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Overview
Marine Rescue Technologies Ltd. is pleased to present this manual covering the Sea Marshall® SARFinder maritime survivor
locating device receiver. The Sea Marshall® products are recognised as the industry standard for self managed safety alert &
locate safety systems for commercial use. In this booklet you will find a product overview and operator instructions for the
following products:
SARfinder® Self managed alert / locator safety system*
SARfinder® Transportable systems*
*AU9 Test Frequency Beacon 121.65 MHz (required for testing and training purpose, included)
Crewfix® NMEA Box.
So where do we start? ....What is a Maritime Survivor Locating Device?
A Maritime Survivor Locating Device is made up of 2 components which work together to create a Self-Managed Man over
Board Safety System. These 2 components are referred to as Alerting Units (beacons/PLBs) and Base Units (receivers).
NOTE – the approximate tracking ranges listed are taken from tests where the receiver antenna has been correctly installed at
the recommended height with the AU9 correctly fitted to an intelligent lifejacket. Wearing the AU9 around the neck will reduce
the tracking/alerting ranges to below the ranges listed herein.
Alerting Units are personal transmitters, or personal locator beacons worn by each crew member or passenger. There is no
restriction in the number of Alerting Units that can be used as part of a Sea Marshall® MSLD system. Below is an example of one
type of Sea Marshall® Alerting Unit. The following pages describe Base Units (receivers).
SARfinder® 1003 locating system (MKIII)
The Sea Marshall® SARfinder® locating system continuously monitors for an SOS signal from a Sea Marshall® Alerting Unit, the
system automatically alerts of a person in distress, automatically plotting the direction of the incident and allowing you to
rapidly locate the missing person without calling on the Search and Rescue Services. This system is used by professionals on a
daily basis to provide safety cover. Users included amongst others – River Pilots, Fishermen, Wind farm Operators, Geo-Survey
Companies, Offshore Oil & Gas operators,
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