# ptrkrysik/gr-gsm

Gnuradio blocks and tools for receiving GSM transmissions

Repository: https://github.com/ptrkrysik/gr-gsm
Canonical: https://ross.abutalabs.com/products/gr-gsm
Language: C++
License: NOASSERTION
License Family: other
Last push: 2025-03-10T11:49:09+00:00

## Health v2 (maintenance only)
Score: 37/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 10, release rhythm 35, longevity 100
- inputs: {"age_days": 4577, "days_push": 541, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1494, forks 469 (observed 2026-08-28T04:04:53.042459+00:00)

## What it is
A set of GNU Radio blocks and tools for receiving and decoding GSM transmissions using software-defined radios. It is based on the Airprobe project's gsm-receiver and supports demultiplexing, decoding, and decryption of GSM channels.

## Use cases
- sniff GSM traffic with an SDR
- decode GSM bursts and channels
- analyze GSM security and ciphers
- capture GSM voice channel data
- research mobile network protocols

## When to choose
- you use GNU Radio with an SDR and need GSM reception
- you research GSM protocol security
- you want to demodulate and decode GSM signals

## When to avoid
- you need modern 4G/5G signal analysis
- you want a turnkey GSM scanner without SDR knowledge
- you need a maintained production tool rather than a research project

## Facets
- artifact type: library
- maturity: maintenance
- function: parser, security
- domain: security, reverse-engineering
- platform: cpp, python
- tags: gnuradio, gsm, sdr, radio-receiver, airprobe, rtl-sdr, signal-processing, telecommunications, linux

## Member repositories
- ptrkrysik/gr-gsm (main) score 37

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:53.042459+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 2026-08-30T04:33:24.207250+00:00, confidence not recorded.
  - readme: https://github.com/ptrkrysik/gr-gsm (fetched 2026-08-28T04:04:53.042459+00:00, sha 20f5c246d9b7)
- Data as of 2026-08-30T08:39:29.467469+00:00.