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Overview

sdrtrunk is a java application for decoding and trunk tracking multiple analog and digital radio channels across multiple USB dongle tuners or baseband recordings. The application provides local monitoring of decoded audio, recording, and streaming of audio to local and remote streaming services.

Radio Protocols

sdrtrunk can decode the following radio protocols:

• AM - AM demodulator
• APCO-25 Phase 1 (C4FM/Simulcast) - P25 message decoder and automatic trunked channel following.
• APCO-25 Phase 2 - Phase 1 control channels with automatic Phase 2 trunked channel following.
• DCS - Digital Coded Squelch (DCS) decoder for NBFM channels
• Fleetsync II - FM demodulator and decoder for ANI, Acknowledge, Status, Paging and GPS bursts
• FM/NBFM - narrow-band FM demodulator with squelch control.
• LJ1200 - FM demodulator and decoder for LoJack data bursts on 173.075 MHz in US.
• LTR-Net - FM demodulator and LTR-Net trunked radio signaling decoder
• LTR-Standard - FM demodulator and Logic Trunked Radio (LTR) trunked radio signaling decoder
• MDC-1200 - FM demodulator and decoder for MDC-1200 ANI bursts.
• MPT-1327 - FM demodulator and MPT-1327 trunked radio signaling decoder and automatic trunked channel following.
• Passport - FM demodulator and Passport trunked radio signaling decoder.
• Tait 1200 - FM demodulator and decoder for Tait CCDI protocol GPS location bursts.

Documentation

Access links in the sidebar for Getting Started, User Manual and other support documentation.

Requirements

sdrtrunk is released as a stand-alone application bundle that does not have to be installed. Simply download and unzip/untar the application and run the launch script. sdrtrunk releases include a complete Java Runtime Environment (JRE) so that you do NOT have to install Java. The bundled OpenJDK JRE is a lightweight version of the full JRE that has been stripped down to include only the minimum components needed to run the sdrtrunk application.

Operating System

sdrtrunk application bundles are available for the following 64-bit operating systems

• Linux
• OS-X
• Windows

Note: sdrtrunk, as a Java-based application, can run on any operating system supported by Java and libusb. However, other operating systems have not yet been tested.

Software Defined Radios (SDR)

Refer to the Tuners documentation for specific details on supported SDRs

• Airspy (Mini, R1, R2, Discovery HF+)
• Funcube Dongle (Pro, Plus)
• HackRF (HackRF One, Jawbreaker, RAD1O)
• RTL-2832 (E4000, FC0013, R820T, R820T2, R828D)
• SDRPlay (RSP1, RSP1A, RSP2, RSPduo, RSPdx)

Note: nomitive use of protocol names are for identification. Registered trademarks are the property of their respective owners.

This application uses some of the fantastic components available from JIDE Software.