SECURITY Signal 483
Open source SDR app sdr-- combines patchable signal graph with Rust DSP and browser UI
sdr-- is an open source software-defined radio application with a visual patchable signal graph, a Rust-based DSP server, and a React interface that runs in a desktop window or browser.
The server exposes REST, WebSocket, MCP, UDP, and TCP interfaces with no authentication by default, making network deployment a security consideration that requires explicit hardening. For engineers building radio monitoring or analysis pipelines, the ability to export IQ data and forward decoded events to webhooks, Matrix, or MQTT makes it a potential integration component.
Written by elseif from the cluster below · every claim links back to a sourceThe three things worth knowing
The Rust DSP server and React UI can run on separate machines, connecting over the network, but the server has no authentication by default.
sdr-- supports coherent receiver operations including direction finding, beamforming, and passive radar, beyond typical hobbyist SDR decoding.
Most decoders have been tested against generated IQ fixtures rather than live on-air signals, and the channel catalog documents each mode's evidence and limitations.
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