Hi Pedro,
aeroplane mode shuts down the GPS. See discussion here:
<http://discussions.apple.com/thread.jspa?threadID=1788268>
I used my iPhone as a GPS for navigating in Melbourne every day for a
week. I only have a 5Mb free allowance with my plan and used only a
very small part of it.
My guess is the iPhone does use telephone towers to initially
determine its position by triangulation as it is fairly quick but not
accurate.
Once the satellites are located, they kick in and are much more
accurate.
Regards,
Eugene
On 11/09/2009, at 4:57 PM, Pedro wrote:
Hi Eugene and Walter
I'm happy to be proved wrong because I think these apps are great.
Could you please turn your airplane mode on and see if they still work
cheers
Pedro
On 11/09/2009, at 4:41 PM, F.W. Hänel wrote:
it gets the signal from the satellites - not from the mob/phone
towers, maybe Pedro is getting confused with the Maps application.
Cheers,
Walter
On 11/09/2009, at 4:28 , Eugene wrote:
Pedro, I have to disagree with you on this one. I don't have the
TomTom but do use the Sygic alternative. It, like the TomTom, uses
the internal GPS and has proved very accurate. It doesn't use
downloaded information from cell towers.
As for the voice navigation. The Sygic uses voice direction but
does not have a synthesiser to actually pronounce the street
names. I think the TomTom is the same.
Regards,
Eugene
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On 11/09/2009, at 4:08 PM, Pedro wrote:
Hi Genevieve
Thank you, I have had a FANTASTIC day
Yes there is voice control on the TomTom for iPhone (quite a few)
http://iphone.tomtom.com/en-us/guided-tour.html
I would think twice though before shelling out for a nav app for
the iPhone. The GPS part of the phone does not work very well
and will have to rely
on cell towers for its information. So unless you have a large
(and cheap) data allowance you would be better of with a stand
alone GPS unit.
One saving grace for the TomTom is the car kit, which hasn't been
releases yet, will have a extra GPS chip to help out.
If anyone on the list has a new GPS app I would ask they try it
out with the phone in airplane mode to see if it works
regards
Pedro
On 11/09/2009, at 12:50 PM, Genevieve Armson wrote:
Does the tom tom app for iphone come with voice or is it just
the onscreen directions?
Have a FANTASTIC day!
Genevieve
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