Newspicel / sdrmm

# SDR--
A software-defined radio application for listening, decoding, and recording. Connect radios,
channels, and displays in **Patch** view, then pin your everyday controls to **Rack** view.
Run the desktop app with a local SDR, or place the server near your antenna and connect through
a browser. Both use the same receiver engine and interface.
Read the docs. Questions or ideas? Join the
Discord.
## Install
Download a desktop installer or portable server from
GitHub Releases, or
build it yourself.
The installation guide
covers macOS, Windows, Linux, Homebrew, APT, DNF, Nix, and Docker.
## Start with an RTL-SDR
1. Plug in the RTL-SDR and pick it on the **Device** node. Set the rate to **2.4 MS/s**.
2. Add a **WFM** channel from **+ Node** and set it to a local FM station.
3. Wire Device `iq` to WFM `iq`, and WFM `audio` to the Speaker.
4. Start the Speaker. Press `p` on a node to pin it to the Rack.
Your first receiver walks
through it. Radios covers other hardware.
## What it supports
- **Listening:** AM, NFM, WFM with stereo and RDS, SSB, digital voice
 (DMR, P25, NXDN, D-STAR, FreeDV, M17), and noise reduction.
- **Decoding:** aircraft, ships, pagers, amateur modes, weather satellites, radiosondes, DAB, DRM,
 and DVB.
- **Displays:** spectrum, waterfalls, maps, decoded messages, and video.
- **Recording:** device IQ, channel baseband, audio, and each call,
 with a time machine and SigMF playback.
- **Finding signals:** scanning, signal identification, band monitoring, and transmitter
 hunting.
- **Arrays:** coherent arrays,
 direction finding, and
 passive radar.
- **Location:** GPS, satellite tracking,
 and a propagation map.
- **Phones:** iPhone and Android remote with CarPlay and Android Auto.
- **Tools:** antenna calculator, NanoVNA, and radio programmer.
- **Automation:** REST, WebSocket, and MCP, plus
 network IQ, webhooks, MQTT, and databases.
## Screenshots
 Spectrum and waterfall Rack view 
 FT8 decoding Signal identification 
 Aircraft positions Ship positions 
 Slow-scan television Amateur television 
 Pager messages Broadcast FM 
## Thanks
KrakenRF, Airspy,
AntSDR, FUNcube Dongle and
Aaronia provided hardware for development and testing.
Making a radio? Write to hi@jhaag.me to get it supported and tested.
## License
Copyright (C) 2026 Julian Haag.
Licensed under the GNU Affero General Public License, version 3 or later.
Need a commercial license or custom work? Write to hi@jhaag.me.
Third-party notices and license texts are also available in the app's
About panel.