🔍 Key Concepts

• Radio watchkeeping requirements under SOLAS and ITU Radio Regulations • Difference between routine log entries and entries related to silent periods on distress frequencies • How often time-based operational entries (like position, test calls, etc.) are typically required in the radio log

💭 Think About

• Look at the wording: is the question asking about the time interval only, or about time interval plus an extra condition related to silent periods? • Consider what "in addition to the entries referring to silent periods" actually means in practice for the radio officer making log entries. • Think about standard practice: if you are standing a continuous radio watch, what minimum interval between log entries would still demonstrate that the watch is being properly maintained?

✅ Before You Answer

• Verify the exact minimum time interval specified in the applicable radio log or GMDSS/watchkeeping regulations (e.g., at least every X minutes). • Check whether there is a separate requirement for documenting silent periods, apart from the general interval requirement. • Confirm whether the regulation mentions that the time‑interval entries are explicitly in addition to silent‑period entries, or if the time requirement stands alone.