TrunkRecorder/trunk-recorder

Health v2 · maintenance only

Adoption not part of the score

1132 stars · 257 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Trunk Recorder is a C++ application that records calls from trunked and conventional radio systems (P25, SmartNet, DMR, analog) using one or more software-defined radios. It uses GNU Radio for RF signal processing and can record multiple radio systems simultaneously, with options to upload recordings to sharing platforms like OpenMHz.

Use cases

• record police and fire scanner calls from a P25 trunked radio system
• capture SmartNet trunked radio traffic with an RTL-SDR dongle
• record conventional analog and DMR radio channels
• archive radio calls and upload them to OpenMHz or Broadcastify
• build a Raspberry Pi based radio call recording station
• monitor multiple talkgroups across several radio systems at once

When to choose

• you have SDR hardware (RTL-SDR, HackRF, Airspy, etc.) and want to record trunked P25 or SmartNet systems
• you need to record multiple radio systems or talkgroups simultaneously
• you want a self-hosted, scriptable recorder that runs on Linux, Raspberry Pi, or macOS
• you want to feed recordings to sharing platforms like OpenMHz, Trunk Player, or Broadcastify Calls

When to avoid

• you need a graphical scanner interface rather than a headless recorder
• you want to decode encrypted radio traffic
• you are on Windows without Docker or WSL
• you need support for radio protocols outside P25, SmartNet, DMR, and analog

Facets

application · maturity active

audio-processing streaming cli embedded-systems media hardware cli sdr software-defined-radio p25 smartnet gnuradio radio-scanner rtl-sdr trunked-radio police-scanner audio-recording automation linux macos docker

Member repositories

For agents

markdown · JSON · MCP: product_card(name="TrunkRecorder/trunk-recorder")