ok. can't wait the news... arrrrgggggggggghhhhhhh apple pls annouce.

one question can GPS works without activate 3G ?

Good question. I want to know too.


Anyway no sim card insert GPS can work?
If not, it's mean GPS positioning using our 3g data plan?

I use it when I was at sabah and on way to Kinabalu park and to the my hotel and it working fine .....
another experience is going to mid valley and pj digital mall

strongly suggest to put in sim card not airplane mode !!!

Thanks for your suggest.

GPS works without activating 3G but locking with satellite will be slower and you need to be in open and stationary to get the initial lock. It will be almost instant when 3G activated.

The other thing most ppl dont know is that GPS actually works even on the wifi-only version of iPad if you use iPhone 4 Personal Hotspot feature. Its not using the old cell tower triangulation method but actually sharing and utilizing the actual GPS chip from iPhone itself. You can try doing the GPS tracking while driving using the wifi-only iPad after tethered with iPhone. Only works with iPhone 4 though. That's the reason I bought the wifi-only iPad

This post has been edited by sunyen: Apr 30 2011, 05:40 PM

Untrue if you are using the 3G version because the iPad will first use the GPS chip, just the locking is slower. I tested this while in Paris last week where I turn off cellular entirely but still manage to track using Map2go

This post has been edited by sunyen: Apr 30 2011, 05:45 PM

Can you do this experiment:

turn off wifi and turn off 3g.

WIthout both data, it'll not have data location from wifi or 3g.

Now, try to track using gps offline map.

DOn't use google map la. Coz u no data mah.

i'm not tech savvy, it is my best guess Ipad 2 intergrated 3G cellular radio and GPS satelite radio in one chipset. So if disable the 3G means also diabling the satelite radio. which left only A-GPS where can be access by WIFI

try taking out your SIM and turn off WIFI, download an offline map app like Maps2Go, leave it stationary with open clear sky outdoor for minutes (sometimes up to 15min!), you will see no halo but a blue point

the cellular radio is on or off?

cellular is off because no more sim

when you turn off cellular, GPS is still active eventhough it is built in the same chip because of separate circuit.

but do note the iPad's gps is practically useless when you turn off cellular because of the long 15min cold initial lock.

you can read more about this here: https://discussions.apple.com/message/11982...sageID=11982527

thanks for ur kind explanation. Tat means without sim card, the radio signal receive chipset still can operate and it receive the satelite signal only. And u mention it take 15 min for initial is really a long duration even without AGPS
Seems like Ipad 2 did not using a good GPS chipset...

sifu,

based on your information, does an ipad1 without 3g can only use GPS with wifi connection on iphone4 hotspot??
mean i cant use GPS with the ipad1(wifi version only)??

simply download... how about map??? include??

We all know the fact that iPad comes in 2 flavors which is:
1- Wifi only (do not have GPS chip)
2- Wifi + 3G (have GPS chip in 3G module in separate circuit)


So, my question is how often do you use GPS with your iPad? Is it on par with standalone GPS unit or so-so?

Nope. Its too big so it blocks my view & hard to attach to a holder. Besides I don't want to drop my iPad2. I use my iPhone for navigation and it works without any problem.

Well not worthed it as you need to invest in a GPS app which cost a lot also..

Most ppl don't care about the GPS I guess? 3G connection is still the main point..

Not really cost a lot. I just bought SyGic for USD14.99 and its works on both iPhone4 and iPad.

I do care about GPS because I can walk around Hong Kong discussing where we should head to
with my wife looking at 10" screen instead of tiny 3.5" iPhone 4.

wah walk also use gps? respecT @@