GMDSS通信英语讲解.ppt

GMDSS通信英语;GMDSS 英语阅读 考试大纲;GMDSS 英语阅读 考试大纲;GMDSS 英语阅读 考试大纲;GMDSS 英语阅读 考试大纲;GMDSS 英语阅读 考试大纲;GMDSS 英语阅读 考试题型;Chapter 1 The Basic Knowledge of the GMDSS;Lesson 1 The GMDSS Components and Their Function;1.The Basic Concept of the GMDSS GMDSS is that SAR authorities ashore, as well as shipping in the immediately vicinity of the ship in distress ,also provides for urgency and safety communications and the promulgation of MSI--------navigational and meteorogical warning ,foreccasts and other urgent safety information to the ships . ;2. Navigational sea areas Sea area A1 An area within the radiotelephone coverage of at least one VHF coast station in which continuous DSC alerting is available ,;2. Navigational sea areas Sea area A2 An area,excluding sea area A1,within the radiotelephone coverage of at least one MF coast station in which continuous DSC alerting is available ,;2. Navigational sea areas Sea area A3 An area,excluding sea areas A1 and A2,within the coverage of an Inmarsat geostationary satellite in which continuous alerting is available.;2. Navigational sea areas Sea area A4 An area outside sea areas A1 ,A2 and A3.;3. Communication Function of GMDSS (1) Alerting a.Ship to shore distress alerts -by INMARSAT SES, DSC, EPIRB b.Ship to ship alerts -by MFand VHF DSC. c.Shore to Ship Distress Alert Relay -will be addressed to all ships, to selected ships or to an individual ship, usually by CES or coast station. ;3. Communication Function of GMDSS (2) SAR coordinating communication The coordination of ships and aircraft participating in a SAR operation ,including communication between RCCs and on -scene coordinator (OSC);3. Communication Function of GMDSS (3) on scene communications This communications between the ship in distress and assisting units ,provide the assistance to the ship or the rescu