Which maintenance functions can a GMDS

Which maintenance functions can a GMDSS Radio Operator perform（）.

AThe Operator can make fine internal adjustments to the transmitter as long as the output power does not change by more than one percent
BThe Operator is responsible for ensuring that INMARSAT antennas are free of built-up soot and clear of obstacles
CAll levels of maintenance must be performed by a licensed GMDSS Radio Maintainer
DThe Operator may install an EPROM in order to ensure that the equipment continues to operate within legal constraint

参考答案

参考解析：

分类：GMDSS题库

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