Originally Posted by 9D280
At risk of playing devil's advocate, how accurate does your location need to be for an "oh s**t" moment?
... Or are we talking "no signal" here?
TBH, I have no idea what the gadges meant - it as just from the usual trawl of boaty forums. The impression that I got was that the sets had a reluctance to acquire Sat lock, and a tendency to loose it too. I was treating it with a pinch of salt and asking here for "real world" info. The set is particularly interesting as it has a very shallow casting and probably needs only 3" of free space behind a console to flush mount.
To sort of answer your question above, I think they meant no signal and I'd accept position updates every minute or so - but if the set can't keep a decent sat lock then it will be useless for navigation and less than confidence inspiring.
I'm fully aware that there are people out there stupid enough to fit a unit like this in a wheelhouse, beside another VHF or GPS and then complain on the Intertubes about how it doesn't bl@@dy work....