The quality of EGC messages is()affected by the position of the ship, the time of reception and climatic conditions.
Ships sailing in()are able to receive and print out EGC messages.
Ships sailing in()are able to receive and print out EGC messages.
EGC is a()part of INMARSAT-C.
INMARSAT-C EGC的SafetyNET报文的区域地址不可以是()
The quality of EGC message is()affected by the position of the ship, the time of reception and climatic condition.
If EGC receiver shares a same antenna with Inmarsat SES, it means that it can receive MSI().
使用INMARSAT-C EGC的FleetNET业务的MES必须()
当忙于接收正常的电文是,若有EGC信息播送,则第二类C站()接收电文.
从EGC接收机上可以获取到船舶的船位信息,请问输入船位信息可通过哪些方法完成?()