Weekly quiz: Marine VHF duplex and simplex channels

By Nicolas

VHF is the marine communication means of choice.

Rather than bother with frequencies, its numbered channels was a great idea. It made radio simple to understand and use for boaters.

That is, until different needs led different countries to use it in different ways…

Question of the day:
🔹 How are duplex and simplex channels different?

And bonus question:
🔹 How is this relevant especially when switching from North American to international waters or vice-versa?

👉 Reply on one of our social media below. We’ll post the solution right here next Sunday!