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The original was posted on /r/sailing by /u/RauschkugeI on 2025-01-22 18:35:32+00:00.
Hello dear community,
I have been looking for a solution for some time now to wake me up if my crew goes overboard while I am asleep and there are only two of us.
My current "solution" is to equip the lifejackets with AIS MOB transmitters and connect e.g. the "AIS Life Guard MOB/SART Alarm" from Digital Yachts or the "AIS Alarm Box" from Ocean Signal to my NMEA 2000 network using an NMEA 0183 translator.
Unfortunately, I have not found any modern solutions that can be directly integrated into NMEA 2000 and the alarm on my plotter will not wake me up. Raymarine does offer external alarm transmitters for this, but they seem to alert with every insignificant message and are probably more for solo sailing. I already have two PLB3s and, in case the crew gets bigger, some MOB 1 from Ocean Signal, so I would not need to spend more money on them.
Do you think my plan will work and how have you solved it?
EDIT: Many thanks for the answers and helpful suggestions so far :)
I would also like to add that I´m aware that the first priority is to prevent going overboard. I have taken the safety precautions and measures to do this and this question serves as a precautionary measure. Even in professional sport, MOB situations occur, due to human or technical error, so I would like to have such an alarm for a little extra safety and peace of mind.