Press here for SOS flash: three short, three long, three short, on the rear light.
1
VHF Channel 16Say: MAYDAY, MAYDAY, MAYDAY. Vessel name three times. Then read the position above, persons aboard, nature of distress.
2
No radio? iPhone 14 or newerDial 112 / 911. With no signal, iPhone offers Emergency SOS via satellite. Follow the on-screen pointing guide.
3
EPIRBIf the vessel carries an EPIRB, activate it. It transmits your position to rescue services on 406 MHz.
4
Stay with the vesselA boat is far easier to find than a person in the water. Life jackets on everyone.
Sirena Seafarer is an aid to navigation and distress preparation. It does not transmit a distress signal itself and never replaces EPIRB, VHF radio or certified rescue systems.
FLEET
Settings
Chart, units, sharing and account live in the iPhone app. This is that same screen, on the water off Monaco.