htc touch / no gps lock without cell phone service?

[kwatts]

I'm having trouble getting a GPS lock when the cell phone service is disabled. As soon as I enable cell service, it locks easily.

Does the phone need cell service or use it to help with GPS?

Thanks, and any input will help. Planning a trip in europe and need the GPS service and not the cell service.

[hetaldp]

Yes aGPS (Assisted GPS) require to connect to Sprint Server to Download Satelite Position Data to get a Fast Fix on GPS

[stevedog1]

Originally Posted by hetaldp

Yes aGPS (Assisted GPS) require to connect to Sprint Server to Download Satelite Position Data to get a Fast Fix on GPS

This is not completely true. The touch MSM 7500 chip also works as a stand alone GPS even if cellular service is not available. With aGPS in our Touch, a cellular connection simply makes positioning faster and more accurate, but is not required. The only reason it isnt working for you is because you put the phone into airplane mode which disables ALL radios, including the GPS. When youre in Europe do not disable your radio. You will not get cellular service but your GPS will still work. Just make sure you leave the radios active, and you'll be fine

[tlcasper]

The HTC Touch gets GPS lock in airplane mode. There is a long discussion about it in another thread. http://forum.ppcgeeks.com/showthread.php?t=29594
The GPS can get a lock with no service, and if you have installed maps like Garmin XT you can navigate.

[stevedog1]

Originally Posted by tlcasper

The HTC Touch gets GPS lock in airplane mode. There is a long discussion about it in another thread. http://forum.ppcgeeks.com/showthread.php?t=29594
The GPS can get a lock with no service, and if you have installed maps like Garmin XT you can navigate.

I realize that. But obviously he was out of satellite view which is why he couldnt get a lock with airplane mode on. At this point he would then require a-gps to kick in so that you can triangulate to get a lock on your location until he is able to get in satelitte view.

[dutchman71]

My built in GPS will not work on an airplane. (phone is not in airplane mode) It works great when anywhere else in the country where I have service...

When I use my bluetooth GPS receiver with my Touch on an airplane it works fine... (phone is not in airplane mode)

The current setup seems to really need cell coverage... I will try it out in Europe later this month but am afraid it will not work without cell phone coverage...

[stevedog1]

Originally Posted by dutchman71

My built in GPS will not work on an airplane. (phone is not in airplane mode) It works great when anywhere else in the country where I have service...

When I use my bluetooth GPS receiver with my Touch on an airplane it works fine... (phone is not in airplane mode)

The current setup seems to really need cell coverage... I will try it out in Europe later this month but am afraid it will not work without cell phone coverage...

The Built in GPS on your Touch is not sensitive enough to get a GPS signal while Flying in a plane. Your surrounded by electronics and your moving too fast to actually get a lock/fix on your location. Your bluetooth GPS is BY FAR a hella lot more sensitive (probably SirfIII). Our phones built in A-GPS (Qualcomm MSM 7500) work in standalone mode as well as in assisted and does not require a cellular connection to obtain a sattelite fix and navigate. If your are standing outside in plain view of the sky and cannot get a GPS fix (in airplane mode) then something is wrong with your setup.

Have you used the PPST.exe fix found in the windows/PPST.exe directory to provision your GPS?

[tlcasper]

Originally Posted by stevedog1

I realize that. But obviously he was out of satellite view which is why he couldnt get a lock with airplane mode on. At this point he would then require a-gps to kick in so that you can triangulate to get a lock on your location until he is able to get in satelitte view.

Please reread the original post in this thread. He is not out of sat. view, as he states, "I'm having trouble getting a GPS lock when the cell phone service is disabled. As soon as I enable cell service, it locks easily."

Note the words, "disabled", and, "enabled".

[stevedog1]

Originally Posted by tlcasper

Please reread the original post in this thread. He is not out of sat. view, as he states, "I'm having trouble getting a GPS lock when the cell phone service is disabled. As soon as I enable cell service, it locks easily."

Note the words, "disabled", and, "enabled".

Dude. I am not stupid, and I can read. Why don't you offer some helpfull information rather than critisize what I am saying. If you have nothing to offer to the issue then youre better off just keeping your mouth shut. No one wants to hear it. Being a prick is highly frowned upon in here, and you my friend are just that, a prick.

Anyways, I said that he was obviously out of satelite view due to the fact that he wasnt getting a lock. Thats why I said that. Did you read my last post? Something is wrong with his setup Obviously because he does not need a cellular connection to obtain a lock or to navigate (with TomTOm...Garmin, or other programs with preloaded maps. The only thing that makes sense is that he might be trying to use GoogleMaps, or Live Search for Navigation, and those two require a data (cellular in this case) to download the maps. So if thats what he is trying to do then he would just get a blank screen. Even though the phone is recieving a GPS signal it cant be interpreted in the form of a map location because it cannot download one without a cellular conection. Thats what I can make of it anyways. Hope that helps.

[jethro_static]

Oh I wanna watch this. Seems like somebody learned something from me.LOL