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Has anyone tested how long the battery lasts when using GPS?
PaulusUK said:
Has anyone tested how long the battery lasts when using GPS?
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I can't imagine any reason to just run the GPS.. What context? Car navigation? GPS Tracking? What?
The Tilt used about 120mA just for the GPS, I suspect the TP2 would be very close to that.
As a handheld GPS for walking.
I use a program called Memory Map which has terrain maps and plots routes, waypoints etc.
The GPS would need to be on all the time, but the screen could be off and just turned on when I need to glance at the route/map
I used to get just under 2 hours from my Diamond and about 2 1/2 hours from my m700 - so I had to carry some external batteries
PaulusUK said:
As a handheld GPS for walking.
I use a program called Memory Map which has terrain maps and plots routes, waypoints etc.
The GPS would need to be on all the time, but the screen could be off and just turned on when I need to glance at the route/map
I used to get just under 2 hours from my Diamond and about 2 1/2 hours from my m700 - so I had to carry some external batteries
Click to expand...
Click to collapse
For thst sort of usage, I'd honestly suggest getting a bluetooth GPS unit. Does MUCH better under cover (trees, urban 'trees', etc) and takes a huge load off of the device.
I've gone on 3-4 hour hikes using TrackMe, which sounds like a similar program, and was only down 20% on battery. That'd get me WAY more battery life than my legs had in 'em.
Good luck, I'll check out Memory Map. I'm a geogeek, I collect all sorts of GPS related software.
PaulusUK said:
Has anyone tested how long the battery lasts when using GPS?
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Click to collapse
I have a question regarding GPS. Once you've started using GPS, do you have to manually turn it off (like WiFi or BlueTooth) or does it cycle off automatically?
hempel said:
I have a question regarding GPS. Once you've started using GPS, do you have to manually turn it off (like WiFi or BlueTooth) or does it cycle off automatically?
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Click to collapse
it will turn off automatically when you exit the program
khaytsus said:
For thst sort of usage, I'd honestly suggest getting a bluetooth GPS unit. Does MUCH better under cover (trees, urban 'trees', etc) and takes a huge load off of the device.
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Click to collapse
Wouldn't bluetooth communication also drain the power?
Which would be worse - the BT or the GPS working?
TP2 GPS battery usage
My TP2 lasted 2.5 hours using Memory-Map in full mapping mode, where I had to plot map I created on PC.
Tunc
superflyboy said:
Wouldn't bluetooth communication also drain the power?
Which would be worse - the BT or the GPS working?
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Click to collapse
erm... Perhaps not you, but I answered this very question somewhere else already.. anyway...
Bluetooth is very low power. And obviously if I'm saying the GPS uses hordes of power and to use a Bluetooth device because of power, the internal GPS is worse (much worse). How much worse? Same workload, same software, BT vs internal GPS on the Kaiser (same GPS as TP2) was a difference of 100mAh. 8.3% more battery drain per hour.
Bluetooth GPS also has other advantages...
Faster fix
More accurate
More sensitive
More options (in terms of which GPS you get and what features IT has)
Disadvantages
One more small thing to carry around
In terms of features, I keep saying I'm going to upgrade my BT GPS to the Columbus V900 (or other like models). It'll act like a normal BT GPS, or self-logger to a memory card, even a 'stealth' mode which logs a point every N minutes which you could effectively let run for a week without running out of battery and years before filling a 1G memory card.. Also you can attach voice notes to a coordinate, or 'mark' a spot with a button push, both of which you could refer to later by viewing the resulting data in Google Earth or other means.
I am losing my mind with my GPS. I have had my TP2 since last August and I have never been able to find a solution to the horrible GPS quality. I have tried matching up the ports, changing the ports, different software, hard-resets, I have installed the hotfix, I have called HTC, but things are still terrible. The only thing that ever cause an improvement was manually choosing the ports and such, however the improvement was only slight.
I have used GPS on Google Maps on the iPhone under the same provider (Optus in Australia) and the moment I opened the program there was always a GPS lock, not once did I ever have to wait or get it ready, but on my TP2 using Google Maps (or any other application), sometimes I am forced to wait minutes before getting a signal, if at all. I have searched and searched for a resolution but im not finding any. I just don't understand what I paid top dollar for, I chose the TP2 over the Xperia for it's GPS capabilities, but its hardly capable. I feel as if I am out of options, i've had it for too long to get my money back; I would really appreciate your thoughts on this?
I use iGuidance2009 and have no problems, though I do update quickGPS regularly. Google Maps I dont know about as I dont use it.
This has been a problem ever since the Touch Pro. My old Kaiser never had these horrible GPS issues, Touch Pro and Touch Pro 2 do.
What I have found to work well is to toggle the phone in the Comm manager when GPS is not working correctly.
Also, if you can get AGPS to work correctly, that does wonders for GPS lock time speeds! It would take minutes before, but once AGPS is set to work correctly, I can get a lock in 10 seconds! You have to go into the registry and make sure AGPS is set to use the right data connection.
This only improves acquisition times, it does not reduce the lag which was introduced in the original Touch Pro.
Google maps is probably the worst test app for speed. I use TomTom and iGo on Juicy R5 now, default rom before, and both have no lag. Google maps lags as much as 30 seconds, Garmin and also a few free gps apps I tried lagged 10-15 secs. So this is really, really app dependent. Don't know why.
As for lock speed, agps is a must. If QuickGPS/SEASGEE isn't working then you get the same lock speeds that you would get on old, old car gps systems (up to 5 mins to get a lock).
petard said:
This has been a problem ever since the Touch Pro. My old Kaiser never had these horrible GPS issues, Touch Pro and Touch Pro 2 do.
What I have found to work well is to toggle the phone in the Comm manager when GPS is not working correctly.
Also, if you can get AGPS to work correctly, that does wonders for GPS lock time speeds! It would take minutes before, but once AGPS is set to work correctly, I can get a lock in 10 seconds! You have to go into the registry and make sure AGPS is set to use the right data connection.
This only improves acquisition times, it does not reduce the lag which was introduced in the original Touch Pro.
Click to expand...
Click to collapse
It's just you with such serious problems, maybe your phone has problems..
AGPS is key to getting a fast lock. That's where you should be focused.
Some registry tweaks may improve your fix. It rocks for me and others owners, but not sure for every body.
take a look there:
http://forum.xda-developers.com/showthread.php?t=523676
and there:
http://forum.xda-developers.com/showthread.php?t=524655
It could be a good beginning ;-)
khaytsus said:
It's just you with such serious problems, maybe your phone has problems..
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Click to collapse
No, its not. Everyone has position lag. It isn't unbearable, but it is pretty annoying. You take an exit on a highway and it takes about 3 seconds to realize you took it sometimes. What is really weird is it keeps going on one road while the arrow turns in the direction you are headed until it finally places you on the correct road. That part may be due to TomTom though, but I'm not sure.
petard said:
You take an exit on a highway and it takes about 3 seconds to realize you took it sometimes. What is really weird is it keeps going on one road while the arrow turns in the direction you are headed until it finally places you on the correct road. That part may be due to TomTom though, but I'm not sure.
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Click to collapse
As per my personal experience, this is due to internal GPS data filtering by WM, so tweaks recalled by woaloo (I mean reducing of WM's GPS-related data buffer sizes) can help here.
Be careful however with it as too low values will drives GPS to become "nervous" - your position will become unstable, starting to jump randomly with a radius of few hundreds meters.
Another reason of the lag is (most likely) related to the navi software one uses. I use iGO8 and there are for sure settings moderating position behavior from pretty quick (but unstable) to rather slow but noticeable more stable. I personally prefer this last one.
To the original poster, have you tried running a program like VisualGPS? If so, how much signal strength is it showing for the satellites? I see as high as 39 when indoors. I get quick and accurate locks and I am very happy with the GPS performance. I have to believe that you have a hardware problem.
As for the thread drift on the few seconds delay, yes, that is there, but not a big issue.
Personal experience with the GPS... initially could never get it to connect, basically because every time i tried i was inside behind venitian blinds..... never use GPS before so my bad.
Walked outside and it was great. About 10 secs or less to lock, the lag is only a couple of seconds, no more than 5 secs. Added the tweeks and it was improved slightly. The accuracy was within 5 meters or less (used the property boundries in google maps to verify).
Moving at high speed it was pretty good too.
Compared to other phones and iPhone borrowed from a mate there is negligable difference in the accuracy and lag.
BRETT
So the GPS performance on the Touch Pro 2 is not that much better than the Touch Pro? The receiver on the Touch Pro is extremely weak.
At my work we have a GPS re-radiator for use with the equipment that we build. Indoors using the re-radiator I can get a lock in seconds with 11 satellites (the signal is abnormally strong). Outdoors, I'm happy if I can get a lock with 7.
worwig said:
To the original poster, have you tried running a program like VisualGPS? If so, how much signal strength is it showing for the satellites? I see as high as 39 when indoors. I get quick and accurate locks and I am very happy with the GPS performance. I have to believe that you have a hardware problem.
As for the thread drift on the few seconds delay, yes, that is there, but not a big issue.
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Click to collapse
I did try something like that, not sure if it was VisualGPS but it showed me the strength of GPS signal and it was quite accurate with how the GPS appeared to be behaving.
I got the phone's motherboard replaced and that fixed the issue. Thank you all for the replies though, it was possibly faulty.
Have the new Energy rom on but used the GPS hotfix. Seems to have increased lock time considerably.
I'll keep an eye on it though in case the lock time increases...
Wonder if we can find an app that would imbed GPS co-ordinates in any pics we take... Got a Samsung S8300t as well & it does this though the GPS navigation software is non-existant....
ultramag69 said:
Have the new Energy rom on but used the GPS hotfix. Seems to have increased lock time considerably.
I'll keep an eye on it though in case the lock time increases...
Wonder if we can find an app that would imbed GPS co-ordinates in any pics we take... Got a Samsung S8300t as well & it does this though the GPS navigation software is non-existant....
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Click to collapse
One of the extra camera modes you can unlock in the TP2 is a geotagging mode that does exactly that. There's a number of ways to enable them...Rhodium Settings Tool has a switch for each of them individually (burst, sport, video share, and geotagging), or you can just run the cab below
....and, for anybody else on this thread who hasn't tried it already, I'd suggest checking out the cab fone_fanatic put together to help with GPS locks on the TP2, details HERE
Is there anyone who use defy GPS daily? Can you share which rom or any GPS tweak to make defy more accurate and responsive for navigation?
I have been testing defy GPS, it seems like its rather not accurate to pinpoint location. Accuracy show 4-9m, but often real position is off by 30-200m. For navigation, it's response time rather slow plus the inaccuracy makes it not reliable. My old windows mobile P3600 gives precise position when put beside defy while navigating.
For info, I have disable wifi in location setting. I know I have successfully download supl data. With data enabled, I can lock under 10 sec.
This inaccuracy had been a problem for CM7. I have tested stock froyo and gingerbread, and problem still there.
So, can anyone help here? Do you have the same problem, if not please share your rom version or tweak..
I've used mine a lot for gps, i just make sure to download agps data with an app called GPS test as soon as i can, then if i'm not moving too much from where i stopped gps for the last time it takes very little to lock.
I'm on CM7 and it never disappointed me in Italy, Germany, Netherlands, Belgium and France.
Any GPS fix i've tried did nothing good for me.
My defy lock fast. What bothers me is the accuracy.
Google maps shows accuracy 4-9m, but real position is off sometimes by 200m.
Sometimes it correct itself, other time, even if I waited for a few minutes, it didn't show my real position.
And I'm sure I disable Use Wireless Networks in location setting.
So how is your accuracy?
Relly good, thanks
Seriously, i've seen this mentioned quite often in the CM7 thread, but it never happened to me.
As said before, keeping agps data pretty updated to my position or close enough has always been enough for me.
Good luck in finding a solution that works for you!
GPS has been working perfectly for me under any Rom. Stock GB, CM7 and Stock Froyo.
In CM7 it locks pretty fast, always under 10 secs, after a few secs accuracy down to 3m. Works really good.
I only have GPS Status to download from time to time accurate AGPS data and that's all.
Thanks for the reply..
I have tried almost everything.
Tuning gpsconfig.xml and location.cfg, clear agps cache, restart before testing many value one by one. Tried many stock rom, take GPS files from milestone and milestone2 and the GPS still inconsistent.
Sometimes its accurate, but after turn off GPS for a few second, turn on again, its showing wrong position with accuracy shown as 4-9m, waited for some minutes, and still wrong. Sometimes its accurate for a few test, but after a few minutes, turn on GPS again, its showing wrong position again.
Tried also calibrate compass, even remove the compass driver, but still error.
There is a possibility of multipath error in GPS (bouncing signal from surrounding), but with easily lock to 5-6 satellites with 10-12 satellites in view, I suppose this can nullify error, as real for positioning, we only needed 4 satellites.
I hope there is someone out there know fix for this..
use this fix: http://forum.xda-developers.com/showthread.php?t=953630
Maybe it helps
pravarth said:
use this fix: http://forum.xda-developers.com/showthread.php?t=953630
Maybe it helps
Click to expand...
Click to collapse
Already tried.. even tested various value in gps.conf. No good..
Thanks.
bobo9900 said:
Is there anyone who use defy GPS daily? Can you share which rom or any GPS tweak to make defy more accurate and responsive for navigation?
I have been testing defy GPS, it seems like its rather not accurate to pinpoint location. Accuracy show 4-9m, but often real position is off by 30-200m. For navigation, it's response time rather slow plus the inaccuracy makes it not reliable. My old windows mobile P3600 gives precise position when put beside defy while navigating.
For info, I have disable wifi in location setting. I know I have successfully download supl data. With data enabled, I can lock under 10 sec.
This inaccuracy had been a problem for CM7. I have tested stock froyo and gingerbread, and problem still there.
So, can anyone help here? Do you have the same problem, if not please share your rom version or tweak..
Click to expand...
Click to collapse
MIUI rom allows you to enter your preferred satellite under ph settings ^^
Then use gps status app to manage a-gps state - I get anywhere from 10 - 30m accuracy
You are not alone
GPS accuracy on my Defy has been a concern since I bought it. Just like yours, it locks to 4-6 satellites and claims that it's accurate to 4 meters, but my real position is usually a block away. Other symthoms are:
- Accuracy improves with speed and becomes very good when traveling by car, very poor when still or just walking. The correlation between accuracy and speed should be the other way around...
- If there are more than 6 satellites in view, it locks to a maximum of six and then starts "jumping" from one set of satellites to another each two seconds or so. It does so even if the telephone is completely still. I think It should stay with the same satellites while not moving.
As you, I also tried all and every GPS fix script under the sun to no good, even filled a bug report for CM7 back in the day with no luck. It seems that a lot of people out there have perfectly working GPS (o so it seems).
This issue is quite strange though. I have a green lens Defy, and my wife has a Red lens one. We bought them several months apart and they both have the same accuracy issue, so it doesn't seem to be related to a bad production batch. I wonder if its related to geographic position (maybe it works worse in some countries, somehow)
Hopefully its a software issue and can be fixed.
I dont have this issue. Ive actually been sort of surprised at the accuracy of the GPS with CM7... it locks on within seconds (vs the minutes with Froyo). Almost instantaneous with WIFI and GPS on. And it is always accurate. Sorry to hear about your GPS troubles. It could be a hardware problem also?
I am really concerned about the GPS compass issue (not the magnetic one). It makes navigation applications like NDrive and Sygic unusable. While I am driving the nav app would suddenly recalculate the route on a different road then a few seconds later it comes back to my actual location, and it keeps doing that even if u are not moving.
This is really irritating, do any of u face a similar issue? Do u think its a hardware or a software problem?
mbushnaq00 said:
I am really concerned about the GPS compass issue (not the magnetic one). It makes navigation applications like NDrive and Sygic unusable. While I am driving the nav app would suddenly recalculate the route on a different road then a few seconds later it comes back to my actual location, and it keeps doing that even if u are not moving.
This is really irritating, do any of u face a similar issue? Do u think its a hardware or a software problem?
Click to expand...
Click to collapse
Install GPS status from market and clear agps data. Worked for me !
Sent from my HTC One X using xda premium
matmar said:
Install GPS status from market and clear agps data. Worked for me !
Sent from my HTC One X using xda premium
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Click to collapse
Can you please provide me with the market link, I really would appreciate it
EDIT: I got it, and cleared the agps data but still the same issue. The wierd thing is that while I stand still, the speed keeps increasing and descreasing at very high number.
I tested another one x and it was far more accurate and stable than mine I think mine is defective :S
Mine is quite amusing it says i'm at home then you will see it move at light speed and place my gps target in a whole other country whilst saying its got 5m accuracy, have tried clearing aps to make no diff
mbushnaq00 said:
Can you please provide me with the market link, I really would appreciate it
EDIT: I got it, and cleared the agps data but still the same issue. The wierd thing is that while I stand still, the speed keeps increasing and descreasing at very high number.
I tested another one x and it was far more accurate and stable than mine I think mine is defective :S
Click to expand...
Click to collapse
Pyung said:
Mine is quite amusing it says i'm at home then you will see it move at light speed and place my gps target in a whole other country whilst saying its got 5m accuracy, have tried clearing aps to make no diff
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Click to collapse
+1: GPS is unusable...
escalator said:
+1: GPS is unusable...
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Click to collapse
The best way to test GPS is to put the phone in airplane mode, turn off GPS, and reboot it. After it reboots then activate GPS. That way it won't be using aGPS (wireless or Wi-Fi) and be relying solely on the GPS chip for location.
Download an app from the Market called GPS Test. When I run it I see the phone's kind of screwy. It sees 16 satellites immediately (excellent) and locks on about half of them (average) but then keeps changing which satellites it's receiving from.
It will get down to 9' in accuracy which is actually very good but it's odd that it keeps shifting satellites instead of staying locked on the ones it has previously identified and read. I set a route in CoPilot using nothing but the GPS chip and it seemed fine; my origin remained stationary. When I go out later I'll actually try using it in the car for a full route.
It's really hard to say whether it's h/w or s/w at this point.
Edit: After doing all the above I noticed I lost a pretty hefty amount of battery. Looking in the battery stats Android OS was the number one battery user exceeding even the display. That's abnormal which leads me to guess the issue is probably s/w.
What is a "GPS compass", please? (There's no such thing.)
Used GPS for the first time yesterday, for a two hour trip with Sygic maps' 12.1 beta. Worked perfectly the whole way.
BarryH_GEG said:
Edit: After doing all the above I noticed I lost a pretty hefty amount of battery. Looking in the battery stats Android OS was the number one battery user exceeding even the display. That's abnormal which leads me to guess the issue is probably s/w.
Click to expand...
Click to collapse
That could be a red herring. A rather large issue has been discovered with the battery stats that it does not go down correctly when the phone is on standby (screen off). When it suddenly realises the true battery status, it plummets to the correct level.
Yeah. There is something strange going on with the compass and GPS.
Google Maps has my arrow moving around a lot and also changes direction significantly even when I'm stationary. Not sure what is going on there. There is a certain amount of uncertainty and jitter when using GPS but it should be smoothed out.
I've tried disabling the WiFi/Cell location system and only using GPS but it doesn't affect it. Resetting the AGPS data doesn't help either.
The GPS issue seems to be big and i use GPS and Navigation too often with my phone. Tonight or tomorrow i am getting my One X and i hope they will sort this out sooner.
zekit said:
The GPS issue seems to be big and i use GPS and Navigation too often with my phone. Tonight or tomorrow i am getting my One X and i hope they will sort this out sooner.
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Click to collapse
That's debatable. I have no noticeable issues when actually moving (even at walking pace), and get an accurate lock. When sitting still, the GPS does show slight motion, but only in the area immediately around my actual point, and even my dedicated GPS receiver does that to a degree. It's a fact of life that consumer GPS doesn't give better accuracy than a couple of yards.
I used Google navigation yesterday for a 25 mile trip. No issue. I've not tried it for walking but then I never really use it for that. Maybe I can have a go and report back.
Sent from my HTC One X using xda premium
I too am noticing an issue with GPS accuracy as detailed in my post here using sports trackers:
http://forum.xda-developers.com/showthread.php?t=1599057
Hard to say if its a software issue or hw issue... I havent "Tracked" myself over a long distance so it could be the GPS getting confused with only small changes in distance?
Can someone track themselves on a long-ish road that doesnt have many/any slow moving areas so we can see the accuracy of it?
I'd be curious to know what cases people with problems are using. We've already had one report of reduced wifi range with a third-party case, not beyond the realms of possibility that it could also reduce gps reception.
Sent from my Transformer TF101 using XDA
Guys, I just replaced my phone yesterday, I have to say the replacement has far more better accuracy than the old one. It seems to be a hardware defect and if you have the same problem then have it replaced asap.
To check, just download speedview, stand still outside with clear vew to the sky, and see how the speed jumps. If its between 0 to 5 and mostly 0 then you have a good unit, otherwise if goes to 20 then 40 and even 220!! then u definitely need to replace the device. I dont think any method u try will resolve this issue cuz its a hardware problem and not software.
+1: GPS is unusable...
and 1.28 yesterday did not better my gps stability
zilmer said:
and 1.28 yesterday did not better my gps stability
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Click to collapse
If GPS is unusable, you most likely have a hardware problem. Get the phone replaced.
Tiersten said:
Google Maps has my arrow moving around a lot and also changes direction significantly even when I'm stationary.
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Click to collapse
+1 to this as well, the compass isn't working correctly, maps showing me in completely different direction.
Got bored and decided to film it.
Makes me laugh
http://www.youtube.com/watch?v=hcbtRUHBo40
Sitting on my desk right under the window. Nexus one right next to it doesnt do this.....
Demented-Idiot said:
Got bored and decided to film it.
Makes me laugh
http://www.youtube.com/watch?v=hcbtRUHBo40
Sitting on my desk right under the window. Nexus one right next to it doesnt do this.....
Click to expand...
Click to collapse
That's funny to watch. Here's what I've found. When you download and view GPS Tracker you can see that the phone's not staying fixed to specific satellites and is instead bouncing around between them. The weaker the signal (indoors) the more it bounces. Outdoors with a clear signal it's fine. But because it's still locking on satellites, even randomly, it still maintains its accuracy. My accuracy indoors is 9' vs. 15' for my SGS2. I haven't compared it to another One X so can't comment on whether they all behave the same way.
You might want to run GPS Tracker on both your One X and GN to see how differently they perform. Also keep in mind that the way GPS works in flight mode (no aGPS support) is very different than when it's using Wi-Fi or a wireless signal. The former is the best way to test the GPS chips function. To really test the GPS chip put the phone in flight mode and then restart it. It'll be much slower to lock (they all are) and the results you'll be seeing are the GPS chip working on its own.
I've had this phone for years and always thought it performed strangely with GPS tracks, etc.
Now I'm finally realizing that the inaccuracy of my EXIF GPS tags is not some inherent flaw of the EXIF format, or of the camera app, or of the software displaying the geolocation, but just a flaw in the phone itself. In my part of the world, the GPS EXIF tags are limited to 0.0002777 degrees resolution, which is a grid with over 100 ft between points.