13B2 B
 Proper watchkeeping includes the following:
A. Understanding normal operational indicators, setting the DSC scanner frequencies to minimize alarms, maintaining a proper log.
B. Maintaining a proper GMDSS radio station log, understanding normal operational indicators, responding to and comprehending alarms.
C. Responding to and comprehending alarms, logging out of Inmarsat-C terminals while at sea, maintaining a proper GMDSS radio station log.
D. Maintaining a proper GMDSS radio station log, setting the DSC scanner frequencies to minimize alarms, logging out of Inmarsat-C terminals while at sea.
