i am running the GPS Test app on two Android phones: an HTC Inspire 4G and an HTC Desire. Both are exhibiting similar symptoms:
1. I get several satellites In View, maybe as many as 10 or 11
2. All the satellites also show as In Use (all 6 or 7 or 8 or 11)
3. The SNR for all Satellites is between 15 and 30
4. At the top left GPS Status shows as GPS On but the little circle is YELLOW
5. At the top middle, Accuracy shows as 0 and does not update
I believe that In Use indicates a "lock", but it seems that I am not getting any actual location information. My main problem is with items 4.and 5., as I did see my phone have a GREEN circle once, and I also saw the Accuracy field update with actual numbers.
What exactly does my yellow circle and lack of accuracy reading mean? And how can I fix it?
Related
Why is the GPS accuracy for my Nexus S rounded off to 5, 10, 30 and 50 meters? Is there any way to modify this so that it shows the exact accuracy?
They are not sure/accurate, thats why they round up.
Logically you would say "I think there are 200 sheeps in the yard"
rather than saying "I think there are 198 sheeps in the yard".
Same reason
It isn't like that on my Nexus One. It shows accuracy like 1m, 2m, 3m, and other digits. On the nexus s however, it is always either 5, 10, 30 or 50m.
This causes quite a few problems during GPS navigation because you occassionally jump between 5, 10 and 30m. On the nexus one, there's no such problem because lets say the accuracy is 7m, it will show 7m. If it's 11m, it will show 11m. On the nexus s, it will show 10m and 30m respectively.
Sent from my Nexus S using XDA App
It's possible the chips in the phones do not report accuracy in meters.
GPS units can report accuracy as Dilution of Precision:
http://www.dashdyno.net/tech/GPS/gps_location.html
http://www.papyrus.co.il/FAQ/dilution_of_precision.htm
The lower the number, the more accurate the fix. Using simplified math, if your phone's GPS in an open field and perfect conditions had an accuracy of 5 meters, a dilution of precision of 1 may cause it to report 5m*1 DOP = 5m accuracy.
If the satellites became too close to each other, your horizontal DOP may grow to 2. This could be 5m*2 HDOP = 10m accuracy.
Many receivers output separate DOPs for Latitude, Longitude, and Elevation, but I suspect that the software just uses the maximum number for HDOP and outputs that. Unless you are averaging scans over a long period of time or using an advanced filtering algorithm, it's just a number displayed to a user.
Has anyone else had any issues with GPS and/or Ingress?
Here's the problem. While playing Ingress and being tethered to my phone, the GPS usually cannot get a lock on ANY satelites. I mean absolutely 0. Occasionally I'll end up moving but we're talking hundreds of meter jumps, usually taking anywhere from 20 seconds to sometimes up to 5 minutes for 1 to occur (in the 5 minutes one, I was nearly 2 miles away from where it last jumped.....).
Now, you'd think there was something wrong with my GPS, right?
Well, how come I can go and open my Google Maps application, and within 15 seconds have a lock on 5 to 8 satelites and have correct placement as well?
I've tried this a number of times, where Ingress essentially has me no where near where I should be. I exit out of Ingress and go to Google Maps and nearly immediately it shows my current location exactly without issues.
I've tried nearly everything I can think of to get this fixed. Overclocking/underclocking and such make no real difference here (hoping that maybe there wasn't enough processor speed or the graphics were too intense), has little to no effect as one would hope. Even using a few GPS tools (such as GPSFix, GPS Status and Toolbox, etc...) provide little insight into the problem, as they just confirm my fears, that inside Ingress I get 0 satelites, inside any other GPS application I'll get a lock on 5 to 8 satelites in no time.
Does anyone know of a way that I can truely monitor the GPS while using another application? I'd like some kind of log or something to help figure this out.
darkhawkff said:
Has anyone else had any issues with GPS and/or Ingress?
Here's the problem. While playing Ingress and being tethered to my phone, the GPS usually cannot get a lock on ANY satelites. I mean absolutely 0. Occasionally I'll end up moving but we're talking hundreds of meter jumps, usually taking anywhere from 20 seconds to sometimes up to 5 minutes for 1 to occur (in the 5 minutes one, I was nearly 2 miles away from where it last jumped.....).
Now, you'd think there was something wrong with my GPS, right?
Well, how come I can go and open my Google Maps application, and within 15 seconds have a lock on 5 to 8 satelites and have correct placement as well?
I've tried this a number of times, where Ingress essentially has me no where near where I should be. I exit out of Ingress and go to Google Maps and nearly immediately it shows my current location exactly without issues.
I've tried nearly everything I can think of to get this fixed. Overclocking/underclocking and such make no real difference here (hoping that maybe there wasn't enough processor speed or the graphics were too intense), has little to no effect as one would hope. Even using a few GPS tools (such as GPSFix, GPS Status and Toolbox, etc...) provide little insight into the problem, as they just confirm my fears, that inside Ingress I get 0 satelites, inside any other GPS application I'll get a lock on 5 to 8 satelites in no time.
Does anyone know of a way that I can truely monitor the GPS while using another application? I'd like some kind of log or something to help figure this out.
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Click to collapse
Hello friend. It has been almost a year since you have posted, but I've gone through the same hardships, on different device though.
See my post here, if you still need some solution and see if it helps.
Hello.
I want to report on all technical forums, an issue that I have encountered in MTK6753. It's about the GPS module of the chipset in some navi apps.
I own a VOYO Q101 Phablet (chipset MTK6753, 2GB RAM, 32GB Flash-Memory), with Android 7.0.
Despite the fact that the chipset model is MTK6753, when reading the prop.file I can see that the GPS module is based on MTK6735.
Scenario:
Firstly, we need to get the "GPS Locker" app from Store, in order to get our "real-time" no. of satellites in the notification bar.
Secondly, we need to install Waze and Google Maps (two navi apps, well known in Europe ans US) - in order to do the test.
1. We are turning on the Location. We can choose any option from "Device only (GPS module only)", "High accuracy". The following problem occurs in both situations. Let's choose Device only.
2. Open GPS Locker and get a lock. Very fast, I get a lock in 3-5 seconds (outside) and 10-15 seconds (inside a building).
No. of satellites: 15/17, 16/17, sometimes 18/20. So, no problem with the antenna or other stuff ... Okaaay.
Now, 3. Open Waze or Google Maps and, in the next second (immediately) slide down the notification bar (in order to see the GPS Locker status).
We can see that the no. of satellites decreases drastically, sometimes till 0/20 satelittes ! So, we have no GPS in navi apps. This is the problem I want to emphasize.
Very good reception in GPS status apps (like GPS Locker, GPS test, etc.), but when opening Waze or Google Maps we have a huge drop in the number of satellites available.
Sometimes, it goes down till 0, and after 10-15 seconds fluctuates between 3-4-5-6 satellites, then suddenly back to 0, etc., etc.
We can exclude:
- a problem in GPS antenna (than, I shouldn't have 18-19/20 satts in GPS Locker)
- a hardware problem
I have tried some settings from MTK 65xx GPS tutorial (settings in Developer Mode, Engineering Mode), but everything is okay (outside of a navi software .... )
Where is the problem? Have you encountered this problem?
Up
Fitness tracking apps the past few weeks (Endomondo, Strava) have really poor GPS tracking - the track jumps around and is very jagged. The fitness apps are not running in low power mode of any sort. This occurred before and after the Android P update, and a full system wipe after upgrade to Android P did not fix it.
When looking at GPS Status & Toolbox, GPS lock only takes ~2 seconds but accuracy never goes lower than 9m. It is seeing ~25 satellites and fixing on 20. Resetting cached GPS data does not improve it.
Side by side with an S9+, the S9+ consistently gets 3-4m accuracy. Any idea what other steps I can take to improve accuracy? It hasn't always been this way, and I haven't changed anything like the case that might impact reception.
Hi, I just downloaded SatStat, an app from F-Droid that shows how many GPS satellites are connected. When indoors and standing by the window it shows multiple "Satellites used in fix" (the blue dots) but when I open Waze all I get is "Please proceed to highlighted route".
Why is Waze apparently not showing any satellites connected while SatStat shows lots of connections?
Am I doing something wrong, misunderstanding something or need to adjust a setting, etc?
I have an Asus Zenfone 8.
Thread closed at OP's request