
This is a first here at Attainable Adventure Cruising: Colin and John have teamed up on a chapter to share the fruits of some 70 years of combined radar experience, much of it in the foggiest (Atlantic Canada) and highest-traffic (English Channel) areas of the world.
[John's thoughts begin and end with square brackets like this sentence, so you can keep the two of us straight.]
Let's imagine that the fog has socked in good and proper. Radar comes into its own now, so: