Question 1-5A6

There is no general regulatory requirement for all vessels to log *every* safety communication received on VHF, making statement A false. While certain critical events, such as GMDSS Digital Selective Calling (DSC) distress alerts received by a watchkeeping station, must be logged, passively hearing a general safety broadcast or conversation does not universally necessitate a log entry. Conversely, statements B, C, and D describe common or mandatory log entries for stations with specific logging requirements. Required equipment tests (B), such as daily or weekly GMDSS checks, must be recorded to ensure operational readiness. Radio operators on watchkeeping vessels (C) are required to log their start and end times to maintain accountability. For vessels maintaining a radio log, the vessel's daily position (D) is a standard entry, often crucial for navigation and safety records, particularly for GMDSS vessels.