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LONG BEACH FIRE DEPARTMENT

GlobalFix PRO 406 MHz RLB-37

FIREBOAT TRAINING MANUAL 1.1:

Operation

1. EPIRB is activated either automatically via hydrostatic release or manually by

crew members.

2. Beacon transmits a 406 MHz emergency message containing your Unique

Identifier Number (UIN) to the LEOSAR (polar orbiting) and GEOSAR*

(geostationary) satellite systems.

3. The satellites relay the 406 MHz emergency message to a ground station called

the Local User Terminal (LUT). The LUT calculates the location of the signal by

measuring the Doppler shift caused by the relative movement between the satellite

and the beacon and forwards the location to the Mission Control Center (MCC).

4. The MCC continues to receive information from additional satellite passes and

further refines the beacon position (2.3 nm search radius). An alert message is

generated that is combined with the registration information from the database and

is forwarded to the appropriate Rescue Coordination Center (RCC).

5. The RCC makes contact with the persons listed in the database to verify the

existence of an emergency and gathers additional information about the beacon

users. The RCC will dispatch the closest, capable Search and Rescue (SAR) forces.

6. Local SAR forces launch a rescue mission and use the 121.5 MHz homing

signal to pinpoint the beacon.

LBFD MARINE DIVISION

Chapter # Page #

DECEMBER 2015