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SDRmm logo

SDRmm

SDRmm listens to, decodes, and records radio signals from an SDR, a network receiver, or an IQ recording.

You build a receiver by wiring nodes together in Patch view, then pin the controls you use to Rack view. An RTL-SDR and a local FM station are enough to start.

Start here

  1. Install SDRmm.
  2. Build your first receiver.
  3. Learn how nodes and wires fit together.

Find a guide

TaskGuide
Connect a radioRadios
Listen to a signalChannels
Decode dataDecoders
Save and replay signalsRecording and playback
Find where a signal comes fromDirection finding
Use a phone in the fieldPhones
Save and switch setupsWorkspaces and presets
Program a radio or measure an antennaTools
Run the radio somewhere elseDeployment
Fix a problemTroubleshooting
Work on SDRmmBuild and test

How it runs

A server talks to the radio and does all signal processing. The desktop app and the browser show the same interface on top of it. Run both on one computer, or put the server next to the antenna and connect over the network. Every connected client sees the same workspace, and a phone can join as a remote head in the field.