Ocean Signal rescueME MOB1 Personal AIS

Ocean Signal rescueME MOB1 is a man-overboard distress beacon that simultaneously transmits on AIS (Automatic Identification System) and DSC (Digital Selective Calling) channels — alerting nearby vessels equipped with AIS displays to an exact overboard position, and transmitting a DSC distress call to VHF radios within range. The MOB1 activates automatically when submerged and is designed to be worn on a life jacket or integrated into sailing safety gear for offshore and coastal passage making.

AIS + DSC: Why Dual-Channel Transmission Matters

A single-channel EPIRB or PLB sends to satellite networks that relay to coast guard via a monitoring station — rescue response typically takes 20-60 minutes from activation. The MOB1's AIS channel immediately appears as a distress icon on every AIS display within a 5-mile radius — any commercial vessel, ferry, or AIS-equipped sailboat sees the overboard position in real time. DSC simultaneously alerts all VHF radio users within range. In active shipping lanes and busy coastal waters, nearby vessel response can be significantly faster than satellite-relayed coast guard dispatch.

• AIS transmission — appears on nearby vessel AIS displays immediately
• DSC distress call — alerts VHF radio users within range simultaneously
• Automatic activation — triggers when submerged, no manual action required
• 5-year battery life — no annual replacement required for ready status
• Compact wearable form — attaches to life jacket or PFD harness

Registration and Maintenance

Register the MOB1 with your national maritime authority (in the US, with NOAA) to link the beacon to your vessel and contact information — this enables rescue coordination centers to identify the vessel and crew from the beacon signal. Test the device using the built-in self-test function before offshore passages. The 5-year battery provides reliable standby life, but replace the battery before expiration to maintain compliance and reliability for offshore use.