I've read it. Do you even have a clue what a A-GPS is? It stands for Assisted GPS. It means it is designed to work by calculating location based on distances and angles from cellular TOWERS. That processor has routines built into it for solely that purpose. It is NOT a standard GPS system at all. . . And again, it has no GPS antennas or supporting chipsets.
SHEESH!
gpsOne is the brand name for a cellphone chipset manufactured by Qualcomm that allows cell phones to more accurately plot a user's position, using a technology referred to as A-GPS or Assisted-GPS. For differences between GPS and A-GPS methods, please see their respective articles. . .gpsOne is primarily used today for Enhanced-911 E911 service, allowing a cell phone to relay its location to emergency dispatchers, thus overcoming one of the traditional shortcomings of cellular phone technology.
From the article on A-GPS, which is all your phone has because it has no Satellite antennas:
"A-GPS" features are mostly dependent on an internet network and/or connection to an ISP (or CNP, in the case of CP/mobile-phone device linked to a Cellular Network Provider data service). A mobile (CellPhone/SmartPhone) device featured with "A-GPS" (no additional "S-GPS"/Standalone-GPS feature to be selected as alternative, or there is no "Hybrid GPS" as a complete A-GPS/S-GPS hybrid features in one device) can work only when there is an internet link/connection to an ISP/CNP - it is useless in areas with no coverage of internet link (or no BTS towers nearby, in the case on CNP service coverage area) to connect to those A-GPS servers (that are usually provided by CNPs). On the contrary, an "S-GPS" (including "Dedicated GPS") device/feature requires no connection to internet/network to obtain GPS data since it connects directly to GPS satellites swarming overhead. — Wikipedia articles on gpsONE and A-GPS
This is the modern definition of the system. . . but your phone does not have satellite antenna. . . That is why the PPC-6700 requires an external Bluetooth GPS to work . . . Sorry. Those are the facts. Show me a working PPC-6700 that doesn't. . . or an article that has successfully found a GPS satellite antenna hidden somewhere inside the PPC-6700. YOU CANNOT. It ain't there. . . or are all the modders of your phone lying????
Here's another proof about the GPS on your phone from an authoritative source:
And this:
MS Assisted — Your handset is connected to the network, uses GPS signals + a location signal then relays its 'fix' to the server, which then uses the signal strength from your phone to the network towers to further plot your position. You can still maintain voice communication in this scenario, but not 'Internet/Network service' ie Web Browser, IM, streaming TV etc.. (This is the type of GPS your PPC-6700 is capable of doing — Swordmaker)The role of the mobile carriers
Now for the other shoe to drop: the carriers. Every modern cell phone has an aGPS chip on it because of the enhanced 911 requirement, which is also why you don't have many phones with a separate SiRFIII chip on board: it is redundant and expensive.
But on Sprint, Verizon and some other carriers like AT&T they have devices with aGPS on board that is not accessible to the end-user for any purpose except for e911 (like the ppc-6700 or the Treo 700wx). Now why this is the case is a matter of debate and a lot of speculation, which ranges from the carriers have purposefully disabled this feature to the APIs were not ready (API= Application Programming Interface) or maybe even a combination. Some have also suggested that these devices need an internal antenna plexed to the chip in order to gain a satellite signal, although since cheap flip phones on Sprint can do aGPS, this remains controversial. Regardless, the fact that simple flip phones could do aGPS for mapping and $500 WM phones cannot, rubbed many in the mobile community the wrong way. — Source Extracted from "GPS vs. aGPS: A Quick Tutorial", By Daniel Rubino, Saturday, Jan 3, 2009
Then there's this:
Hi All,Then from the same technical help site:I have the same concerns, I have a Sprint PPC-6700 and a Verizon XV6700, and I can't seem to get the GPS to work via C# when using interop. In order to get the GPS applet to appear in the control panel (like it does when using the emulator) a registry hack is required. Download and install a reg editor like PHM Regedit, and change the HKLM\ControlPanel\GPS Settings\Hide value to 0. (by default it's 1 on these devices), I have noticed that by changing the settings in this applet, it appears to set the values for the GPS Intermediate Driver settings, as per the documentation on MSDN. (It may also do other things, I have only looked here)
My biggest concern is that this device simply does not expose the GPS except for carrier branded functionality. Whenever looking at the specs for this device, the GPS is usually mentioned as afterthought (or not at all), and usually disclaimed by saying something like "GPS for E911" services.
Also to strengthen this hypothesis, I haven't been able to get any GPS mapping software to read the GPS data either.
Can anybody confirm that this device can/cannot actually do what it sounds like it might be able to?
Any help would be greatly appreciated!
8 martie 2006
The current use for E911 GPS is Triangulation of cell sites. In order to ACCURATLEY track movement, you need a GPS tranceiver. This connects via bluetooth. Please search "blue logger" or "bluetooth GPS" for this. LBS services are only available in certain markets and with limited carriers. ALL new production handsets are E911 GPS - Mandated by the US Government...but very few can actually provide turn by turn applications.
More:
After watching the post progress I contacted UTStarcom who are the OEM designer/distributor of the product asking......"I have a Telecom New Zealand HTC Apache, can you confirm if this unit has a built in gps chip and can it be accessed for use with software, I understand the ppc-6700 offered in the USA did originally have a GPS Chip."
The reply I received was.....
"The only GPS chip it has is E911. It can't be re-programmed to be used for other 3rd party software."
Note: UTStarcomm are not the manufacturer.
So now we know what it is we just need someone who can utilise the chip, I have had very little luck finding any software.
Cheers
And FINALLY, nailing your coffin shut on this dead issue:
U are all searching desperately for how to make the "presumed built in GPS" to work. As a geospatial engineer, I can say that the built -in device that is inside the ppc6700 or the sanyo phones, is nothing but a chip that can interpolate position using a surveying method called Trilateration and not triangulation like people said. this method aims calculating an unknown position(X?,Y?) knowing the position (Xi,Yi) of the nearest sprint Antennas (at least three). That's why sprint say the E911 is disponible in only some areas because it must be at least three and at a distance less than 6 miles, the more the antennas available the best the accuracy. So, if Sprint intend to introduce a new LBS feature in its services, these gonna be based on that.For those who sees A GPS icon in the settings tab after using that registry tweak, that has nothing to do with the built in GPS but just for showing the ability of the system to be hooked to a GPS device. we face the same kind of illusion on other systems such WinXp and linux.
Another thing from the primitive to the most advanced GPS receiver, there is always an antenna where is it on the PPC6700?
in addition I try to test it in DGPS using Esri ArcPAD and Leica trimble and it hasn't detect any connection any signal neither P code nor S.
Last Advice, Don't waste ur time, unless u are searching how to hack the trilateration and the communication mode for that chipset than the rest is easier.
With that, I consider the matter closed.