🔍 Key Concepts

• VHF Channel 16 (156.80 MHz) as the international hailing and distress frequency • How the Coast Guard uses Channel 22A (157.10 MHz) after initial contact on 16 • The role of medium frequency (MF) / HF frequencies (kHz range) in marine safety broadcasts

💭 Think About

• Ask yourself: On which channel does the Coast Guard normally start distress, urgency, and safety calls, and on which channel do they often move the conversation? • Consider whether routine storm warnings are usually given on the same distress/hailing channel, or if another working/safety channel is used once contact is made. • Look at the units: two options are in MHz (VHF) and one is in kHz (MF/HF). Think about which band is most commonly used for local coastal storm warnings you’d actually hear in your boat.

✅ Before You Answer

• Verify which channel is designated as the distress, safety, and calling channel in the VHF band. • Check which VHF channel the Coast Guard typically announces, "Switch and listen to Coast Guard on channel ___" for safety and storm information. • Confirm whether 2670 kHz is mainly associated with radiotelephone safety and weather broadcasts beyond standard VHF coastal coverage.