Y1-03-0242 Rev. B | ACR Electronics PRO 406, RLB-37, 2844, 2842

Category I beacons-Automatic deployment and activation

If the vessel sinks, the HydroFix™ HRU frees the beacon from the bracket, allowing it to float to the surface. Built-in sensors detect that the beacon is no longer in its bracket and when continuity is created by water between two of the top cap screws, an activation circuit is completed.

NOTE: Transmission of the 121.5 MHz and 406 MHz signals will not occur until 100 seconds after activation.

HRU releases the rod separating the front and back cover of bracket at a depth between 4-13 feet

Ejector Spring launches EPIRB from the bracket allowing it to float freely to the water surface

Y1-03-0242 Rev. B

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ACR Electronics PRO 406, RLB-37, 2844, 2842 manual Y1-03-0242 Rev. B

Contents

Owner Vessel Radio Call Sign UIN # Page Table of Contents Step ONE Registering Your Beacon What country should I register in? How do I register?Noaa Sarsat Beacon Registration Suitland Road Suitland, MD Do I need a radio license? Step TWO HOW the Beacon Works How your beacon brings help Activation switch with Witness Tab Anatomy of your beaconInternal GPS engine Switch Positions Top View Category 1 SeaShelter3 Bracket Category 2 LowPro3 Bracket Activating your beacon Y1-03-0242 Rev. B Page False alarms Turning off the beacon Y1-03-0242 Rev. B Step Three Installing the Beacon Date of Installation ExampleMounting location Page Category I bracket Category II bracket Routine beacon maintenance Battery replacementStep Four Maintaining the Beacon On a routine basis aboard ship, do Y1-03-0242 Rev. B Changing ownership or contact information Servicing the SeaShelter3 and the HydroFix HRU To install the new HRU To remove the expired HRU Self-Testing the beacon Servicing the LowPro3 Extended GPS test Appendix a Using and Testing the GPS Systems Internal GPS position systemLED indication of GPS fix Appendix B the COSPAS-SARSAT System General overviewGlobal Positioning System GPS Appendix C Technical Specifications MHz Transmitter Appendix D WARRANTY, Useful Life POLICY, Notices Limited Warranty Product Notified BodyRegulations Standards International Maritime Organization Shore Based Maintenance EuropeanRepresentative Signed on behalf of ACR Electronics Inc