 
<br>
  
 
==='''MPT-1327''' Decoders===
 
==='''MPT-1327''' Decoders===
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* [https://github.com/dsheirer/sdrtrunk/wiki SDRTrunk] - provides full traffic channel following when used with one or more USB dongle receivers.  Decodes control channel from normal scanner audio or from USB dongle.
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** Compatible with some [[Software Defined Radios|SDR]] Dongles- see the website for more
 
* Trunksniffer  
 
* Trunksniffer  
** The Yahoo mailing list for this software can be found [http://groups.yahoo.com/group/trunksniffer/ here]
 
 
** [http://www.ukmidlandscanner.co.uk/trnksniffrev.htm TrunkSniffer review at ukmidlandscanner]   
 
** [http://www.ukmidlandscanner.co.uk/trnksniffrev.htm TrunkSniffer review at ukmidlandscanner]   
 
* [http://www.linato.net/trunkview/ TrunkView] - Does NOT require a discriminator tap.
 
* [http://www.linato.net/trunkview/ TrunkView] - Does NOT require a discriminator tap.
** The Yahoo mailing list for this software can be found [http://groups.yahoo.com/group/trunkview/ here]
 
 
* [http://www.r00t.cz/SW/MPTTrunker R00t's MPTTRUNKER]
 
* [http://www.r00t.cz/SW/MPTTrunker R00t's MPTTRUNKER]
  
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'''Description:''' Eric Cottrell has graciously compiled LTR, Passport and MultiNet Tracking support into a trunker like interface. This is the latest beta release RC4. Some modifications to the discriminator input are necessary to add additional filtering for using this utility. The schematic for these changes is shown [[media:LTRDicer1.png|here]]  
 
'''Description:''' Eric Cottrell has graciously compiled LTR, Passport and MultiNet Tracking support into a trunker like interface. This is the latest beta release RC4. Some modifications to the discriminator input are necessary to add additional filtering for using this utility. The schematic for these changes is shown [[media:LTRDicer1.png|here]]  
 
* [http://home.ica.net/~phoenix/wap/LTR/ LTR Analyzer]
 
* [http://home.ica.net/~phoenix/wap/LTR/ LTR Analyzer]
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** Compatible with some [[Software Defined Radios|SDR]] Dongles- see the website for more
 
* [http://www.ericcarlson.net/ltrlogger/ LTRLogger] - Windows commandline application to output LTR data in an easily human-readable format
 
* [http://www.ericcarlson.net/ltrlogger/ LTRLogger] - Windows commandline application to output LTR data in an easily human-readable format
<br>
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* [https://github.com/dsheirer/sdrtrunk/wiki SDRTrunk] - LTR Standard, LTR-Net, Passport
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** Compatible with some [[Software Defined Radios|SDR]] Dongles- see the website for more
  
 
===Winradio Trunking Decoders===
 
===Winradio Trunking Decoders===
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'''Description:''' This spreadsheet for MS Excel allows you to figure various options for frequency defined systems (VHF/UHF). You can calculate a base frequency for each allowable offset, print out a full range with a given base and offset, convert a channel hex id to an 800 or 900 frequency, and define a configuration for programming a Motorola radio or system.
 
'''Description:''' This spreadsheet for MS Excel allows you to figure various options for frequency defined systems (VHF/UHF). You can calculate a base frequency for each allowable offset, print out a full range with a given base and offset, convert a channel hex id to an 800 or 900 frequency, and define a configuration for programming a Motorola radio or system.
  
[[Category:Downloads]]
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[[Category:Software Downloads]]
[[Category:Software Applications]]
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[[Category:Software for Signal Analysis and Decoding]]
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[[Category:UniTrunker Software]]

Latest revision as of 12:21, 27 January 2021

This page contains links and downloads for utilities that can be used to decode the data streams of various trunked systems. Many, though not all, of these applications require audio from the Discriminator output of your scanner. Some of the older utilities (like Trunker) require you to convert the audio from your scanner into serial data by using one of the circuits (or pre made units) shown on the Data Slicers page. Newer applications such as UniTrunker, DSD and DSDPlus don't require the use of a data slicer. See the applications' page for more information.


Some of these utilities may also be directly addressed by Software Defined Radios, such as the RTL-SDR, or may be used via piping. For this unit, and possibly many others, see the Big List of RTL-SDR Supported Software.


If you have questions about these utilities, please post on the Voice Control Channel Decoding Software forum. SDR related questions should be posted in the Software Defined Radio forum.


MultiProtocol Decoders

These decoders support multiple trunked system types:

  • UniTrunker - auto-detects and decodes Project 25 9600 baud, Motorola 3600 baud, EDACS, EDACS ESK, and MPT-1327 systems
  • T4Win - development has ceased in favor of Unitrunker, above
  • TrunkPCR- Motorola and EDACS trunking for the Icom PCR computer-driven receivers
    • See our TrunkPCR article for tips on where to find it and how to use this software. The IC-PCR100 requires a discriminator tap, the other supported radios don't.
  • OP25
    • Description: software defined radio implementation of a P25, DMR Yaesu Fusion and DSTAR receiver and transmitter based on GNURadio.
  • Digital Speech Decoder (software package) - Decodes many voice trunking systems, including a few currently not supported on todays scanners (see below)
  • DSDPlus - Software that decodes audio for NXDN4800 (Kenwood NEXEDGE and Icom IDAS), NXDN9600 (Kenwood NEXEDGE), DMR/MotoTRBO (TDMA inputs + both output slots), P25 Phase 1, X2-TDMA, and ProVoice. D-STAR & dPMR can be decoded but without audio.
  • SDRTrunk - multi-channel audio and control data decoder for USB software defined radio dongles and scanner audio output with decoder support for P25 Phase 1 C4FM/LSM Simulcast, P25 Phase 2, LTR, LTR-Net, Passport, MPT-1327, Fleetsync II, Lojack, MDC-1200 and Tait GPS protocols
    • Compatible with some SDR Dongles- see the website for more

TETRA decoders

  • osmo-tetra - is a in-development open source decoder using gnuradio and USRP1/2 for signal processing

Project 25 9600baud decoders

  • PRO96Com
    • Pro96Com User Guide (PDF)
    • Description: This utility is designed to log and map 9600bps APCO-25 trunked systems only using the following models of scanners:
    • Plans for EDACS and 3600bps APCO-25 support are planned for a later release for GRE PSR-500/600 only (the Pro-96 cannot be supported due to the fact it does not output the necessary data). Of note, PRO96Com does not require a discriminator tap.
  • SDRTrunk
    • Description: decodes C4FM and CQPSK LSM Simulcast control and traffic channels and provides decoded audio support via the JMBE library
    • Compatible with some SDR Dongles- see the website for more

Motorola Decoders

  • Trunker - The original DOS based Motorola Control Channel decoder. Provides scanner control and basic talkgroup/id tracking.
  • TrunkerDM - Dead Link
  • MTrunker ported to Win32
    • A forum for this software can be found here
    • You will need .RAR decompression software, such as WinRAR to decompress this file
  • Treport - mainly displays diagnostic information for a Motorola trunking datastream
  • TRUNK88 - A Trunked Radio Decoder for Motorola Systems. Very similar in operation to trunker, will control most Uniden radios, will accept data slicer or SB16 compatible sound input. Program download is here.
    • Compatible with some SDR Dongles such as the RTL-SDR

EDACS Decoders

Description: Displays EDACS Diag Information for EDACS systems.

Description: A version of the Etrunker EDACS decoder that supports EDACS System Key (ESK) systems.

Description: The E-Trunker Utility. Decodes and Displays information from the EDACS Trunked Radio Datastream. This version is dated 07/27/2001

Description:Utility for managing EDACS talkgroups in the Etrunker program. Note this is a DOS application, but is compiled to only run under Windows.


MPT-1327 Decoders

LTR Decoders

Description: Eric Cottrell has graciously compiled LTR, Passport and MultiNet Tracking support into a trunker like interface. This is the latest beta release RC4. Some modifications to the discriminator input are necessary to add additional filtering for using this utility. The schematic for these changes is shown here

  • LTR Analyzer
    • Compatible with some SDR Dongles- see the website for more
  • LTRLogger - Windows commandline application to output LTR data in an easily human-readable format
  • SDRTrunk - LTR Standard, LTR-Net, Passport
    • Compatible with some SDR Dongles- see the website for more

Winradio Trunking Decoders

Development and Source Code

Description: Holds some C++ source code of a crude port of crucial portions the Motorola Trunker program. This program served as a proof of concept for using a sound card instead of a serial port for input. Persons so inclined may wish to compile this into an executable using Visual Studio 6 or Visual Studio .NET. This example runs in console mode and displays talk group information as it is decoded from the microphone input of the soundcard.

Description: Source code for the Trunker / Etrunker decoding applications. This is the full C++ code for both applications

Miscellaneous Utilities

  • Marshall Sherard, KE4ZNR, has an online talkgroup converter that can be used to convert between the various formats of talkgroups (EDACS hex, AFS, Uniden, Decimal and Motorola)

Description: DOS Type I utility to convert hex or decimal values to all Sizecode variations. And now supports converting a hex or decimal number to Uniden AFS.

Description: Conversion utility for DUMP.TRE to TREPORT.OSW [Initiate load with 'O'] "OUT2OSW /6 treport.osw"

Description: This spreadsheet for MS Excel allows you to figure various options for frequency defined systems (VHF/UHF). You can calculate a base frequency for each allowable offset, print out a full range with a given base and offset, convert a channel hex id to an 800 or 900 frequency, and define a configuration for programming a Motorola radio or system.