# EliasOenal/multimon-ng

Repository: https://github.com/EliasOenal/multimon-ng
Canonical: https://ross.abutalabs.com/products/multimon-ng
Language: C
License: GPL-2.0
License Family: copyleft
Last push: 2026-07-27T06:21:20+00:00

## Health v2 (maintenance only)
Score: 84/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 94, release rhythm 63, longevity 100
- inputs: {"age_days": 5219, "days_push": 37, "days_rel": 37, "gap_med": 261.0, "n_releases_24m": 3}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1133, forks 232 (observed 2026-08-28T04:03:42.909673+00:00)

## What it is
multimon-ng is a command-line decoder for digital transmission modes such as POCSAG, FLEX, AFSK/FSK, DTMF, ZVEI, EAS, and Morse code, succeeding the original multimon. It accepts live audio (PulseAudio), WAV files, or piped raw samples from tools like rtl_fm and sox.

## Use cases
- decode POCSAG pager messages from an RTL-SDR dongle
- decode FLEX pager traffic from a wav recording
- demodulate AFSK1200 data from radio audio
- decode DTMF tones from an audio file
- decode EAS emergency alert broadcasts
- pipe rtl_fm output into a digital mode decoder
- decode Morse code (CW) from audio

## When to choose
- you need to decode pager, FSK, or tone signaling protocols from SDR or recorded audio
- you want a scriptable CLI decoder that fits into pipelines with rtl_fm or sox
- you need broad protocol coverage including POCSAG, FLEX, DTMF, and EAS in one tool

## When to avoid
- you need a GUI-based signal analysis suite
- you want to decode modern digital voice modes like DMR, P25, or D-STAR
- you need software-defined radio reception itself rather than decoding of demodulated audio

## Facets
- artifact type: cli-tool
- maturity: active
- function: audio-processing, parser, cli
- domain: developer-tools
- platform: windows, bsd, cli, cross-platform
- tags: sdr, pager-decoding, pocsag, flex, afsk, dtmf, morse-code, rtl-sdr, digital-modes, signal-decoder, radio, signal-processing, command-line, linux, macos

## Member repositories
- EliasOenal/multimon-ng (main) score 84

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:42.909673+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 2026-08-30T06:37:23.776334+00:00, confidence not recorded.
  - readme: https://github.com/EliasOenal/multimon-ng (fetched 2026-08-28T04:03:42.909673+00:00, sha f2206c8cf38c)
- Data as of 2026-08-30T08:39:29.467469+00:00.