LED Lantern with Integrated GPS Synchronisation
Sealite Pty Ltd has developed an internal synchronisation system for the SL125 5 & 6 nautical mile range of LED lanterns.
The system is built within the unit, and requires no external wiring or operator intervention. If lanterns are set to the same flash pattern, their flash rates will synchronise within a few minutes of operation.
The Sealite system achieves synchronisation through each lantern taking readings from GPS pulses coming from overhead satellites, and automatically configuring the internal clock of the SL125 against these readings.
An advantage of the GPS-based system is that unlike radio-systems, the GPS is not limited by range or line-of-sight. Suing overhead satellites, two SL125 units set to the same flash pattern will synchronise anywhere in the world.
