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1.7.2 AU9 worn around the neck – the unit can be worn underneath a jacket (ensure water can
freely reach the body to allow automatic activation). NOTE – the tracking alarm activation range of
the sytem is reduced when the transmitter is worn around the neck due to absorption of signal by
the body and the reduced height of the antenna above the water line.
Fig. 16
1.7.3 AU9 unit fitted into a lifejacket with service window; Lifejacket model shown –
Mullion Mariner ‘SOS’ 275N SOLAS twin chamber self righting.
Fig. 17
