audio confirmed working, quality traced to signal strength not firmware
Live retest confirms both fixes from f9f3e58 on real hardware: the DAB
service list now returns 22 correctly-decoded real station labels
(was empty), and playing a selected service produces actual crackly
audio rather than silence — the first tried service (CNR 7dB) was
fully soft-muted, the second (CNR 8dB) was audible but degraded,
matching DAB's FIC-vs-audio-subchannel robustness gap rather than a
code defect. Antenna/front-end calibration promoted to the primary
remaining TODO for both bands.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0178rASQ6ZETPMUamvpoR2KR