Go-based FM stereo transmitter with RDS, Windows-first and cross-platform
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1.1KB

Changelog

v0.6.0-pre

Hardware integration: SoapySDR CGO binding, IQ resampling, TX CLI mode.

Added

  • CGO SoapySDR native driver (internal/platform/soapysdr/native.go)
    • Device enumerate, open, configure (frequency, gain, sample rate)
    • TX stream setup with CF32 format
    • writeStream with MTU-chunking and timeout
    • Activate/deactivate/close stream lifecycle
    • Build-tagged: //go:build soapy
  • Stub driver for non-CGO builds (internal/platform/soapysdr/stub.go)
  • soapysdr.Available() / soapysdr.Enumerate() API
  • IQ resampler (dsp.ResampleIQ) — composite→device rate via linear interpolation
  • CLI flags: --tx, --tx-auto-start, --list-devices
  • Signal handling (SIGINT/SIGTERM) for clean shutdown in TX mode
  • txBridge adapter connecting Engine to control plane TXController
  • PlutoSDR config example (docs/config.plutosdr.json)
  • Engine now resamples IQ to device rate when rates differ

Build

  • Without hardware: go build ./cmd/fmrtx
  • With SoapySDR: go build -tags soapy ./cmd/fmrtx

v0.5.0-pre

[previous entries]