Join Date: Feb 2010
Location: Narragansett Bay
Thanked 307 Times in 287 Posts
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Yes, these are separate apps. The Weather Underground looks like an app but is just a link to their website for my local marine forecast. Navionics and The anchor alarm don't need the internet to operate. I've tried InavX also but prefer Navionics. I believe one needs the 3G devices for GPS functionality but I think they make an external GPS antenna also.
Thanks. There is a remote bluetooth GPS device for the Ipad, so no cables. Even with the 3G unit, I suspect it won't connect with the satellites when down below. If I'm right, one will need the remote GPS receiver to get the anchor alarm to work when below.
I did order the 3G unit so I could have that internet access, when no wi-fi is available. However, it seems one could save the extra cost of the Ipad and invest it in the remote GPS if that was the sole reason for wanting it.
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In the harsh marine environment, something is always in need of repair. Margaritas fix everything.