Originally Posted by PaulinVictoria
Garmin 72H linked to OpenCPN, that gives you a chartplotter, and a reliable GPS should the laptop fail for some reason so at least you still know where you are. Not free by any means, but not that expensive in the grand scale of things.
I like the idea of using a "real" GPS connected to a laptop. My first choice is a smaller chart plotter with an internal antenna (but that's JMHO)
My Iphone is great, but, every once in a while it tells me I'm in a location that I am not. Seems to correct itself in a matter of seconds, but, still... My Garmin has never done that.
Also it does not appear that I can tell how strong the GPS signals are that my phone is receiving. "Real" GPS receivers will show that information.
*Of coarse paper charts and keeping up on ones navigation skills are priceless.