Activating SOS on a satellite communicator initiates a coordinated rescue response. Knowing the process before an emergency ensures the activation is handled correctly when it matters most.
- 1
Activate the SOS
Most satellite communicators require holding the SOS button for 3-5 seconds to prevent accidental activation. A confirmation prompt on the device screen usually follows. Confirm the activation deliberately. On phone-dependent devices, the SOS function may be in the app — know where it is before the trip.
- 2
Move to open sky for GPS acquisition
GPS coordinates are embedded in the distress signal. Dense tree cover, canyon walls, and building overhangs slow GPS acquisition. Moving a few feet to a more open position can improve position accuracy significantly. The first transmitted position fix may be imprecise; subsequent transmissions update the location as GPS improves.
- 3
Stay with the device
The satellite communicator transmits location continuously after SOS activation. Moving significantly from the activation point means rescue services may search the wrong area. Keep the device powered on, with antenna pointing to open sky, and stay at or very near the activation location unless survival requires movement.
- 4
Use two-way messaging to describe the emergency
If the device supports two-way messaging (Garmin inReach, Zoleo), compose a brief message: number of people, nature of injuries, whether anyone is immediately life-threatened, and any access or approach information rescue teams should know. A monitoring center agent will attempt to contact via the device.
- 5
Prepare in advance — before the trip
Register emergency contacts in the device or app. Update the profile with current medical information (allergies, conditions, medications). Share the trip plan with at least one person who knows when to expect contact and when to call rescue services independently.