The Class A EPIRB transmits a signal().
A Class S EPIRB is a().
CATEGORY A EPIRB’s transmit on frequencies that are monitored by().
On offshore drilling units,each EPIRB or SART must be tested once every().
406MHZ EPIRB具有()
1.6GHzS-EPIRB带有9GHzSART的目的是()
406MHZ EPIRB 121.5MHZ是用来()
EPIRB的识别码应选用()
应预先存储在406MHz EPIRB中的信息是()
Each Class A EPIRB shall be stowed in a manner which will permit().