Smittix 026337a350 Add real-time WebSocket waterfall with I/Q capture and server-side FFT ...

Replace the batch rtl_power SSE pipeline with continuous I/Q streaming
via WebSocket for smooth ~25fps waterfall display. The server captures
raw I/Q samples (rtl_sdr/rx_sdr), computes Hann-windowed FFT, and
sends compact binary frames (1035 bytes vs ~15KB JSON, 93% reduction).
Client falls back to existing SSE path if WebSocket is unavailable.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

2026-02-08 12:37:50 +00:00

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