BatchDrake/SigDigger
Qt-based digital signal analyzer, using Suscan core and Sigutils DSP library observed · 2026-08-28
Health v2 · maintenance only
53/100
- Activity 67
- Release rhythm 8
- Longevity 100
Flags: prerelease_only
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 2577
- days_rel: 512
- days_push: 203
- n_releases_24m: 1
Adoption not part of the score
2876 stars · 305 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
SigDigger is a free Qt-based digital signal analyzer for analyzing unknown radio signals with software-defined radio devices via SoapySDR. It provides real-time spectrum analysis, waterfall display, adjustable demodulation of FSK/PSK/ASK signals, analog voice listening, and baseband recording using its own Sigutils DSP library and Suscan analysis core.
Use cases
- analyze unknown radio signals from an SDR dongle
- demodulate FSK PSK and ASK signals in real time
- view spectrum and waterfall of RF signals
- record baseband IQ data for offline replay analysis
- listen to analog voice channels like AM FM SSB
- decode analog video from radio signals
- analyze bursty transmissions and capture symbols
When to choose
- you want a free GUI alternative to Gqrx with deeper signal inspection features
- you need to reverse-engineer unknown digital signals with adjustable demodulators
- you use SoapySDR-compatible SDR hardware on Linux, macOS or Windows
- you want real-time analysis without depending on GNU Radio
When to avoid
- you need a scriptable or headless DSP pipeline rather than a GUI tool
- you want GNU Radio flowgraph-based processing or its ecosystem of blocks
- you need production-grade signal intelligence workflows with certified accuracy
- you require support for non-x86-64 architectures, which is still in progress
Facets
application · maturity active
gui audio-processing image-processing plugin-system embedded-systems developer-tools windows cpp sdr dsp radio-signal-analysis soapysdr demodulation spectrum-analyzer qt ham-radio signal-decoding real-time linux macos desktop
2 sources
- readme: https://github.com/BatchDrake/SigDigger · fetched 2026-08-28 · 68a9f75224b9
- homepage: https://batchdrake.github.io/SigDigger/ · fetched 2026-08-29 · 8ac816b2ad5d
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| BatchDrake/SigDigger | main | 53 |
For agents
markdown · JSON · MCP: product_card(name="BatchDrake/SigDigger")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem