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