JRC JQE-103 -, Operation Manual

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CHAPTER 1. INTRODUCTION
1.1 System Outline
Satellite EPIRB is a beacon installed onto the ship under GMDSS rule. Should the ship sink, the Satellite
EPIRB will automatically float on the water, emit 406.028 MHz and 121. 5 MHz distress beacon for over 48 hours.
The 406.028 MHz beacon is received by LEOSAR of the COSPAS/SARSAT system, and distress position is
measured by Doppler effect between moving speed of the satellite and rotation of the earth.
This emergency information (i.e. position data and MMSI) is relayed to the Local User Terminal (LUT).
The emergency information is also relayed to the Rescue Coordination Centers (RCC) for SAR activity in all over
the world through Mission Control Center (MCC).
The 121.5 MHz homing beacon is used to detect the direction in a short distance so that the emergency
can easily be searched from an aircraft and ship at the scene.