One-tap MOB button that marks position, sounds alarm, and provides bearing back.
- Dedicated MOB button (prominent, gesture-guarded to prevent accidental trigger)
- Captures GPS position, timestamp, heading at instant of press
- Audible alarm (loud, overrides silent mode if permitted)
- Persistent bearing + distance + ETA back to MOB position
- MOB marker on chart (cannot be accidentally deleted)
- Publish to Signal K notifications API when connected
- Log to track / logbook
- Reference: OpenCPN "MOB alarm with tracking"
One-tap MOB button that marks position, sounds alarm, and provides bearing back.