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Terrestrial radiocommunicationThe distress alert may be sent using digital selective calling (DSC) on one or more of the following frequencies which are dedicated exclusively for the purpose:
The distress alert should indicate: • on which frequency the follow-up distress message will be transmitted; and • the mode of transmission (telephony or telex). The frequencies that should be used for the follow-up distress message: Radio Telephone (R/T) Ch.16VHF 2182 kHz 4125kHz 6215 kHz 8291 kHz 12290kHz 16420 kHz Radio Telex 2174.5kHz 4177.5 kHz 6268 kHz 8376.5 kHz 12520 kHz 16695kHz Satellite radiocommunication The distress alert by satellite should be transmitted, with absolute priority, to a Rescue Co-ordination Centre (RCC).
Guidance on steering gear test routines Manual steering positions After prolonged use of the autopilot, and before entering coastal waters, test the steering gear at al the manual steering positions on the bridge. Multiple steering gear power units In coastal waters use more than one steering gear power unit when such units are capable of simultaneous operation. Before departure from port Within 12 hours before departure, check and test the steering gear including, as applicable, the operation of the folowing: • the main steering gear; • the auxiliary steering gear; • the remote steering control systems; • the main steering position on the bridge; • the emergency power supply; • the rudder angle indicators in relation to actual rudder position; • the remote steering gear control system power failure alarms; • the steering gear power unit failure alarms; and • automatic isolating arrangements and other automatic equipment. Checks and tests Checks and tests should include: • the ful rudder movement according to the required capabilities of the steering gear; • the timing of rudder movement from hardover-to-hardover to ensure consistency with previous tests; • a visual inspection of the steering gear and its connecting linkage; and • the operation of the means of communication between the bridge and the steering gear compartment. Date: 2016-04-22; view: 1271
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