SAILOR 4065 EPIRB – GNSS

MEOSAR Compatible for enhanced detection and location performance, the SAILOR 4065 multi frequency range emergency positioning indicating radio beacons are the world’s most powerful EPIRBS.

The seas of the world can be calm one minute and filled with total unpredictability the next. The introduction of Emergency Positioning Indicating Radio Beacons (EPIRB’s) have been designed for the purpose to save lives. SAILOR 406 MHz EPIRBs work with the Cospas-Sarsat polar orbiting satellite system, giving true global coverage.

There is an alert delay of about 45 minutes dependant on when the satellites come into view on the horizon with the current LEOSAR and GEOSAR constellations.With the new MEOSAR constellation which is currently being installed, the goal will be to get instantaneous detection. The MEOSAR constellation is up and running with the full system working by 2021.

The messages sent from the beacon is a coded message which allows the receiving rescue authorities to identify the vessel the beacon belongs too. The additional information attached to the vessel like the emergency contact information can then be picked up via the registered information.

This will allow the rescue authorities to get in touch with the relevant parties to determine if the alert was false or indeed actual. Most EPIRBs include a 121.5 MHz frequency which is used for “homing” purposes. When the rescue services are in the region, this frequency allows them to determine the direction on the signal.

Understanding the MEOSAR Ecosystem MEOSAR Improvements

Better Accuracy, Timeliness and Reliability

In the next few years Cospas Sarsat will be rolling out a new search and rescue infrastructure known as MEOSAR. When fully deployed the aim is: Determine beacon location within 5km, 95% of the time, within 10 minutes.

• 72 MEOSAR satellites positioned at Medium Earth Orbit altitude
• Near instantaneous beacon signal detection using bent pipe technology – average 46 minutes faster compared to LEOSAR
• Reduced response times with multiple signal bursts to improve speed and accuracy of location calculation
• Close to 100% reliability due to multiple antenna systems and MEOLUT networking
• When fully operational next generation beacons will also have a return link signal through Galileo satellites
• Acknowledge signal receipt
• Control beacon – remotely activate, turn off or confirm false alarm