Terrestrial radiocommunication

The 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: 1150