gps question

turbochris · #1 (**permalink**) 03-05-2009, 09:33 PM

does the gps built into the touch pro work from satellites or does it work from cell tower triangulation?

**Rusty Duck** · #2 (**permalink**) 03-05-2009, 09:34 PM

Quote:

Originally Posted by turbochris

does the gps built into the touch pro work from satellites or does it work from cell tower triangulation?

It is satellites. Why do you ask?

**HBOOT** · #3 (**permalink**) 03-06-2009, 12:17 AM

I believe he asked because he simply didnt know...

turbochris · #4 (**permalink**) 03-10-2009, 04:27 PM

Yes that's right, I didn't know

I have a bluetooth GPS left over from my XV6700 and I was going to use it if the GPS in the touch pro worked off the cell towers. I wouldn't think the cell tower GPS would perform as good as the satelite based GPS

Asphyx · #5 (**permalink**) 03-10-2009, 04:57 PM

I'm not entirely sure but I do believe the TouchPro can do both GPS and aGPS.
I know the Verizon flavor does because it works with VZ Navigator...
There are some posts over at XDA about enabling aGPS as well.

loren646 · #6 (**permalink**) 03-11-2009, 11:12 AM

i have no idea.

a_c_s · #7 (**permalink**) 03-11-2009, 02:06 PM

It works with both...the stock configuration is aGPS which means it uses a combo of cell towers and satellite data to pinpoint your location...this obviously uses data, and in roaming areas or places with spotty coverage, would be a hit or miss solution...Sprint's built in Nav program works this way...BUT, there are some great options like Garmin XT, iGo 8 and Tom Tom all of which work really well on the phone and can work with pure satellite signals...my Garmin XT can use either aGPS or GPS...I let it start in AGPs mode and then turn off data and let it cruise in pure GPS mode...better on battery life that way...

Asphyx · #8 (**permalink**) 03-11-2009, 03:20 PM

I'm not sure that the Garmin (or aGPS in general) uses data connection...IT does however use the cell radio so if you are roaming ibn old nodes (or in a tunnel without Cell service) you will lose your lock with aGPS,
You'll lose the GPS lock in a tunnel as well...

ACS did you have to set Garmin to use aGPS? I have never seen a setting for that just a setting to pick the GPS reciever to use...Internal or Bluetooth...

**Mylt1** · #9 (**permalink**) 03-11-2009, 08:18 PM

my VZN TP does not use towers, just the sats. if its trying to download the aGPS data(on my titan at least) you will see the data arrows. as it stands i am only using the GPS chip, i havent seen an aGPS fix for the TP but i really havent been looking.

**kyle4269** · #10 (**permalink**) 03-11-2009, 08:22 PM

Quote:

Originally Posted by Mylt1

my VZN TP does not use towers, just the sats. if its trying to download the aGPS data(on my titan at least) you will see the data arrows. as it stands i am only using the GPS chip, i havent seen an aGPS fix for the TP but i really havent been looking.

I don't think aGPS is working for the Verizon TP right now..