Wood and many fiberglass
boats are poor targets but if it had an outboard
it should reflect pretty well. Try adjusting your gain, clutter and try your "expansion" setting if you have it. Just got back from a 100+ nm delivery
in pea soup this weekend and for 80nm we had about 150-400 feet of visibility. Not unusual conditions for those of us who sail in Maine
Use your radar when there is no fog so you can be sure it is tuned well and that you're picking up all the targets you'd expect. Some boats are just POOR targets regardless.
remembers your settings for each range setting but you still need to tune depending upon sea conditions. Up here we pick up lots of lobster pot buoys as well so radar overlay can remove all the rocks and islets from the targets you need to be watching but not those pesky flags
on the pot buoys.... I suppose if not sailing amongst the thousands and thousands of small ledges and rock outcroppings if Maine
radar overlay would be less important..
My experience is that most all boats with reflectors show up very well, and I always look when we can see them, if it is a close passing. Had an older Halberg Rassy pass us within 60 feet crossing the Bass Harbor Straight and we could see her Echomaster in Double Catch Rain. She showed up like a tanker before we could physically see her when passing port to port....
Sailing in fog takes all the senses not just electronic ones....