Related
I am going to buy i780 but i don't know how GPS is working...
How much time is needed to find satellites without A-GPS function (without connecting to internet), and is it ever losing satellites during navigation ????
I am asking this because I had SonyEricsson W760 and GPS on it was a **** , he needed half an hour to find satellites (one or two) without A-GPS , and an about 2 minutes with A-GPS and he lost satellites every 200 meters. that is my bad experience with GPS on cheaper phone. for an example my friend has a HTC TOUCH PRO and GPS on it is working so good, phone is finding satellites in 5 seconds without A-GPS and never lost them
somebody ????
mods can you delete topic
thanks
just past by on this thread
is this question already answered?
GPS works well. with a cold start i780 finds satellites in about 1-2 minutes tops, with a warm start it only takes 5-10 seconds. Signal strength is about 1-2 bars indoors (out of 5), and 3-4 bars outdoors.
Took a 300 mile each way car trip over the last 2 days. I had my Captivate and 4 year old Tom Tom XLS with 9 month old update. We didnt need the Tom Tom until about 10 miles from our destination. Turned it on at the same time as opening Navigation on the Captivate. It took around 5 minutes for them to get a satellite lock. The interesting thing was they locked at EXACTLY the same time.
Now, the Tom Tom (TT) usually locks in 30 seconds or less if I turn it on near home. If I'm over say 100 miles from home it takes several minutes to lock on. I had heard this is due to the TT looking for the same satellites or number of satellites as when it was last locked on.
So that said, when we were leaving, I turned on the TT and Captivate and did the same thing. TT locked in about 30 seconds, Captivate in about 5 minutes. When we were 100 miles from home I turned off the TT and Captivate. Turned on again at home and they both took exactly the same time to lock on again - about 5 minutes.
I noticed a similar lag with my Tilt 1 if I didnt download the quicksat updates. If they were installed, the thing locked on very quick.
So could the Captivate have no historical data of the last lock and thus is always trying to track and locate satellites that are not visible, gives up then locks onto new ones?
Am I smoking something?
With everyone complaining about the gps, I have had absolutely no trouble with it. Being very inaccurate with the famous blue circle around it is only when it does not have a CLEAR view of the sky. I bought a holder that sticks on the windshield and it locks on in about 2-4 minutes, and it deadly accurate from there. I have the cheap tom tom and the captivate is just as accurate as the TT. Actually locks on faster than my TT if Im moving. I've tested it a lot to see if I can have trouble, but unless I block its view.... I have 100% reliable operation out if it.
klloyd said:
With everyone complaining about the gps, I have had absolutely no trouble with it. Being very inaccurate with the famous blue circle around it is only when it does not have a CLEAR view of the sky. I bought a holder that sticks on the windshield and it locks on in about 2-4 minutes, and it deadly accurate from there. I have the cheap tom tom and the captivate is just as accurate as the TT. Actually locks on faster than my TT if Im moving. I've tested it a lot to see if I can have trouble, but unless I block its view.... I have 100% reliable operation out if it.
Click to expand...
Click to collapse
2-4 minutes sucks bad for locking and needing a 100% clear view of the sky is also bogus. What happens if you don't live in the flat rectangle known as Kansas? The GPS on these flat out sucks. I have a 10+ year old "cobra" handheld GPS that locks faster and holds lock / is more accurate.
I live in that flat rectangle, and it still would get lost.
OP
I think you are on the right track. In addition to othe issues with the gps, such as incorrectly intrpreting the time zone and having GMT 5 hours off, regardless what other people say, it seems to be starting in"cold" mode always, whic means it needs to download all the positional data first, determine the satellites positions and the attempt to get a fix. This takes about 5 min in any gps, simply because the transmission rate of the gps satellites is very low.
Your tomtom attempts to take a shortcut assuming it's not too far from where it was turned off last time. If true, it can get a fix in 20 secs or less, if false, it would take 5 min.
Sent from my SGH-T959 using XDA App
Mine always locks in within 20 seconds, whether I am moving on stationary, hot start or cold start. I've even tried turning it on 100s of miles from my usual location and still locks and holds while driving to 32ft accuracy. I am already on my second captivate, the first one liked to turn off randomly. The first one didn't have a gps problem either.
I did do the supl.google fix to both though. They were slow with factory settings.
Under LbsTestMode do you have it set to HotStart and MS Based?
Sent from my SAMSUNG-SGH-I897 using XDA App
jmgelba said:
Took a 300 mile each way car trip over the last 2 days. I had my Captivate and 4 year old Tom Tom XLS with 9 month old update. We didnt need the Tom Tom until about 10 miles from our destination. Turned it on at the same time as opening Navigation on the Captivate. It took around 5 minutes for them to get a satellite lock. The interesting thing was they locked at EXACTLY the same time.
Click to expand...
Click to collapse
I did notice the same thing when I was on a trip in Wyoming two weeks ago. I hadn't turned on either GPS (in this case the car one was a Garmin) and when I did both locked at the exact same time (probably after about 3-4 minutes after turning them on). It was quite surprising because I thought the Garmin would go much faster than my Captivate, but this was not the case.
I was extremely lost last night in the city with buildings all over on a cloudy night. Gps found me and directed me in about 1 min coming from a car garage .
I've noticed it locks faster if you back out of Google maps while its finding your location and go back in. It seems to get a lock quicker. Same goes for navigation, I enter a destination and hit navigate, if it don't find a lock within say 10 seconds like it usually does for me ill hit back once and then navigate again. Then it usually finds a lock fast almost instantly ..
I do get the blue circle while navigating sometimes , but it moves along perfectly . Ill even just use google maps without the navigation and watch myself move on the map nicely...
I usually get from 4 to 7 satellites out of 12 or so.
Works for me, if it can be better cool, but its done me well so far can't complain too much.
I tried using it last night. Not sure how many satellites it locked on to, but it did give me the accurate to 5 meters message in Maps.
That said, it was ever so slightly off (probably 6 or 7 meters instead of 5) and my compass is blown. Even after calibrating it, its still a few degrees off (15 - 20 maybe?).
So half of the time when i use my gps, it will lock me with towers and be up to like 1600 meters or something. and one time i let it sit for 10 minutes and it got no closer. If i toggle the gps on and off once or twice though it will work usually (and it works fast when it does). also one time i just restarted the phone too.
anyone else see issues like this?
My GPS issue is that even though it locks on within 7 seconds when I run Cardio Trainer it always shows me at least 1.5 to 2 tenths of a mile farther than I have gone. I have checked the distance with my Vibrant and also with my Nexus One and they both show the same distances. For whatever reason the MT4G seems to add on distance not traveled.
mine doesn't like to lock on, but before I goto nav I just go load GPS status and reload the aGPS info every so often and keeps it honest
This phone definitely has gps that is inferior to one in G2 or even G1. However, my gps has no problem locking on and holding on to my exact location. Every now and then it losses orientation and spins the map around but that only lasts a sec or two and only happens when its cloudy or in downtown. Get your phone replaced I would say.
Sent from MT4G.
As I'm waiting for my Nexus 5 I'm interested on GPS performance of this new phone. Anyone can take a screenshot showing GPS signal and how much does it take to lock in?
GPS Test on Play Store
Anyone?
No one? I'm guessing it uses, glonass gps.
Sent from my SPH-D710 using XDA Premium 4 mobile app
Mine took 10 seconds to get a lock on (19 in view, 11 in use) after clearing aGPS history in the app. This was done indoors about 5m from a window.
Hardly scientific, but hope this helps!
Sent from my Nexus 5 using xda app-developers app
Is anyone experiencing long delays (2+ minutes) while waiting to get a lock (subsequent locks are faster)? And once a lock is achieved, the accuracy is about 30 meters? Lock should only take a couple seconds, accuracy should be 10-20 meters, right?
GLONASS
Does Nexus 5 has GLONASS sensor?
Aerowinder said:
Is anyone experiencing long delays (2+ minutes) while waiting to get a lock (subsequent locks are faster)? And once a lock is achieved, the accuracy is about 30 meters? Lock should only take a couple seconds, accuracy should be 10-20 meters, right?
Click to expand...
Click to collapse
no problem here.
indoor lock (near a window) takes less than 30 second, 23 sats in view, 14 locked, 5-10 meters precision.
Aerowinder said:
Is anyone experiencing long delays (2+ minutes) while waiting to get a lock (subsequent locks are faster)? And once a lock is achieved, the accuracy is about 30 meters? Lock should only take a couple seconds, accuracy should be 10-20 meters, right?
Click to expand...
Click to collapse
I get long delays, and sometimes it doesn't lock at all.
Same here. Very long lock delays every time.
Sent from my Nexus 5 using XDA Premium 4 mobile app
Same Problem here.. Sometimes it only locks to five and the accuracy is bad.. Notably while playing ingress today
i went out running with mine last night, the gps was terrible, had it on high accuracy as well, nowhere near as good as the N4 or S3
I find it locks on very quickly. Fat far quicker than my old galaxy nexus
Sent from my Nexus 5 using Tapatalk
What is the difference?
So some of us are getting poor GPS on the N5 and others are getting great response as you would hope.
What is the difference? I got mine early out of Hong Kong and I am getting the slow variable quality lock.
In case it is relevant my build no is KRT16M, Baseband vers os M8974A-1.0.25.0.17 and Kernal vers is 3.4.0-g9eb14ba.
Happy to provide anything else if relevant.
Of course it might be something mis configured at my end, but there seems to be a group with poor experience.
Not as fast or stable as my Samsung s4
Very fast. About 10 secs or less.
Sent from my Nexus 5 using xda app-developers app
I noticed that mine is very slow indoors, but works faster outdoors. It still take a few seconds to lock.
I was driving in Salem, MA last night and constantly losing GPS signal. It was a clear night, and I'm not aware of anything that should have interrupted signal. I was streaming some music and connected to my car's head unit via bluetooth, neither of which should have affected it.
I used it the other day to find a hobby shop. It connected in about 10 seconds, I only had to go about 3 miles but it was perfect.
As long as I'm not hiding it under my desk of electronics, it gets a lock indoors in about 3 seconds, and resolves all the way down to about 10 feet of accuracy in less than 10 seconds. I haven't had it lose GPS once since I've gotten it on Tuesday, and I've used it every single day several times.
Vincent Law said:
As long as I'm not hiding it under my desk of electronics, it gets a lock indoors in about 3 seconds, and resolves all the way down to about 10 feet of accuracy in less than 10 seconds. I haven't had it lose GPS once since I've gotten it on Tuesday, and I've used it every single day several times.
Click to expand...
Click to collapse
Good to know I rely on gps n wifi tether on att ... cant wait for ups to deliver it already
Nexus is unlocked and rooted. I get slow or poor locks with GPS status. Does this happen to anyone else?
I've only had the phone for a day, so I can't say that it was working well before or not.
I just opened Maps to test...I'm on a moving train and it locked on to me in about 7 seconds
Sent from my Nexus 5 using xda app-developers app
Compared to my Samsung S4, N5 gps lock is not as fast or strong in hardware only mode. It's workable but nothing remarkable.
My first lock (cold fix) took 23 seconds, Hot fixes are between 2 and 5 seconds. About 24 satellites in view, locks on to 11-13. I've done these "tests" at a window not outside... I can't say I'm not happy with it
update- I was able to get a lock this morning and it seems to lock a little faster. I know it's common with some phones that the first lock after reboot is the longest.
I'll keep an eye on it.