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All replies
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Helpful answers
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Sep 26, 2011 8:58 PM in response to Tom Alperinby deggie,No, read the link I posted for MP, since he won't. A-GPS only refers, in the case we are discussingm, to cell tower triangulation. It has nothing to do with WiFi.
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Sep 26, 2011 8:59 PM in response to Tom Alperinby Chris CA,"It's the assisted part of assisted gps without the gps. No gps receiver, but wifi for the assisted part."
No.
The 3G iPad can get locations in three way.
GPS satellites.
Cell towers (the A in A-GPS)
Wifi hotspots.
The wifi only iPad can get location in only one way.
Wifi hotspots.
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Sep 26, 2011 9:01 PM in response to Chris CAby MultiplePerspectives,Tom is right. Chris CA/Deggie seems to be learning as they give advice.
A-GPS can utilize both cellualr and WiFi bands.
I realize it feels good to help people and get points, but, lets stay within our competence.
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Sep 26, 2011 9:05 PM in response to MultiplePerspectivesby deggie,No, he isn't. Maybe he will actually click on that link and read it as it clearly states A-GPS is a GPS chip technology that uses cell technology and cell towers. WiFi cannot use cell towers.
I agree, people should stay within their competence. Take your own advice.
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Sep 26, 2011 9:05 PM in response to MultiplePerspectivesby Chris CA,Since there is no GPS chip in the iPad, how does this apply?
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Sep 26, 2011 9:10 PM in response to MultiplePerspectivesby Tom Alperin,From the wikipedia article on A-GPS:
Many mobile phones combine A-GPS and other location services including Wi-Fi Positioning System and cell-site triangulation and sometimes a hybrid positioning system.
We can argue on details in the definitions, but what's the point. Cellular iOS devices can use every available resource, including wi-fi to find position. Non cellular devices have to rely on wi-fi, but I've read posts indicating that a tethered phone can pass location information to a wifi only device.
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Sep 26, 2011 9:19 PM in response to Tom Alperinby deggie,While WiFi can be used for the purpose I don't know of any device manufacturers that are using WiFi with A-GPS, with the problem being maintaining a correct database of location information regarding the location of the routers. I know for a fact that Apple does not use WiFi as part of A-GPS, which is why non-3G ipads and the iPod Touch do not list this capability.
I do agree, tethering can pass on location information and as was pointed out far earlier in this thread you can use BT GPS devices with the iPad WiFi for location information.
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Sep 26, 2011 9:35 PM in response to deggieby MultiplePerspectives,Deggie,
I have a feeling your reading all this online now as the thread grows and without thinking posting the knowledge you have gained.
People here say they got a location lock on their WiFi devices, I believe them.
I also also tested iPods, iPads with WiFi only to test the WiFi A-GPS server.
It locks on.
If I could Deggie/Chris, I would just have the original poster give you the 10 points so you would stop contradicting people.
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Sep 26, 2011 9:43 PM in response to MultiplePerspectivesby deggie,There is no such thing as a "WiFi A-GPS server".
We already said that non-GPS iPads (and the iPod Touch) can receive location information by polling WiFi routers. http://www.pcworld.com/article/201486/apple_location_data_collection_policies_wh at_you_need_to_know.html
You also might want to read this thread although it is a bit dated:
https://discussions.apple.com/thread/3078494?start=0&tstart=0
I'm guessing you are about 15 years old and attempting to impress everyone here.
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Sep 26, 2011 9:51 PM in response to MultiplePerspectivesby Chris CA,People here say they got a location lock on their WiFi devices, I believe them.
I believe them also as I have a location lock right now on my wifi only iPad.
I also also tested iPods, iPads with WiFi only to test the WiFi A-GPS server.
You have access to a "WiFi A-GPS Server"?
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Sep 26, 2011 9:52 PM in response to Chris CAby MultiplePerspectives,Chris/Deggie or what other accounts you may have.
Read through the thread carefully and you may learn something.
It's impossible having a mature conversation with you.
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Sep 26, 2011 10:00 PM in response to MultiplePerspectivesby Chris CA,As noted, we are two different people.
Read through the thread carefully and you may learn something.
You want me to read it again after having read it like 30 times already?
Please read pages 2-4 when I expalin a bit more detail about A-GPS.
It's impossible having a mature conversation with you.
Not sure why you feel this way.
You post incorrect info and we ask for clarification but you don't post it.
You have access to a "WiFi A-GPS Server"?
What exaclty is this? Got a make/model #?
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Sep 26, 2011 11:51 PM in response to MultiplePerspectivesby Michael Morgan1,MultiplePerspectives wrote:
Chris/Deggie or what other accounts you may have.
Read through the thread carefully and you may learn something.
It's impossible having a mature conversation with you.
1. Almost everything you say is either misleading, incomplete, or totally incorrect.
2. Almost everything you think you know, you don't.
3. 'Nuff said.
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Sep 27, 2011 5:50 AM in response to deggieby Csound1,deggie wrote:
I'm guessing you are about 15 years old and attempting to impress everyone here.
I think that's 15 and failing to impress
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Nov 4, 2011 6:16 AM in response to Dah•veedby grouver,Actually this is a common misconception. AGPS is not at all used to achieve better coverage than GPS can provide. A-GPS is used to triangulate your position and make the decision on which GPS satelite to use after you have gotten your geo coordinate. So if you get no GPS signal there is no way that A-GPS will work either.
Oh and as to why the wi-fi only iPad has no GPS ... without the cellular signal you cannot get the GPS to work either. You do not however need to have a sim in the slot or an active data plan. All towers broadcast their location to any device that is listening and triangulation is in fact done on the device (iPad) and not the tower.