Capt John,

In an attempt to get the last word - and to set the record straight - I do
have Radar, Depth Sounder, Compass and Charts, both paper and electronic.

So you are jumping to conclusions when you make the sweeping statement " In
such a case, someone like you, who's systems are all based on the same
system, GPS, has no back up system.".

Claus




"Capt John" wrote in message
oups.com...
First off, commercial jets do have back up, they have transponders,
RDF's, and most still have LORAN, if the GPS system fails, they still
have a way to tell where they are. And their have been problems with
GPS before, local problems, but it does happen. In such a case, someone
like you, who's systems are all based on the same system, GPS, has no
back up system.

A Radar system (so you can tell where land is, not to mention other
boats), a depth sounder (to tell how much water is under you) can act
as good "back up" since you should always know approximately where you
are (when you have an equipment failure). With them and a compass, plus
charts, you shouldn't have a problem, add a LORAN (check eBay, not too
expensive) and you have no problem knowing exactly where you are, where
everyone else is and if your in any danger of running aground.