GPS GPS GPS!

[argov]

Little research in QUALCOMM web site and FCC reports, revile thing or two about the GPS.

The titan have QUALCOMM MSM7500 , that include GPSOne.
http://www.cdmatech.com/products/msm...t_solution.jsp

I did some research on GPSone and found :
Key Functionality
Supports multiple modes of Assisted-GPS (A-GPS), which leverages GPS satellites and the cellular network for highly reliable positioning capabilities
Supports Standalone-GPS, which expands the availability of positioning capabilities to areas where cellular networks are not accessible
Supports gpsOneXTRA Assistanceâ„¢ technology which provides enhanced operation for Standalone-GPS Works in all types of terrains and dense metropolitan areas
Eliminates traditional lag to first “fix” on location
Supports IS-95A/B, CDMA2000®, CDMA2000 1X, CDMA2000 1xEV, GSM, GPRS, and WCDMA (UMTS) networks
Compatible with QUALCOMM’s QPoint™ positioning software for location servers as well as other servers


i found In FCC document testing the TITA100

Note 2. Attached image, but I didn’t found any testing for the GPS.


give some hope

[Murph24]

Hey, here are more pics of the Mogul in the nude. Sorry they aren't the best, my camera is POS. I'm pretty sure I found the real cell antenna, so hopefully the thing 94tbird found is a GPS antenna. Although, shouldn't there be a combo BT/WI-FI antenna of some sort as well? The underside of the board appears just to be the chips covered by shields. I popped a few of the shields up out of curiosity.

Photos are here:
http://s184.photobucket.com/albums/x14/Murph244/
(sorry, you'll to use your imagination on the link. " - "are supposed to be dots. They won't let me post urls yet...)

argov, I wouldn't think the FCC has to test a GPS antenna in this type of application as it doesn't transmit anything. Then again I'm no expert.

My fingers are crossed.

[pzztgotbagz]

Murph i updated ur post and made it a url......

[gigatigga]

That looks almost exactly like it! i'm waiting to hear from shadowmite, but i think it totally has it.

check out irc.freenode.net #shadowmite for the latest info.

[pzztgotbagz]

giga i think thats the wifi/bt antenna

[shadowmite]

Confirmed, thanks for getting the shot of those chips... It is, sorry to say, a wifi antenna... The 6800 is not capable of standalone GPS... This is quite upsetting as this is based on a phone which is supposed to have it. I'm sorry for getting everyone's hopes up...

Murph24, you're the man, thanks for doing this for everyone!

[aughsum]

my mogul should be here shortly.. at which point i would then buy a bt gps adapter..

I wont personally fellate whoever gets the internal working, but ill hook you up.

[luv2chill]

What I don't get is this:

Isn't the AGPS chip using satellite data as well as tower triangulation and muxing all of that info together (with aid from the carrier's location server) to give you highly accurate positional data for things like Telenav and E911?

So if the chip is getting GPS satellite data for AGPS then why does a lack of an antenna preclude using it for standalone GPS? What is different about the standalone mode that requires an antenna?

[Pibe38]

I believe AGPS requires BOTH to triangulate a position whereas GPS can do it on its own... I could be wrong though.

[fesstech]

Maybe our feelings are wrong about A-GPS.

1.) Possibly assisted GPS is "full satellite GPS with assistance" meaning that when a phone cannot obtain a satellite fix, then it can triangulate a position. For example, use in a building during emergency situations.

Or

2.) A-GPS chips do not have an antenna, or have one that is not tuned to accept the number of satellites required for a fix of <10m, therefore it also uses triangulation to better resolve the phones coordinates. (maybe a space saving cheaper way to go)