sigdigger ☆

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Description:
Qt-based digital signal analyzer

Type: Cask | Latest Version: 0.3.0@0 | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Developer tools

Tags: sdr signal-processing radio qt analyzer

Install: brew install --cask sigdigger

About:
SigDigger is a versatile, Qt-based digital signal analyzer designed for real-time signal inspection and spectrum analysis. It connects to various data sources like SDR hardware and I/Q files, providing a powerful interface for visualizing and demodulating signals. Its main value is offering a user-friendly, cross-platform GUI for advanced RF signal exploration.

Key Features:

Real-time spectrum analysis and waterfall display
Support for multiple data sources (SDR, I/Q files)
Built-in demodulators (AM, FM, SSB)
Inspector panel for detailed signal examination
Qt-based GUI for cross-platform compatibility

Use Cases:

Radio astronomy signal analysis
General-purpose SDR signal monitoring and demodulation
Educational tool for learning about digital signal processing

Alternatives:

GQRX – GQRX is a simpler, more focused receiver, while SigDigger offers more advanced analysis and inspector tools.
SDR# – SDR# is a Windows-only, plugin-based application, whereas SigDigger is cross-platform and open-source.

Version History

Detected	Version	Rev	Change	Commit
Jun 30, 2024 12:02pm	0.3.0	0	VERSION_BUMP	22b8aa71
Jul 5, 2022 11:27pm	0.3.0	0	VERSION_BUMP	927ad09a