Anybody experiencing with dropped satellite reception using garmin mobile xt? It was working fine initially, but now the gps signal keeps dropping, 'lost satellite reception'. After capturing the satellite signal, it will say 'lost satellite reception', and it keeps restarting. Please anyone experiencing the same problem? I'm afraid it's the gps receiver from the phone that is faulty. Any advice is really appreciated. Thanks.
Did you do any tweaking? Make you you did not enable A-GPS w/ any tweaking tools
jackleung said:
Did you do any tweaking? Make you you did not enable A-GPS w/ any tweaking tools
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Thanks jackleung I had similar problem but fixed by disabling A-GPS
Thank You!! But why would enabling the A-GPS cause dropped satellite signal? Just curious.
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Hi
I'm developing a GPS application to assist devices with onboard GPS chips (eg. Trinity) to obtain a fix faster.
My application works fine thus far, however I have a question in regards to TomTom. Every other application works instantly, ie. they report the fix obtained as "Valid" and start displaying the location on their GUI almost instantly.. EXCEPT for Tomtom.
Does anyone know what TomTom looks for other than a 2d/3d fix? It detects its receiving information yet hangs on "Lost GPS signal since xxx seconds" for around 2-4 minutes and THEN it starts working fine.
I'm confused as to why this is only happening with TomTom so any information you guys have would be greatly appreciated.
I'm not sure what your application does to assist, or which other applications work fine. But I'll take a guess. Tom-Tom is a stand alone GPS app and the others use assited GPS?
Satellites transmit ephemeris data, data about the orbit of the GPS satellites, every 30 seconds. Tom-tom must lock on to the salelliites and wait a minium of 30 seconds to recieve this data. If the other GPS applications use assisted GPS, they get help from a location based server (LBS) run by the cellular provider. The LBS sends the ephemeris data and other data to help the GPS lock onto the satellites quickly, so the GPS doesn't have to wait.
I wrote a program (TrackMe) that turns off the screen while the GPS keeps running. However, on this PDA the GPS disconnects. As far as I know this is the only PDA that shows this problem.
I have also tried with other programs and I still have the same problem.
As soon as the screen is off, the GPS also disconnects.
Do you guys know if there is registry hack or something to avoid this?
Thanks
Don't know about any way of disabling this but can confirm that if garmin xt is running and i lock the phone, it speaks "lost satellite reception" as well.
Thanks for replying.
Yes, I tested Garmin XT and Route66 and I got the same problem.
There has to be a setting or something on Windows Mobile to disable standby state when turning off the screen.
In case somebody in interested on this... if you use the GPS Intermediate Driver instead of a COM port directly, the GPS will not disconnect.
Can I turn off the phone with GPS-connection on?
Backgroung: I use the phone partly as GPS-tracker and there is often no mobile connection. This uses battery power which I need, if I have the GPS on for a long time.
Can any body help with a hint, a registry edit or tweek?
Thanks.
Jogi-Bar said:
Can I turn off the phone with GPS-connection on?
Backgroung: I use the phone partly as GPS-tracker and there is often no mobile connection. This uses battery power which I need, if I have the GPS on for a long time.
Can any body help with a hint, a registry edit or tweek?
Thanks.
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Have you tried switching the phone to Airplane mode? That should turn off all of the radios. Might turn off the GPS receiver as well though...hmm
pgonza02 said:
Have you tried switching the phone to Airplane mode? That should turn off all of the radios. Might turn off the GPS receiver as well though...hmm
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That exactly the problem: Under airplane mode the GPS will be disconnected.
Anybody an idea how to turn off only the phone but not the GPS?
Jogi-Bar said:
Anybody an idea how to turn off only the phone but not the GPS?
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My comm manager has Phone as an option to turn off, this would keep GPS active.
OK, it works for the GPS-tracker but TOM TOM gives no connection due to flight mode. But this is not a big problem, but strange.
Jogi-Bar said:
OK, it works for the GPS-tracker but TOM TOM gives no connection due to flight mode. But this is not a big problem, but strange.
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Does TOM TOM have a triangulation or traffic setting? If so disable it, otherwise that is strange as it would not need to access the cell towers for anything.
Bruce Inman said:
Does TOM TOM have a triangulation or traffic setting? If so disable it, otherwise that is strange as it would not need to access the cell towers for anything.
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Don't know where to check in TOM TOM. Looks as would such an adjustment not be possible.
Jogi-Bar said:
Don't know where to check in TOM TOM. Looks as would such an adjustment not be possible.
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I run iGo and confirmed I can still get GPS signal when phone is set to off in comm manager.
check all of your TOMTOM settings for anyhting that would require data, such as "use cell towers for better location" or "traffic updates" etc.
Bruce Inman said:
I run iGo and confirmed I can still get GPS signal when phone is set to off in comm manager.
check all of your TOMTOM settings for anyhting that would require data, such as "use cell towers for better location" or "traffic updates" etc.
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Thank you for this info, but TomTom has no such function or possibilities as described by you ('Traffic-Info' is deactivated). It detects 'Airplan mode' and gives not GPS-connection. I think only a deep adjustment in the initialization could solve this item, but I don't know how.
Hi guys,
I have some trouble with GPS, it's take very very very long time to establish appropriate connection to some satellites. On Windows mobile there was app which download data about positions satellites from INTERNET and speed up the connection process. Then have exist some this solution for android platform? and one more thing, have some soft which can show satellites connected etc (not need any navigation or compass just some thing for verify)..
Any ideas?
Volis said:
Hi guys,
I have some trouble with GPS, it's take very very very long time to establish appropriate connection to some satellites. On Windows mobile there was app which download data about positions satellites from INTERNET and speed up the connection process. Then have exist some this solution for android platform? and one more thing, have some soft which can show satellites connected etc (not need any navigation or compass just some thing for verify)..
Any ideas?
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Click to collapse
Search for "gps.config"!
Download tis app called gps status...you can download satellites thru its settings or you can reset ur gps data in it...downloading agps data dramatically improves locking speed..check it out...hope it helps
Setings> GPS&Sensors > Auto-download agps data
I am having issues with some builds sometimes to get a fix.
Some android builds make WM GPS not to fix anymore even. The only way to make it work on WM again is to re-flash your radio and not run android again (Android seems to do something to the GPS that makes it stop working on WM).
Perhaps I am wrong but this is my observation.
nuclearfissure said:
Download tis app called gps status...you can download satellites thru its settings or you can reset ur gps data in it...downloading agps data dramatically improves locking speed..check it out...hope it helps
Setings> GPS&Sensors > Auto-download agps data
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Yep looks that..
Thanks, it worked very well for me.
I have also raised this question previously.
With GPS's there are two additional technologies that help with speeding up a lock.
The first often known as QuickGPS. Normally when you GPS finally find its first satellite it needs to download a lot of satellite information including where all the other satellites are in relationship. This can take a minute or so and if it is interrupted will need to restart. Thats why you get a quicker lock when stationary versus moving. What QuickGPS does is download this information via the internet and store it locally.
The second is A-GPS. When your GPS starts it is listening trying to find anyone of over 30 satellites. This can take time. Once it find one satellite it then needs to repeat for another 2 before being able to identify where it is and what other satellites are in the area (From Step 1). What A-GPS does is find out where you are via cell sites etc. Once it has an approx location it then refers to the QuickGPS data to then workout what satellites are in the area. In then proceeds to only try to lock on local ones which is a lot quicker.
All the fixes for the HD2 gps relate to updating the NTP server setting in the GPS conf file. The current setting is fine however refers to an american time server. End of the day it is still going to give you a time sync to within a few milliseconds. Refering to a local NTP (Time Server) will give the exact same data.
Waste of time.
I believe the slow GPS lock is due to one of these technogies not working. I suspect it is a-GPS however have yet to confirm either way that the GPD data is being downloaded and saved in the right place.
Hope this helps.
Yes, I thinking primary about the fist option QuickGPS.. I was able on my HD2 wit win get the GPS lock for 7-10 satelelites in let then 30 second.. without that 5-10 minutes, then I thing is very userfull to have it somehow working on android too..
My AT&T Note 3 started to have GPS problems (likely when switching from 3G/4G/LTE during drive)
While there seems to be no good fix for this issue, I've found that simply turning off GPS and on will restore GPS instantly.
So I thought I'd use Tasker to do this:
whenever "GPS Signal LOST" restart GPS.
Problem is I'm not sure if there is a function/variable to flag "GPS signal lost".
Can anyone advise?
Thanks