Originally Posted by Frogwatch
What if you are out of cell or wifi range? Do you still have GPS?
One of the greatest accomplishments of corporate misinformation has been the cell companies' success at making people think that you need cell service to have have GPS. *
While out of cell or wifi range, you should be sure to use a chartplotter program that caches the charts locally. Most of them do that, but some of the freebies do not.
* Another similar piece of misinformation is that you need a "High Definition" cable plan to receive local broadcast channels in Hi Def. In virtually all metropolitan areas, all you need is an ordinary old-fashioned antenna. All the local channels are REQUIRED to broadcast in high definition.