Along with periodic updates to allow rider tracking, the SPOT Tracker has emergency notification capability as well. We will require emergency contact details for each rider and pursuant to Rule 5, you agree to cover costs, if incurred, in any subsequent rescue. This is standard NZ Search and Rescue policy. Note: in a genuine emergency cost recovery is not the norm.
SPOT Trackers differ from PLBs or EPIRBs. The emergency notification is sent directly to a Search and Rescue Service, however the SPOT also provides additional contact notification options (buttons).
The SOS button is highest priority (equivalent to a 111 call). However you can cancel a message if you feel the situation is not as bad as first thought and send an OK message. An EPIRB however cannot be cancelled (at least until the helicopter arrives). Both have their advantages but for the purposes of the Brevet the SPOT Tracker is sufficient if you are aware of it's limitations.