The difference between a class A and a class B EPIRB is that the class A EPIRB().

A . operates on both military and civilian aircraft distress frequencies B . transmits both an alerting signal and a homing signal C . must be the float free type and automatically activated D . operates with a greater output of signal power

时间:2022-09-09 23:03:16 所属题库:GMDSS题库

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