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Old 30-05-2015, 08:41   #31
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Re: Tablet for navigation

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Don't count on it, most wifi models get their positions from land based data networks... Thou I'd like to know which ones have real GPS, that's of course if there're some.
Where Google location services are concerned, if enabled, your position is determined from surrounding wireless and network towers. If you have enabled your GPS, Google will use it too.

If you own any android device with a built in GPS, the GPS will work independent of wireless and network towers. There are two types of GPS built into android devices. One produces nmea data, the other provides "positional" data that must be converted to nmea data for programs that use nmea data only.

I cannot say conclusively, but my impression is newer devices are adopting the 'positioning' scheme over nmea output. Have no clue why.
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Old 30-05-2015, 08:43   #32
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Re: Tablet for navigation

I too use the iPad Air 2 with InavX. I have all my boat instruments including AIS repeated over WIFI and iNavX integrates all the data. I augment my Raymarine E7D with it, and I love the fact that I can watch the Radar on the iPad. I typically only use it in the cockpit at night entering a new harbour. I also agree with the Lifeproof case as my first iPad went swimming (at the dock as I was loading gear on the boat).
I use the combination of iNavX, Ayetides HD, DragQueen and as a backup use the Navionics app. New apps appear all the time.
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Old 30-05-2015, 10:48   #33
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Re: Tablet for navigation

[QUOTE=Paul54;1836129]
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I use an IPad but can't see it with polarized sunglasses :-(





I have run into this same problem with both my iPad and my Garmin. This may sound silly, but you need to tilt or rotate either your head or the display. You can see the brightness change and probably get it so the display completely disappears. It is annoying but easy to work around.



The light emitted from most displays is highly polarized, so when viewing them through polarized glasses you have to be lined up just so. At some point I want to do a post on this in much more detail. I learned all about this when I repaired my very old depth gauge with some recycled material from an old lap top screen.

I don't really have a problem seeing my Garmin but cannot see the IPad at all....sometimes I think it has gone off and then remember I have my sunglasses on . 😁


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Old 30-05-2015, 10:57   #34
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Re: Tablet for navigation

And to save a few $$ if you decide on an iPad, I have purchased both iPad and MacBook Air from the Apple store online as reconditioned. Came with a one year warranty and I got the Applecare to boot. Just a thought.
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Old 30-05-2015, 12:28   #35
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Re: Tablet for navigation

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Don't count on it, most wifi models get their positions from land based data networks... Thou I'd like to know which ones have real GPS, that's of course if there're some.

Not so with the Android tablets (Asus Nexus and Samsung) and phones (two different Motorolas, now two Samsung S5s) we had/have. GPS is enabled no matter what (assuming I've selected GPS ON in the settings menu).

IOW, we have GPS even when out of range of either WiFi networks or cell towers.

-Chris
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Old 30-05-2015, 15:11   #36
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Re: Tablet for navigation

When I sailed by boat from the Virgin Islands up the islands and back to Florida I used an iPad and iPhone with the garmin app and charts loaded on them as my backup navigation. Actually, it's probably more fair to say they served as my primary navigation and the dedicated GPS ended up being the backup.

Similarly when I chartered in the Abaocs a few months ago, I relied on my iPhone and Garmin app more than the ship GPS since the Garmin charts are much more accurate there. I think the entire U.S. coastline and Bahamas are only $30. The app is free.
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Old 02-06-2015, 12:48   #37
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Re: Tablet for navigation

Don't get Microsoft surface. It does not have GPS sensor. I bought one and returned it because it has no GPS. There are quite a few apps for navigation on Windows store.
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Old 02-06-2015, 14:00   #38
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Re: Tablet for navigation

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Not so with the Android tablets (Asus Nexus and Samsung) and phones (two different Motorolas, now two Samsung S5s) we had/have. GPS is enabled no matter what (assuming I've selected GPS ON in the settings menu).
Good to know. It was just yesterday (=almost a couple of years ) they didn't.. (Wifi tablets)
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