3G iPhone GPS is not real, its called ASSISTED GPS...

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kuckiemonsta

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Call up your AT&T rep or an Apple Agent, because I found out that the GPS for the 3G iPhone is not real GPS, but still a triangulated signal that moves with you and is wrong. So I don't think its really all that besides the 3G, but with the $30 data plan, that killed it...sorry amigos, but just want to help...:confused::eek::mad:
 
kuckiemonsta said:
Call up your AT&T rep or an Apple Agent, because I found out that the GPS for the 3G iPhone is not real GPS, but still a triangulated signal that moves with you and is wrong. So I don't think its really all that besides the 3G, but with the $30 data plan, that killed it...sorry amigos, but just want to help...:confused::eek::mad:
Click to expand...

I doubt that its AGPS man... the patent information has a GPS chip in it.... THough AGPS is the use of both a gps chipset AND triangulation... correct me if i am wrong please.
 
aGPS is two things.

1) it first uses the cellular towers to triangular your signal (hence the A is assisted).

2) it does have directed feed to satelite as it said on the apple website. The icon turns blue.


So if you're outside, it will use full gps. If you're in a indoor building with hotspot and the gps signal is not found, it will use alternatives.
 
Dammit Cubs said:
aGPS is two things.

1) it first uses the cellular towers to triangular your signal (hence the A is assisted).

2) it does have directed feed to satelite as it said on the apple website. The icon turns blue.


So if you're outside, it will use full gps. If you're in a indoor building with hotspot and the gps signal is not found, it will use alternatives.
Click to expand...

That that makes perfect sense and would in all actuality work BETTER than the Curve, Tilt, and BJ2.
 
It's amazing how many people neglect to do a simple web search to find information (and actually READ said information) and instead opt to make wild conclusions...
 
This guy registered on MacRumors and the only two posts he has made are this completely false BS stuff about GPS.
 
PoitNarf said:
It's amazing how many people neglect to do a simple web search to find information (and actually READ said information) and instead opt to make wild conclusions...
Click to expand...

Well... To a regular macrumors user this shouldn't be any surprise. Those 'brilliant minds' keep poping out lately like mushrooms after rain.
 
Apple.com said:
How it works.
GPS (Global Positioning System) technology uses information from earth-orbiting satellites to find locations. A receiver estimates the distance to GPS satellites based on the time it takes for signals to reach it, then uses that information to identify its location. But the A-GPS (Assisted GPS) solution on iPhone 3G goes a step further, using a unique approach to find the closest satellites and more quickly identify your position. That gives you a faster fix on your location than with regular GPS.
Click to expand...

GPS takes a while to pinpoint your location because it needs to find out what satellites it's looking for. On older GPS systems, you actually had to type in your city, state to speed up the satellite acquisition phase. With A-GPS, the iPhone does what it has since 1.1.4 which is get a very good approximation of your location. It feeds that information to the GPS system and zeros in on your actual location faster. A-GPS is really only relevant at GPS start up. With the iPhone, Apple claims,

Apple.com said:
Save power.
GPS on iPhone is active only when you need it. iPhone powers the GPS unit on and off quickly and automatically, so it won’t adversely affect battery life.
Click to expand...

Therefore, A-GPS is important in narrowing down the location each time the GPS is automatically turned off and back on.
 
I'll feel safe knowing my government always knows where I am. And now they don't have to break into my house to plant a bug on me. I'd hate for them to have a hard time looking for me to get me my lost rebate check. :D

Sorry to change the subject. But I think this is a good feature. It makes me wonder what we will have in cell phones in another five years.
 
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