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Old 13 September 2012, 08:31   #31
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I'm only tethering to get Internet access while out and about, I'm sure that the ipad2 has built in gps however from the previous posts I also understand that I could make this more accurate by adding an external gps device.
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Old 13 September 2012, 08:31   #32
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Tethering won't tell you where you are, it will only get you internet data. It might help you get a rough idea due to some clever maths but that's it - you need a GPS receiver like the Bad Elf or similar.
I understood that by tethering you were also using the phones GPS?
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Old 13 September 2012, 09:35   #33
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The WIFI only Ipad has no GPS and by tethering it only gets you data but not GPS position information - you will need and external GPS for that - the internal GPS device on the 3G WIFI Ipad is fine for any navigation.

Hope that helps!
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Originally Posted by Zippy
When a boat looks that good who needs tubes!!!
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Old 13 September 2012, 10:20   #34
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I get it now, at home and connected to wifi it knows where it is. Took it round the corner and it wants a connection.
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Old 17 September 2012, 05:51   #35
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As a 'droid user I do have to ask - what use is a plotter that the battery will die in 20 mins?

Seriously tho' - I planned to use my 'droid phone with the MemoryMap app as an emergency plotter - but very quickly found all the things talked about above very true - even the condensation in the "dry" bag confused the touchscreen... I brought my old "pushbutton" Nokia out of retirement so I could at least phone people!

I have reverted to my 20 YO (!) Garmin 12 as the backup GPS - which also has the advantage of:
1) if it's a boat power failure, it will go 23 hrs on a set of AAs
2) IPx7 rated
3) chucks NMEA out the back so keeps the DSC "fed" too (assuming it's the main plotter has failed & not the boat battery)

Bottom line is you can buy a wee handheld mapping Garmin or equivalent for about 50-70 or so off ebay, which does what it says on the tin.
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Old 19 September 2012, 20:07   #36
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Also how do you mount the iPad? and is it in a waterproof over?
Thanks Alex
Alex
Saw this iPad case at the boatshow today - has an optional mounting kit
Waterproof case for iPad / iPad 2

also this one - already mentions in this thread
Cases for Apple iPad 2 | LifeProof

both looked very good but very expensive at nearly 100!
John
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Old 05 February 2013, 18:07   #37
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Hi I'm interested in getting an iPad as well as the navionics app but would like to know if the software has a depth / fish finder function?if yes how does it work? does the depth transducer connect to the iPad?

Thanks
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Old 06 February 2013, 00:01   #38
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Hi I'm interested in getting an iPad as well as the navionics app but would like to know if the software has a depth / fish finder function?if yes how does it work? does the depth transducer connect to the iPad?

Thanks
Marine GPS head units generate 50 and 200kHz signals that are used to measure depth. The depth sounder itself is simply the loudspeaker and microphone for these signals.

AFAIK iPads don't have a need to generate 50 and 200kHz signals, let alone output them at the required power levels.

BTW. If you're going down the iPad route for navigation you'll need to satisfy yourself about readability in bright sunlight as well as waterproofing and power supply.
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Old 06 February 2013, 03:29   #39
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Hi I'm interested in getting an iPad as well as the navionics app but would like to know if the software has a depth / fish finder function?if yes how does it work? does the depth transducer connect to the iPad?

Thanks
No...
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Originally Posted by Zippy
When a boat looks that good who needs tubes!!!
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Old 06 February 2013, 03:29   #40
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I got navionics on my ipad and it works well, if you have an iPhone as well you will automatically get it on the phone when you sync.

Run both of them cross channel and they work well, they run on GPS so really don't need cell coverage
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