# DSheirer/sdrtrunk

A cross-platform java application for decoding, monitoring, recording and streaming trunked mobile and related radio protocols using Software Defined Radios (SDR).  Website:

Repository: https://github.com/DSheirer/sdrtrunk
Canonical: https://ross.abutalabs.com/products/sdrtrunk
Language: Java
License: GPL-3.0
License Family: copyleft
Last push: 2026-08-01T12:26:06+00:00

## Health v2 (maintenance only)
Score: 66/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 95, release rhythm 8, longevity 100
- inputs: {"age_days": 4027, "days_push": 32, "days_rel": 638, "gap_med": null, "n_releases_24m": 1}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2168, forks 356 (observed 2026-08-28T04:06:21.525625+00:00)

## What it is
sdrtrunk is a cross-platform Java application for decoding, monitoring, recording, and streaming trunked mobile and related radio protocols using Software Defined Radios (SDR). It provides a GUI for tuning, decoding digital voice protocols like P25 and DMR, and streaming audio.

## Use cases
- decode trunked radio traffic with an SDR dongle
- monitor and record P25 or DMR digital voice channels
- stream decoded radio audio to an audio server
- follow trunked radio talkgroups automatically
- log radio calls and channel activity
- build a software-based police/fire scanner

## When to choose
- you have an SDR tuner (RTL-SDR, etc.) and want a ready-made GUI scanner application
- you need to decode trunked digital radio protocols like P25 Phase I/II or DMR
- you want cross-platform support on Windows, Linux, or macOS without writing code

## When to avoid
- you need a command-line-only or headless decoding pipeline
- you want to decode analog-only signals with no digital protocol support
- you need real-time low-latency signal analysis or spectrum research tools

## Facets
- artifact type: application
- maturity: active
- function: audio-processing, gui, streaming
- domain: media, cross-platform, developer-tools
- platform: windows, cross-platform, jvm
- tags: sdr, software-defined-radio, radio-scanner, trunked-radio, signal-decoding, p25, dmr, recording, linux, macos

## Member repositories
- DSheirer/sdrtrunk (main) score 66

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:21.525625+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:49:29.141754+00:00, confidence not recorded.
  - readme: https://github.com/DSheirer/sdrtrunk (fetched 2026-08-28T04:06:21.525625+00:00, sha a9dea853e672)
- Data as of 2026-08-30T08:39:29.467469+00:00.