Any one tried the GPS on this tab. Take a long long time to find satellite. 10-20 minutes if not more.....
MikeViller said:
Any one tried the GPS on this tab. Take a long long time to find satellite. 10-20 minutes if not more.....
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I've only tried it once with GPS Test. It took about a minute to lock, which is longer than it takes with my Galaxy Note phone, but acceptable.
Go onto the playstore and instal pimpmyrom, they have some speed tweaks for gps, as well as some other goodies.
Related
Hey people, what is your GPS lock time with no internet connection, I mean, only the GPS?
Thanks!
It depends where I m at. Outside it only takes a few seconds, and inside I never got a signal.
Sent from my E10i using XDA App
IgorBotti said:
Hey people, what is your GPS lock time with no internet connection, I mean, only the GPS?
Thanks!
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Compared to my old HTC TouchPro I'd say about a million times faster!
Mine takes about 20 seconds - 45 second to get a lock outdoors. Inside I never get a lock. I think SkyNet doesn't see me when I'm indoors .
haha
Thanks!
Mine is taking 60seconds on a open area, is this normal?
Before the update(E10a to E10i) it was taking about 15~20 seconds. I tried to purge assistance data, but nothing changed. Its normal?
but do you use the network support? If I just use the gps it takes several minutes to get the signal...
No I just use the GPS.
I think that there is some problem, because before I got the lock within 10~15s everywhere, now it takes a minute or so.
I will use this threat to ask a question.
Does Android have something like QuickGPS on WM HTC phones?
no more answers? I've noticed that my x10 mini is very fast in viewing the satellites (3 to 7/8 in 15/20sec) but the locking time is very long...probably because I live among high buildings..but the signal is alsways very weak
I get anything between 10 secs to 30 secs to lock when outside, and 1 minute to 4 minutes when inside a building.
it takes a while sometimes to get a lock (other times very quick) but once it gets a lock, it takes a lot to get rid of it.
my question is, why can't it get a lock at say 4 sats after turning on gps ? there's enough data there, it would just be inacurate
i'd also like to know if there's a way to force a lock asap as opposed to waiting for a decent level of accuracy
lock does not happen merely because your device can "see" 4 sats. for example, while in a plane at 10k meters, i can see sometimes even 11 sats but there is no chance to get a lock. so i guess there are a lot of factors that influence getting a lock.
andrej.marinic said:
lock does not happen merely because your device can "see" 4 sats. for example, while in a plane at 10k meters, i can see sometimes even 11 sats but there is no chance to get a lock. so i guess there are a lot of factors that influence getting a lock.
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Well, attached are two screenshots made with my ex-HTC Desire I made on my flight to Hannover...
How/where can you see the number of sats your GPS has locked on? I never found the option on my phone...
yea, and my desire got a lock on flights to cuba and canada.
afaik, it should be able to get a lock based on seeing a few sats. gps is based around the time it takes for a signal from a sat to reach your phone and comparing the difference between the connection time of each sat the phone can see right?
even with 4 sats, there should be "some" data. it would be ranging to a few hundred meters but should still have something.
jerome.d said:
How/where can you see the number of sats your GPS has locked on? I never found the option on my phone...
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what app do you use? pretty much everything i've seen/used tells you.
Your question is not about SGS2 but about the GPS-system.
In order to calculate position the receiver needs certain information, and it takes some time to send out this data. The data rate from a satellite is only 50 bit/s!! (yes, I mean only fifty single bits per second...).
And when you only see 3 or 4 satellites, then it is often satellites that are visible in the same area of the sky, and that makes it difficult to calculate the position.
Here are some information how this works:
http://gpsinformation.net/main/slowlock.htm
http://gpsinformation.net/main/whynoloc.htm
http://gpsinformation.net/main/gpslock.htm
http://www.gpsinformation.org/dale/theory.htm
http://www.trimble.com/gps/index.shtml
And you have tons of more information from the main page:
http://gpsinformation.net/
thanks for the info
tommo123 said:
what app do you use? pretty much everything i've seen/used tells you.
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The only apps I use which require positionning are Google Maps, and Dolphin HS browser (some websites, such as google, give you informations adapted to your position). I did not find, in Google Maps, any info on the number of sattelites.
GPS Status from the market for satellites view .
jje
^
gps test and a ton of others too
jerome.d said:
How/where can you see the number of sats your GPS has locked on? I never found the option on my phone...
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Click to collapse
EDIT: I'm soo slow today
Look for GPS test or GPS status in market, they are both good.
tommo123 said:
it takes a while sometimes to get a lock (other times very quick) but once it gets a lock, it takes a lot to get rid of it.
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That´s the way GPS-positioning works.
Your device measures the time the signal takes from the satellite to the GPS-reciever.
The time it takes for the signal is dependent on the distance between you and the satellite.
But calculate the distance and make something useful from it the device needs some information. First it needs to know the actual GPS-time. This must be very accurate, as the signal travels with the speed of light a very small error makes a big difference. Therefore it can´t simply use the internal clock.
It also must know the exact position from the satellite, so the distance can actually be used to calculate your position.
So the satellites constantly send a signal consisting of their ID, the time the signal was sent (all GPS-satellites are synchronized) and the current position of all GPS-satellites in the air. GPS-satellites aren´t geostationary, they are constantly moving around the world. Therefore on the same position on the earth you can experience very different GPS signal-strengths and different numbers of satellites you can receive, depending how the positions of the satellites are when you are using your GPS-receiver.
But GPS is very old and the signal is very weak, the data-rate is very very low. It is so low, if you had a GPS-antenna in your body, you could nearly count the bits yourself.
So it takes a lot of time to get the whole position-data transmitted and until the necessary position-data from the satellites is not on your device it is impossibly to calculate your position.
There is no backward-channel, so you can´t tell the satellite "please send me this", you simply have to wait until the satellite sends what you need. And if the signal was interrupted for a short period you can´t tell the satellite to resend the necessary information, you have to wait for the next round.
This is also what assisted-GPS can speed up. With A-GPS the satellite-positions are sent over the data-connection to your device, so it can speed-up the lock quite a bit, because your phone can almost immediately begin to calculate the position and does not have to wait for the satellites to send their position-data.
In the end you have a system of equations with 4 variables. The variables are the 3 space-coordinates, and what many people forget in first sight, the time.
To solve a system with 4 variables you need 3 equations -> 4 satellites.
More satellites can be used to increase accuracy, but they usually won´t speed up the initial lock a lot.
After the initial lock your device can interpolate the travel of the satellites, as well as the time, so 3 satellites are enough to recalculate the current position.
This is also the reason why the initial time for the initial lock depends highly when you last used the GPS. The satellite-positions can be interpolated with reasonable accuracy for a few hours. So if you use the GPS once every hour, lock usually will be quite fast. If you didn´t use the GPS for several days, the lock will take longer.
my question is, why can't it get a lock at say 4 sats after turning on gps ? there's enough data there, it would just be inacurate
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Read above, there isn´t enough data there, as long as the device doesn´t know the position of this 4 satellites.
Also it doesn´t really matter how many satellites you have to get the lock, actually 4 strong signals would be better then 10 very weak signals.
You also shouldn´t move around until you get the lock. Getting a lock in a driving car can take a very long time. First of all, the car blocks much of the satellites signals, the windows are the only chance to get some of the signals into the car, and if you drive around you will constantly lose one satellite and get to the next one. So much of the position-data will have to be sent several times, until your device gets all the necessary information.
i'd also like to know if there's a way to force a lock asap as opposed to waiting for a decent level of accuracy
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No, not with GPS, you can use Cell-tower information, which allows positioning with very low to medium accuracy. WLANs could also be used, but aren´t always available.
thanks
so, do you think galileo will be a better alternative once finished?
more probs with this today.
stood still for about 5 mins and no lock. tried different roms, data on, no diff
gps just sucks
Get GPSTest app .. have data active (wifi works too) .. go to gps test app settings, select clear agps, then update agps .. then you should get fix in few seconds.
got em. a few of them actually. did that. doesn't work at times. it's annoying.
thankfully i don't use gps properly all that often but if i ever really needed it (for work or soemthing) i'd get something standalone. can't rely on a mobile phones gps at all
Please use the Q&A Forum for questions Thanks
Moving to Q&A
Mine take a minute or more sometimes to lock. How sad compared to my Xperia X8. Is there aany fix for this?
Original cold boot first ever fix no network and no Wifi 4 mins 8 satellites .
Since which i dont bother to measure as it starts quick enough without bothering to time its lock .
jje
Mine take 3 to 4 minutes and it depends on location.
Anyone know how to get this to work better? Anytime I'm in doors, sometimes when in a car I can't get a GPS lock.
Regards,
Mike
panamamike said:
Anyone know how to get this to work better? Anytime I'm in doors, sometimes when in a car I can't get a GPS lock.
Regards,
Mike
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You need open sky to receive the GPS transmission through your A-GPS, correct me if I am wrong.
So it is not possible to get the GPS lock when you are completely indoor or sometime in car.
rajdeepce said:
You need open sky to receive the GPS transmission through your A-GPS, correct me if I am wrong.
So it is not possible to get the GPS lock when you are completely indoor or sometime in car.
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It is possible on my Live with Walkman to get GPS lock while indoor(+ 2 floors above).
Usually GPS can take about 5-10 minutes to get a lock, how long did you wait?
Have you done any modifications to your phone?
Someguyfromhell said:
It is possible on my Live with Walkman to get GPS lock while indoor(+ 2 floors above).
Usually GPS can take about 5-10 minutes to get a lock, how long did you wait?
Have you done any modifications to your phone?
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I tried for about a minute. However, a friend with a razor was able to get a lock in a few seconds.
Regards,
Mike
A minute is not enough, especially for the first GPS fix. You can use aGPS to speed up the GPS fix, using your internet connection (WiFi or 3G) to help your phone find the satellites.
I have to agree with the OP. GPS on my mini pro is terrible. My old LG Optimus (the very first one) could get a precise location in seconds, but my mini pro sometimes takes 5-10 minutes, and has trouble keeping up with all the turns. Most of the time it only tells me to make a turn after I've already made it. Moving it up the dashboard (so it's clear of the car roof) helps but it's not very practical.
It's a shame because I love everything else about the phone :-(
I'm having difficulties believing you can get a real gps lock indoors.
The chipsets at the moment are just not made for that?
As mentioned in a previous post, you need a clear view of the sky, or at least be close to a window.
However, via a-gps you can have quit an accurate lock if it gets its location based on wifi. Based on cell signal, it's not as accurate.
My mini pro has an almost immediate lock outside, and sufficiently accurate one inside when I'm at home. But in the 2nd case it's not a lock via gps satellites
My 2 cents...
jvdv360 said:
I'm having difficulties believing you can get a real gps lock indoors.
The chipsets at the moment are just not made for that?
As mentioned in a previous post, you need a clear view of the sky, or at least be close to a window.
However, via a-gps you can have quit an accurate lock if it gets its location based on wifi. Based on cell signal, it's not as accurate.
My mini pro has an almost immediate lock outside, and sufficiently accurate one inside when I'm at home. But in the 2nd case it's not a lock via gps satellites
My 2 cents...
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First time and when using GPS after long time can take some minutes to get a lock. However, if you use A-GPS, you can get faster.
I use GPS Test Plus app to clear and update A-GPS by hand to get faster lock. Without it, I usually get lock in about 5 minutes, with it in a minute.
As mentioned, using Live with Walkman.
My G3 is 3 weeks old and the GPS is not working anymore. All i did is turn it off once and now it is finding satellites, like 20 of then but does not lock..and even when it does lock it just give up in like 3 minutes tops
Any advice?
rasarima said:
My G3 is 3 weeks old and the GPS is not working anymore. All i did is turn it off once and now it is finding satellites, like 20 of then but does not lock..and even when it does lock it just give up in like 3 minutes tops
Any advice?
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Have you tried Setting> Locaton and select "High accuracy"?