🔍 Key Concepts

• Channel 13 (Bridge-to-Bridge Radiotelephone) is intended for navigation safety communications between vessels, especially in close-quarters situations • The difference between low power (typically 1 watt) and high power transmissions on VHF and why power limits exist on certain channels • When it is appropriate to override normal power limits to ensure safety of navigation

💭 Think About

• Think about why Channel 13 exists and what types of messages it is meant for between vessels in sight or near each other • Consider which situation(s) would actually require higher power to ensure other vessels hear you, versus situations where higher power could cause unnecessary interference • Ask yourself: is Channel 13 primarily for general distress calls, or for close-quarters navigation safety communications?

✅ Before You Answer

• Review the specific purpose of VHF Channel 13 in the Navigation Rules and VHF usage guidance • Check which condition(s) listed would truly demand a stronger signal to prevent collision or ensure safe passing arrangements • Verify whether distress/emergency traffic is normally conducted on Channel 13 or on another VHF channel, and how that affects your choice