5 Commits

Author	SHA1	Message	Date
Smittix	645b3b8632	fix: harden DSC decoder against noise-induced false decodes ... Stricter dot pattern detection (200 bits/100 alternations), bounded phasing strip (max 7), symbol check bit parity validation, EOS minimum position check, strict MMSI decode (reject out-of-range symbols), format-aware telecommand extraction, and expanded critical category detection. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>	2026-02-26 22:52:49 +00:00
Smittix	8a46293e5c	Fix DSC decoder for ITU-R M.493 compliance ... Correct modulation parameters (1200 bps, 2100/1300 Hz tones), replace invented format codes with the six ITU-defined specifiers {102, 112, 114, 116, 120, 123}, accept all valid EOS symbols (117, 122, 127), add parser validation (format, MMSI, raw field, telecommand range), and fix truthiness bugs that dropped zero-valued fields. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>	2026-02-25 22:02:08 +00:00
Smittix	d6f10d29ca	fix: Correct DSC decoder phasing sequence handling, MMSI and position decoding ... Strip ITU-R M.493 phasing symbols (120-126) after dot pattern sync before decoding message content. Fix MMSI BCD digit trimming direction and correct test symbol encodings for position and MMSI edge cases.	2026-02-15 09:58:05 +00:00
Smittix	1e2810b85c	fix: Correct octal literal in DSC position decoder ... Change `00` to `0` in quadrant check to avoid confusion with octal syntax. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-01-25 13:05:14 +00:00
Marc	b4d3e65a3d	feat: Add VHF DSC Channel 70 monitoring and decoding ... - Implement DSC message decoding (Distress, Urgency, Safety, Routine) - Add MMSI country identification via MID lookup - Integrate position extraction and map markers for distress alerts - Implement device conflict detection to prevent SDR collisions with AIS - Add permanent storage for critical alerts and visual UI overlays	2026-01-25 13:05:14 +00:00