I run a 858, had it last year and never had a problem with it. I have it hooked up to a 5 port with 1198,1199,998 and I link. 1199 is my main unit that has my heading sensor plugged into it.
So after about 30-60 minutes on the water the 858 using HS GPS pops up signal lost switch to a different source? Does it even if I switch to the internal 1199.
Any ideas.
Updated software end of May. Fact is that is when it started doing it. I updated software and installed the HS puck.