Does it crash the Vibrant when using Navigation? Wondering since I haven't gone out to test it myself. Reported Accuracy is also slightly better from what I can tell, shows 7-8 meters in my house (although it's much closer/next to or directly on my house most of the time). Before it would only show 10 meters regardless.
Related
Running AOSP ish rom and applied the latest GPS fix (can't remember exactly which one).
So I have been running this rom for a long time, like since it was released. The only issue was the gps was still crappy. I did the hardware fix but that didn't help. About 2 months ago I saw a new fix which involved changing the info in the gps settings page. Anyway, gps is fast to lock (like 5 seconds) and is accurate now.
Around the same time I did the gps fix, I noticed I started having worse battery life. I hardly use my phone during the day and some days don't make a call or use gps, internet (other auto email notifications) etc but I notice my battery is down to 10-20% at the end of the day, approx 10 hours after taking it off charge. This is while at work with no wifi connected and no way the gps could get a lock.
Now if I am off, going from place to place in my car (connected to my bluetooth head unit) and when at home the phone sitting on a table, connected to wifi and with a reasonable ability to get a gps lock, my battery is still 80-90% charged at the end of the day.
What could be causing this? I have thought that when at work I have a worse signal and that the momentary loss of signal and the searching for a signal may cause this. How about the fact that it isn't connected to wifi but there are a couple available?
Thanks for any info.
Considering buying an ATRIX but I need good GPS, whats locking speed and accuracy like and is it fast even with Data connection off?
I consider it great....but I always have connection on....
Enviado desde mi MB860 usando Tapatalk
Not sure about with data off, but in regular use its great, and is one of the main reasons I switched from the iPhone. It also seems to calculate real time traffic into your ETA.
Sent from my MB860 using XDA App
keep mobile data off 85% of the time. almost never use the gps. connects within seconds indoors without downloading data. ive had a g1, droid, and acer iconia tab. this blows them away gps wise.
I was shocked at how fast it connected and started navigating. Last week I tried my g/f's inspire. Took like over 5 mins to lock. My Atrix takes seconds.
The Atrix has a fantastic gps. Even better than my son's low-end Garmin. I used it for a 600-mile trip to Spokane and it never missed a beat. I loaded my route before leaving, and it cached all the maps. Hence, it worked well even in areas without data service. I was so impressed that I bought the car dock when I arrived in Spokane just to have better access to the gps features in the car.
Best GPS on any phone. I have ever used.
mobileweasel said:
Best GPS on any phone. I have ever used.
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same here. but i used to own a galaxy s so really anything is an improvement. locking is super fast & accurate - perfect for all of those golf apps.
The Balvenie said:
same here. but i used to own a galaxy s so really anything is an improvement. locking is super fast & accurate - perfect for all of those golf apps.
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Rofl seriously my captivate gps would have me driving a mile away through houses, driving in one direction while pointing in another direction, and tell me I was accurate to 30m all at the same time. Atrix gps is awesome.
Sent from my MB860 using Tapatalk
Agreed, i'm very happy with the gps. It didnt occur to me to test without data before but i just tried it.
I went into airplane mode, went into Gps Test app and turned gps on. It immediately located the first satellite and others, and ~6-7 seconds later it had full lock. This is from my 3rd floor office of a 4 floor building.
Sent from my MB860 using XDA Premium App
GPS is awesome on these phones. I don't know about with the data off though, you have to get maps from somewhere. With Google maps, you can set it to cache your route and that helps if you're in poor service areas. I use mine almost everyday, and all day long, it never misses a step.
I came from the Captivate and I can tell you it's excellent. I get an approximate location within 2-3 seconds, and an accurate location within about 7-8 seconds. And by accurate within 5 feet or about 1.5M. I was surprised how fast and accurate the GPS was on my phone. This was while indoors, I'm sure if you went outside you could lock on a few seconds faster.
I think you have your answer OP.
Keep in mind Google Maps will use the cell towers to get location. Google will even work if you disable the GSP. I use Navigon. I like having the maps on my phone just in case. I also use BackCountry Navigator. Both these programs will only use the GPS. The Atrix GPS is great. I has always lock in 10 12 seconds or less. If you use GPS Status to download the A-GPS XTRA Data, it will lock in 1 to 3 seconds. The Atrix GPS seems to be very accurate also.
I found it to be awesome on froyo and real iffy on gingerbread.
I work in an office which is a level below ground in central Sydney so most of my work day I am out of reception.
Now I do venture into reception areas so every now and then so don't want to turn aeroplane mode on and off all the time.... So please don't suggest this.
With my previous phone (i8000) I didn't have such a drain on battery when out of reception all day from what I remember. I used to get really long standby times but I didn't use the screen anywhere near as much.
Now I know the phone will use more power in low reception areas because it needs to turn the sensitivity up to get clear signal. But the i9100 seems to drain much more than all my other phones I have used.
I am on stock I3 firmware with CT Root kernel. I have a high level of 44% Cell Standby with only being on for 6 hours (and out of reception for 3 of them) even though I have used the screen for 1 hour and that only shows 37% of usage. I don't remember it being this bad on H3 but to be honest I didn't really check for comparison of usage.
Is this normal? My old O2 phone on win mo used to go into a state of sleep for searching for reception when at work because it used to take a few minutes sometimes, after I got into reception zone, to realise I had reception. The i9100 seems to get it straight away which makes me think is it polling all the time I am at work and draining the battery more because it tries so hard?
Hope I made this clear.
So it appears like from research this high drain is fairly common on android devices when in no reception areas. I could understand why it would happen in low reception areas where the phone uses more power to pick up a weak signal. But why would the phone continually do this in a NO recpetion area. I thought samsung would have made the phone relaise it has no reception and only try every 5 minutes or so...
I never noticed this on my i8000 or any of my win mo phones before it. I assume they realsied there was no reception and stopped polling at full strength the whole time I was at work. This would have been indicated by the slight delay of leaving my bilding before getting messages sometimes where now its instant. But without the battery usage stats I can't compare.
I have tried to find an app that automatically puts the phone into aeroplane mode when NO signal for 30 minutes or something. And keep s turning aeroplane off every 5 or 10 minutes or so. But I have yet to find anything.
I realise there are programs that will use GPS and do it automatically but this is not ideal. I only want it to happen when I have no reception.
Any ideas of ways to fix this without me manually putting my phone into aeroplane mode when I'm in my office and remembering to take it back out when I know I should have reception? I don't want to use location based because this doesn't work when I go up one level.
Just bumping my ancient thread.
After an app that will recognised NO reception for long periods and automatically put flights mode on. Then turn flight mode off briefly every 5 minutes or so to check if reception is back.
In my office I have no reception but if I go up two levels I do. So time based automation does not suit nor does location based unless it knows what level I am on.
See above for the long story
Sent from my GT-I9100 using XDA App
I don't use GPS but with all the talk going on about GPS I thought I would try that GPS test program on my Transformer Prime. Is the attached picture a good response? I'm not sure what SNR means but it appears to have picked up quite a few sats.
For a Prime its pretty good as many people including myself get nothing.
SNR means signal to noise ratio. Which is an indicator for signal quality. In comparison to other devices the SNR is not so good.
texstar said:
I don't use GPS but with all the talk going on about GPS I thought I would try that GPS test program on my Transformer Prime. Is the attached picture a good response? I'm not sure what SNR means but it appears to have picked up quite a few sats.
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That's average, mine is also like this, but it won't ever locate you any closer than that and if you move you lose signal.
Compared to my Galaxy Note...
I got zero's across the board on my prime...for sh*ts and giggles, I decided to compare to my galaxy note.
Note with GPS only accuracy down to about 225-250 feet, SNR on 12-14 satellites ranged from 18-27 or so...
When I add sensors to the mix, accuracy goes to 45 feet... (about same SNR)...
All and all I am continually amazed at the galaxy note... (gps on prime is nice to have for me... my car has nav and clearly the galaxy can do it!)
It seems for a "premium" tablet, they'd have put forth premium components and subsystems like GPS...
on the plus(and unrelated) my wifi has been solid...which is key for me...
Interpreting YOUR numbers
Here is what your pic is telling you:
GPS Status: Green - You have a lock...Your "location (car)" will track you as you move.
Yellow - GPS is active, but you do not have GPS lock and is still searching for satellites
Red - GPS is inactive
Accuracy - 36 ft isn't bad...GPS alone (without AGPS) is going to be about 30 ft. AGPS will improve that number. I have seen numbers as low as 6-10 ft. This also depends on where the "active" sats are...If they are low (at the horizon), the accuracy won't be as good....If your sat's are at about 45 degrees in the sky will give the best reading. As the accuracy gets worse, as you're moving, the map indicator may show you traveling in a median, field, thru houses, etc - so although it shows you, your actual location is off.
Chart - Satellites with SNR below 20 most likely will not lock. Depending on the system (I don't know this one well enough yet) it takes 3-4 above 20 to get a lock (some systems require 5-6 sats)....When most numbers are in the very low 20's, although you have lock....you probably will lose lock at times during your trip....how long is loses lock will vary and depends on when it can pick up some higher numbers...Sometimes, it's only seconds, sometimes it's minutes...when it happens, you won't be tracked. The numbers at the very bottom are the satellite numbers....There are about 32-36 active satellites floating around in space...being able to see 13 means you are seeing pretty much the maximum number available at your location.
Hope this helps your understanding.
Bob
To possibly improve an already decent reading, I'd try the mods found in these 2 threads:
http://forum.xda-developers.com/showthread.php?t=1520642
and
http://forum.xda-developers.com/showthread.php?t=1533776
Ok 6 days ago, I lost my phone on a night out google latitde has pinpointed 5 days ago where my last location was known and is 5 - 10 mins away from the location i went.
I have an address from google latitude, not sure how accurate this is?
i hope its accurate ill be knocking on their door for my phone back, haha
thanks
Was the GPS enabled on your phone? If so (in my experience) you should have an accuracy anywhere from 5 to 2 meters. If not then your location must be being determined by a more course method like WiFi or radio towers. If its WiFi i would guess its getting its geo-loction data from the WiFi it should be pretty accurate.