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  #1  
Old 02-25-2013
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iPhone4 and iPad2 w/o 3G

I bought an iPad 2 and purchased the Hotspot plan for my iPhone 4. Ideally to use as a chartplotter on my sailboat. The iPad2 w/o 3G does not apparently have a gps receiver. At the dock, my iNavX iPad app worked great, but unbeknownst to me it is using my dock wifi router as a location - the little blue triangle. On the first 2 sea trials, as I realized that I had lost connectivity and location, I switched the network to my iPhone 4 Hotspot, but the iNavX failed to pick up location. However, tonight a dockside check of the system worked.

There are iPad2 GPS antennas for about $100, but I want to know if anyone is using the iPhone4 for GPS reception and how that is working out for them.
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Old 02-25-2013
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Re: iPhone4 and iPad2 w/o 3G

I'd say teaming up your phone and iPad is just an awkward solution when a bluetooth GPS receiver is easy and pretty foolproof. Juggling two devices and keeping them charged and such seems like a pain in the neck. I am not sure that you can actually share location information between the iPhone and the iPad over a tethered connection anyhow.
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iPhone4 and iPad2 w/o 3G

If you're planning on 'tethering' your iPad through your phone and using the iPad for chart plotting via cell towers I'm afraid your data usage will be through the roof! I bought a 'Bad Elf' brand plug in GPS unit for my non-G iPad. $95.
It has worked well without any cell tower assistance so far. I use it with the Navionics app.
It did fail to connect for a day once but I had my iPhone as a back up.
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Old 02-25-2013
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Re: iPhone4 and iPad2 w/o 3G

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Originally Posted by SV John Galt View Post
If you're planning on 'tethering' your iPad through your phone and using the iPad for chart plotting via cell towers I'm afraid your data usage will be through the roof!
And navigating via cell towers is only good for so far from shore, no? I know I lose cell connection when I get a good bit out on lake Ontario.
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Old 02-26-2013
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Quote:
Originally Posted by SV John Galt View Post
If you're planning on 'tethering' your iPad through your phone and using the iPad for chart plotting via cell towers I'm afraid your data usage will be through the roof! I bought a 'Bad Elf' brand plug in GPS unit for my non-G iPad. $95.
It has worked well without any cell tower assistance so far. I use it with the Navionics app.
It did fail to connect for a day once but I had my iPhone as a back up.
I also use a Bad Elf GPS with my IPad and Navionics and can recommend both.
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Old 02-26-2013
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Re: iPhone4 and iPad2 w/o 3G

I bought the Bluetooth GPS receiver, thinking it would be necessary when I was below deck. It wasn't, the internal GPS works fine. However, it still works incredibly well when I do use it. Almost doesn't matter where you put it and the receiver will charge off any 12v cig adapter. The only thing I don't like about it is you swipe your finger over it to turn on/off. Too easy to do when unintended.
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Old 02-26-2013
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Re: iPhone4 and iPad2 w/o 3G

Quote:
The iPad2 w/o 3G does not apparently have a gps receiver. At the dock, my iNavX iPad app worked great, but unbeknownst to me it is using my dock wifi router as a location
I ran into the same thing. My boss gave me an iPad 3 WiFi and I found out the hard way that it does not have GPS. So I returned it for a 3G version. Contrary to what some think, you do not need cell reception for the GPS to work. In fact, I turned off the cell reception and only used the GPS, which is as accurate as any GPS chart plotter. To that end, I use iNavx, iSailor, and iRegatta as navigational aids. I later turned on the cell capability and hotspot feature so that I could have my laptop access the internet. But I will stress that 3G is not needed for the GPS to work.

We generally keep the iPad below deck but on deck, in a ziplock bag, it's an extremely versatile navigational tablet. The power draw isn't that bad when plugged in and the battery lasts.

I would not buy a Bluetooth GPS receiver as Bluetooth sucks battery like crazy. And I hate external stuff flying around the cabin.
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Old 02-26-2013
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Re: iPhone4 and iPad2 w/o 3G

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Originally Posted by Sabreman View Post
But I will stress that 3G is not needed for the GPS to work.
For clarity's sake, As Sabreman suggests, you don't have to have data enabled for the GPS to work, but you have to have a 3G/cellular iPad to have an internal GPS chip. Otherwise, it's the bluetooth solution. Many have found out the hard way.
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Old 03-04-2013
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Having 3G on will provide a faster initial location however.
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Old 03-04-2013
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Re: iPhone4 and iPad2 w/o 3G

You can try to do that, but I'm not sure to be successful
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