GMDSS通信业务课件上海1章节幻灯片.pptVIP

* Produced by Tangxuhong * 2.5.2 MF/HF RADIO INSTALLATIONS (1) An MF/HF radio installation shall be capable of transmitting and receiving distress and safety signals on (a) all frequencies in the MF band from 1 605 kHz to 4 000 kHz inclusive that are specifically assigned to the maritime mobile service; (b) all frequencies in the HF band from 4 001 kHz to 27 500 kHz inclusive that are specifically assigned to the maritime mobile service; and (c) any other frequencies that are specifically assigned for the transmission of maritime safety information in the area in which the ship is navigating. * Produced by Tangxuhong * An MF/HF radio installation shall be capable of maintaining a DSC continuous watch on (a) frequency 2 187.5 kHz; (b) frequency 8 414.5 kHz; and (c) at least one of the following DSC distress and safety frequencies, namely, (i) 4 207.5 kHz, (ii) 6 312 kHz, (iii) 12 577 kHz, or (iv) 16 804.5 kHz. * Produced by Tangxuhong * 2.5.4 INMARSAT SHIP EARTH STATION (1) An INMARSAT ship earth station shall be capable of (a) transmitting and receiving (i) distress and safety signals , (ii) general communications, using voice communications ; and (b) maintaining a continuous watch for shore-to-ship distress alerts, including those distress signals that are directed to specific geographical areas. * Produced by Tangxuhong * 2.5.5 The reception of MSI A radio operator shall 8 earlier, before a ship undertakes a voyage, keep on watch: A1， A2：518 kHz NAVTEX A3 ： INMARSAT－C EGC A4 : HF NBDP Receive meteorological facsimile at least once. Receive radio time signal daily * Produced by Tangxuhong * 第三节 船舶电台行政管理 6．常规通信的值守 根据船舶航行海域和地理位置，将DSC扫描接收机预置在船籍港、目的港、离开港和经转岸台用于DSC的相关频率上保持连续守听。 按时守听通报（话）表，除收听船籍港岸台通报（话）表外，还要注意收听离开港、目的港岸台和经转电报岸台的通报（话）表。 按时接收预定岸台用MF/HF频率以SFEC方式播发的通电。 7．每天收听报时信号一次，并校准驾驶台的天文钟和电台时钟。 8．按规定做好蓄电池充放电及保养工作；定期检查、维护各种收发天线，并按计划进行通导设备的维护工作。 * Produced by Tangxuhong * 2.6 Communication charge 2.6.1 ACCOUNTING AUTHORITY