Long Range Certificate Course

Normally the terminal will be connected to an external GPS. This is very important because this position will be used by the Terminal to calculate the present NAVAREA in which the ship will be at that moment. Only the SafetyNET EGC messages of the present NAVAREA will be printed by the terminal. There is an option to select an additional NAVAREA, and this will be used when entering a new NAVAREA within 24 hours. There is also a possibility within the EGC system to transmit messages to a circular or rectangular area, even when this area covers more than one NAVAREA. In this case all the satellites covering this area will transmit this call, and in this case the terminal will also print the message when it is within the limits of the area indicated .


When there is a failure in the automatic position update you should enter the position manually. This position is important in relation to EGC messages, because when there is no recent position update the terminal will indicate that the position is invalid. When the position is invalid, the terminal will show/print all the EGC SafetyNET messages that are transmitted by the satellite you are logged on to, even if they are for other NAVAREAs than your present NAVAREA. This will give you so much irrelevant information that there is a chance of missing relevant information.

This manual position update should be done at least once every four hours.