I just received my new Garmin Map76s. I haven't had it on the boat yet. I
took it to the beach yesterday (Oregon coast) and pointed it to the south
west, slightly elevated. After a few minutes, it found satellite 47, and
after a few minutes more it indicated differential GPS. It didn't take very
long in the car traveling home before it lost the differential indication.
My question is: After mounting the bracket on my boat, will I only get
differential GPS when traveling SW, and would an external antenna be the
cure? Thanks.