🔍 Key Concepts

• Distress frequencies and channels currently designated for radiotelephone use (VHF vs MF) • Historical vs current use of 2182 kHz and how GMDSS changed watchkeeping requirements • Standard format and content of a radiotelephone distress transmission

💭 Think About

• Look at each option and ask: does this reflect an internationally recognized current practice, or an older/obsolete practice? • Compare how distress is handled on VHF Channel 16 (156.8 MHz) versus on MF 2182 kHz – are both still treated the same way in modern regulations? • Think about whether adding long dashes after a distress call would help or interfere with other traffic on a busy distress frequency.

✅ Before You Answer

• Verify which frequencies and channels are officially designated today for radiotelephone distress (consult current ITU/Navigation Rules/GMDSS guidance). • Check whether continuous or prolonged tones/dashes on a distress frequency are recommended or discouraged in modern procedures. • Confirm if 2182 kHz is still required as the primary starting point for voice distress calls on all vessels, or if that depends on equipment/sea area.