yashsingh1/xdaforums huggingface dataset:
[Galaxy S I9000 General] Bynar010:
And you consider that a good track! Have you even looked at it properly!! I like the bit where you run through someones house. You only take one sodding corner as well, and even thats not looking so cocky.

My god, straight, turn, straight and even thats crap. Try driving round by me, bends, corners, roundabouts, the things laughable at times. Not to mention it lags behind where I am between 5 and 20 seconds.
[Galaxy S I9000 General] foxbat121:
I may disagree with DamianGto many times, this thread is for different purposes. I've posted in another thread that the signal strength maybe related to whether or not your GPS works.

If you have 3 or 4 satellites with SnR close to 40 (or over 40 like DamianGto posted above), your GPS will work fine.

So, please post yours and stop spamming this thread with useless comments.

I don't know how to take screen cap. But my SGS GPS is just as crap as a lot others who complained. I have at most one satellite with SnR close to 40 or above. 2 or 3 are around or below 35. Most others are around or below 30.
[Galaxy S I9000 General] zorxd:
Unless you ask people to post the serial number and/or manufacturing date of their phone then what pattern to you expect to see?

The only thing you will be able to say is that X people have been able to get a working GPS at least once. So what?

How do you know? Nobody posted SNR in function of time next to error distance in function of time and I bet no one will on this thread as there are no common tools for that.
[Galaxy S I9000 General] Bynar010:
There you go, I think thats a pretty good signal strength in anyones book, more than enough to lock and track me....and yet it does it so poorly, in fact it drops and relocks satellites every few seconds.

Correlation between signal strength and good gps = total fail
[Galaxy S I9000 General] DamianGto:
I already seen a pattern, but i want to confirm that's right.

I also want to know the reson behind it. Then maby we can find a cure. But if people don't respect the purpose of this tread and continue to post nonsense i just stop working on it. So its up to ALL of you.

Sent from GT-I9000 jpo. My own kernel for z4mod and with 342MB Ram
[Galaxy S I9000 General] Bynar010:
Not even you have posted a working track, and the one "working" track I've seen posted so far is laughably bad. Please can YOU post a working track so we can see how good the GPS can be, as your phone is clearly uber awesome.
[Galaxy S I9000 General] DamianGto:
The pictures you did post i don't considere to be a good one.

Signal strength is important and im more interesting in that. If you can post raw data( position and signal strength) on every point on a track it would be usefull.

I do working on this issue.

But i do it for others. Remember i do have a working gps so i don't have to do this. And if people continue to post junk in this tread i stop.

Sent from GT-I9000 jpo. My own kernel for z4mod and with 342MB Ram
[Galaxy S I9000 General] Bynar010:
Thats me done, until you post a working track. Or is it that you can't and just love to stare at the long bars in GPS test and drool over them?
[Galaxy S I9000 General] evil-doer:
another ridiculous thread.

lock time and signal strength and number of satellites seen mean ABSOLUTELY NOTHING when it cant track you accurately.

my 3 year old nokia 95, while it did take a while to lock on, once it did (and i think it can only see 5 satellites at a time..) it not only tracked completely on the road the entire path, you could clearly see which side of the road you were on as well. every little detail. it was like 1-3 meter accuracy 100% of the time along a whole track.

ive seen nothing but garbage tracks from every single person posting them. i have a feeling that every single person who claims their galaxy s has a perfectly working gps just plain does not know what a working gps looks like.
[Galaxy S I9000 General] DamianGto:
This is the FINAL warning.

If people don't stop posting nonsense that i don't want I WILL NOT post any of my findings and i will NEVER help people with the gps problem.

Now it's up to YOU. You all have been warned.

Sent from GT-I9000 jpo. My own kernel for z4mod and with 342MB Ram
[Galaxy S I9000 General] dnsp:
JPO firmware flashed with odin then OCLF

Location - Madeira Island, rainy day

Date of production: 2010-05-31

edited just to say that my GPS has been working flawlessly since the beginning no matter which firmware.
[Galaxy S I9000 General] DamianGto:
Thanks.

Can you make one or more when you are moving to?

Sent from GT-I9000 jpo. My own kernel for z4mod and with 342MB Ram
[Galaxy S I9000 General] dnsp:
Ok, tomorrow when going to work. Wishing for a sun shining day..
[Galaxy S I9000 General] madmackem:
So where is your track? I get decent signal on gpstest but it cant take me 2 mile without losing lock every few seconds, putting me 3 streets away in York telling me to turn where theres no turns etc. Go for a drive and post your track.
[Galaxy S I9000 General] t1mman:
Actually, it doesn't take a lot of jugement to see that the road in the map and in the satelite image are crooked...

If you disable the satelite you'll get the result exact. It shows where I run, when I run ON the street and when I run on the bike trac (by the tack) and where it crosses the track.

Furthermore, this track was taken with an HTC Vogue

http://sportypal.com/Workouts/Embed/654588?key=f20c97df62d9b8eb5766647134ccb0e777f260ca&ms=0

and it is LESS precise than the one taken with SGS / trackerbooster

So, I don't know how many phone you had with GPS, but if this is your first one and you think that it should work like a military grade GPS, well, think again!
[Galaxy S I9000 General] dnsp:
Yep, there is even a big difference sometimes between Google Maps own layers i.e. road and satellite view.
[Galaxy S I9000 General] t1mman:
You can also see in this post

http://xdaforums.com/showpost.php?p=9129608&postcount=33

Taken with the desire HD, it gives you result worst than what I get from SGS + TrackerBooster

I also had to correct many points when I run on events (where there's more people with more GPS and device and what not) using the HTC Vogue. Probably as anyone running anything considering the density of signals/peoples in the event.

So, I'm begenning to wounder if part of the problem is not the users thinking they'd get military grade GPS on a SmartPhone, and they would be deceived of any result with any devices!
[Galaxy S I9000 General] evil-doer:
its the same thing over and over again on this subject. people who say their gps works perfectly either refuse to post a raw track or when they do we see they are crap.
[Galaxy S I9000 General] t1mman:
Can't you read?
[Galaxy S I9000 General] dnsp:
This is a very interesting and pedagogic read:

http://www.pocketgpsworld.com/howgpsworks.php
[Galaxy S I9000 General] milsjg:
Well here are three tracks that is good

Well Bynar010 here are some good tracks. I understand that you and several others may not considering these tracks as good because they, deviate several (normally 2 - 4) meters. However the GPS that you and others are striving for is a DGPS that costs several 1000 dollars. If you do not get these sort of tracks well I am sorry. You should by a dedicated GPS and stop trying to fix your SGS.

The errors in the first two are due to road construction not visible on Google map. My tracks tend to be a bit slow, so sometimes when i turn it seems that it get a little bit wider then in reality. The last track is with Cardiotrainar on a golf coarse. It tracked me really good with all tee and green visited tracked. I had to transfer them to Google maps with KML but Google insisted to split them in several parts.

http://maps.google.se/maps/ms?ie=UT...2742,20.376892&spn=0.443356,0.889893&t=h&z=10

http://maps.google.se/maps/ms?ie=UT...09137413725907.00048f22f3b880970aec7&t=h&z=11

http://maps.google.se/maps/ms?ie=UT...8968,20.404079&spn=0.006936,0.013905&t=h&z=16
[Galaxy S I9000 General] dnsp:
This is from August when I was in holidays in Porto Santo, (a smaller Island near Madeira)

See for yourself

Yes, it was my Samsung i9000 Galaxy S

Amazing, uh?
[Galaxy S I9000 General] maesebit:
Well.

I have something to say about all this

, so, if fanboys, haters, naysayers, and common people could stop arguing nosenses and was so kind of paying me some attention, I'll give my 2 cents, which I think could explain some things.

Well, there's my track here:

http://maps.google.com/maps/ms?msa=0&msid=210524848440552153750.000494b780ec4fa7b205f

As you see, it's half into the city, and half through open spaces with no buildings around.

If you look closely at it, the GPS works

FLAWLESSLY

when I'm in open spaces. It keeps track on me all the time with error below a couple of meters. Well. Now go and look at the part that is into the city sorrounded by buildings. As you see, in this scenario the GPS goes totally bananas and it becomes almost useless.

Maybe I'm wrong, maybe not. But could be plausible that some of the people reporting the GPS as rubbish is testing it into the city. And some of the people reporting it as excellent maybe is using it in open wide spaces with no tall structures or anything else impeding the GPS signal.

Now, if some was so kind of proving me wrong, and could share with us an accurate track into the city going around narrow streets sorrounded by buldings, I'd simply love it, since that'd mean that the Galaxy S isn't all in all non capable under some circunstancies.

Thank you for your attention if you have read till here. And let's see if we can work something productive out of all this, instead of just arguing like ridiculous children.

PS: My GPS always behaves like this.

I use stock FROYO with Trackbooster. And my phone shows 21/9/2010 on hte battery.

PSS:

By the way, I forgot saying that in car navigation using Sygic is overall good when I'm out of the city and in wide avenues, and it's ok when I drive into it, but sometimes has some trouble like loosing lock or missing the turn.
[Galaxy S I9000 General] foxbat121:
Bad tracks in city buildings are common. Even dedicated GPS units will have issues dues the restricted sky view and signal reflections.

I personally almost never drive into a city. Most of my commute is open highways. Yet, the GPS still does a very poor job.

Today, I bought myself a Bluetooth GPS receiver ($40), installed 'BlueTooth GPS Provider' app and did a test drive for about one hour on the same route I commute every day. The Google Nav has been 100% perfect. On top of that the accuracy is < 1 meter (not sure how is that even possible). It is 1000 times better than my built-in GPS in the SGS.
[Galaxy S I9000 General] maesebit:
Common? You gotta be kidding me. I never, ever saw a GPS performing so aberrantly into the city.
[Galaxy S I9000 General] Bynar010:
I don't know why I'm bothering biting to all these trolls on here, if you can't accept my GPS doesn't work properly then thats your problem. I'm more than happy to accept yours does work, although some section of your tracks are not good at all, but mostly OK. I've had a Touch HD and a Tyntn II both with built in GPS thats worked perfectly, not lagging behind me, not jumping off the road like this thing does. I am at a total loss why people like you are so bothered in proving that it does work, why can't you accept that for some people it just doesn't.
[Galaxy S I9000 General] Bynar010:
Totally. My touch HD got me round London so many times, this thing wouldn't even put me in the right spot when stationary until I was in the middle of a park.
[Galaxy S I9000 General] Oletros:
I have the same locking speed and accuracy in the city and on wide spaces, rubbish.
[Galaxy S I9000 General] t1mman:
Actually, YOU are trolling on a post to see GOOD TRACKS, not the other way around!

Now do yourself a favor, stop trolling around just for attention or what-not...
[Galaxy S I9000 General] maesebit:
Try erasing the GPS data from LBS test mode, and make sure you enable using networks and sensors to aid GPS, also, having data conexion will also help to speed things up.

Anyways, I'm not talking about locking speed, signal strength, nor theorical accuracy.

I'm talking about real GPS behaviour. Sometimes, while into the city, I have 8 sats locked with good signal, 5 meter error, and the damn thing is pointing my like 100 meters away at the top of some building.

Also, some phones probably perform better than others, but testing is the only way of finding out to what extent the GPS is weak..
[Galaxy S I9000 General] Oletros:
I'm talking about real behaviour.
[Galaxy S I9000 General] Oletros:
Attention seeker like the which has created the thread and that hasn't provided any track despite all the times we have asked for it?
[Galaxy S I9000 General] t1mman:
How ironic, exactly what is expected from a trolling whinning no good cry-baby...

Have a nice day sir! And you can sell your SGS on eBay and get yourself an iPhone!
[Galaxy S I9000 General] foxbat121:
Google "Urban Canyon". What I described is the sympton when you drive through narrow streets between skyscrapers, not 3-story town houses.

I didn't say that GPS on the SGS is good. But simply reply to that poster about the issue driving inside city. I don't know how many skyscrapers London has. So I can't comment on that.
[Galaxy S I9000 General] DamianGto:
Well you people just don't get it!!

You have just ruin a chance to get a better gps in the sgs.

Im done.....

Sent from GT-I9000 jpo. My own kernel for z4mod and with 342MB Ram
[Galaxy S I9000 General] dnsp:
Here it is one screenshot while driving. It's not easy at all to drive and take screenshots at the same time :eek:

And here another track taken half an hour ago. You have to see it in satellite mode because the map roads are way outdated.

Mind you that it's raining outside.

My opinion is that some units are flawless like mine and some are somehow "crippled". Different batch, antenna, chipset, production line, factory? :confused:
[Galaxy S I9000 General] DamianGto:
I did say i don't have that problem, but i know some has it.

And yes i do have found something strange that i try to sort out.

But i will do that on my own now.

And when i do release the fix it gonna cost money now. I wanted to give it away free, but you and other just don't deserving it.

Sent from GT-I9000 jpo. My own kernel for z4mod and with 342MB Ram
[Galaxy S I9000 General] egzthunder1:
Thread cleaned up from the last two posts.
[Galaxy S I9000 General] milsjg:
Which section???? You really do not no anything about GPS and how they work. This is with My Tracks so every position should count. If this is not acceptable you are not going to find a phone that fulfills your need.
[Galaxy S I9000 General] milsjg:
Dedicated GPS receivers do not have the problem of saving so much energy as a phone GPS. It also do not have wireless and 3g. Every single component aboard is dedicated to the GPS and its performance.

You can get down to a real error of 1 meter quite often because it is a statistical error of 5-10 meters not the true error.
[Galaxy S I9000 General] andrewluecke:
Dedicated GPS receivers have batteries which last 15 hours so so still (and these are ones with bluetooth). The forerunner 410's have 8hours in training mode, and they are tiny
[Galaxy S I9000 General] milsjg:
Dedicated GPS have also trouble getting fixes in urban Canyons, so the problem is common and not just a SGS problem. Read the following reviews on dedicated GPS specially the performance bit. Even these top GPS can not get a fix so why should SGS beat them it is only a phone with a GPS option.

http://reviews.cnet.com/gps/magellan-explorist-gc/4505-3490_7-34064119-2.html?tag=rvwBody

http://www.brighthub.com/electronics/gps/reviews/72567.aspx
[Galaxy S I9000 General] Oletros:
But SGS has problems not only on urban canyons.
[Galaxy S I9000 General] dnsp:
But some SGS have problems not only on urban canyons.

Corrected that for you.
[Galaxy S I9000 General] Oletros:
Obrigado :rolleyes:
[Galaxy S I9000 General] maesebit:
Nobody is talking about extreme tests putting the GPS by huge skycrappers. Normal town streets with 3, 4, 5 floor buildings around is enough to make the Galaxy's GPS go mad and point you out 100 meters away.

At least mine, only works ok when it's in open spaces. Like roads, highways, countryside, residential areas whit wide streets and 1 or 2 floor houses, etc.

So, I don't have any sort of trouble getting lock with more than 6 sats. My signal strength seems good, but my GPS performs really bad into common urban areas where its performance should be excellent.

My opinion. If this hasn't been addressed yet is because it's a hardware issue, probably a bad design. This can't be solve without a massive investment by Samsung, hence it WON'T be solved. Samsung will just pretend nothing happens for a few months untill they have sold all those Galaxy S they had to sell in the Christmas season, and next year the buzz will be around the new devices. Then nobody will care about Galaxy S and it's problems anymore.

JUST MARK MY WORDS. And I just hope you can prove me wrong soon.
[Galaxy S I9000 General] lasitha85:
Yup.. i completely agree with you...
[Galaxy S I9000 General] neil85ae86:
I've been taking tracks all week in order to get ammo for returning my phone or sending it in for a fix. Oddly enough I've been able to get a lock all week, even in my house, I hadn't been able to get a lock for a good 3 weeks prior (although accuracy is another thing). When I'm in the city half the time I have no issues seems accurate too, even in a parkade, the other half the time thats another story, 50 miles out of the city in the small city I live in it goes haywire, my tracks are all over the place, not even remotely useable. Turns out this seems to be somewhat time based, if it get's a lock at the start, it runs ok for the first 45-50 minutes then goes haywire.

so inconsistent......
[Galaxy S I9000 General] zorxd:
Exactly. I never went to an urban canyon with my galaxy S and yet it often fails miserably.
[Galaxy S I9000 General] milsjg:
So why not my SGS?
[Galaxy S I9000 General] Oletros:
Because your SGS was cleaned with unicorn tears :rolleyes:
[Galaxy S I9000 General] andrewluecke:
Have you got any tracks which show your GPS isn't dodgy?

In my experience, almost every person saying their GPS is great, are using it for car navigation, and are simply looking at GPS status. We've been down this argument many times in the past that the claimed accuracy is inaccurate, and GPS status can be too. GPS status will only tell you what the GPS thinks is going on, not where the GPS thinks it is (it could say 5m accuracy and place you in mexico, and you'll never know). The poster of this thread (Damian) NEVER has posted actual tracks, and even admitted once his tracks were bad. However, he still insists his GPS is awesome.

Test with tracks, NOT GPS status!
[Galaxy S I9000 General] DamianGto:
Well Andrew. Stop lying. You don't prove much and you are trolling everywhere there is a GPS question.

You only se what you want and ignores everything else.

i did say mytrack is flaw and you can never get a 100% track on Google with it. Its not only me that has this problem. Many sgs has it and all other phones to.

You also don't know much about car navigation system. You say they fixing all errors so you think the gps do work. Stop lying and start listen to people that knows better then you. But i guess you still think a picture that you did write on is real fact.

Im home after a trip on 680 km.

Well most part i did use the gps.

I did never drive any wrong and i got to my goal without any problem and i also did come home without any problem.

It very weird when you keep telling that the gps don't work for me.

Sent from GT-I9000 jpo. My own kernel for z4mod and with 342MB Ram
[Galaxy S I9000 General] andrewluecke:
*Facepalm*. It's like trying to teach a puppy to juggle.. But harder.

1) Would you agree that if roads were 60m apart (on a 690km drive though, they are more likely kilometers apart), that if you were developing the software, you'd snap to the closest road.

2) If (1) is true. that means that the track can be off by 30m.

3) Whilst driving 100km/h at a range of 60m errors, that might mean that your position might lag 1 second behind. Clearly in real-world usage, that will have very little effect on accuracy, especially if your GPS navigation software uses accelerometers to help compensate.

Also clearly, if Mytracks was indeed faulty as claimed, you would have at least attempted to prove it by now, to end the war entirely. However, despite being easy to prove (just grab another less buggy tracking application), no such attempts seem to have ever been made.

I'm not saying the GPS doesn't work for you. I'm just saying clearly for your application's that your GPS can have an accuracy of 100m at times, and a maximum of 60m precision most of the time. That's fine for car navigation, but not really acceptable for fitness applications. You'd probably survive with any crap GPS though that can simply maintain some kind of lock, even if it's only on 4 satellites at a time. Those of us using it for fitness don't demand 1mm accuracy (even the garmin's are off), but for a phone which cost a significant amount, we'd expect accuracy at least on par with fitness devices released 4 years ago, but with car navigation, you probably wont notice the difference between a below average GPS, and exceptional GPS, unlike with fitness.
[Galaxy S I9000 General] DamianGto:
Well you still don't get it.

I travel even on roads that has many roads besides them.

It always show me on the right road. It would never work if it was like you claim it is.

Max 5 meters is what i has. If it would be over that it would show me on the wrong road.

Try to understand that sgs can have this precision.

Also try to understand that Google map don't work good.

Even if you get a 100% track it will be flawed when you switching between different layer.

Sent from GT-I9000 jpo. My own kernel for z4mod and with 342MB Ram
[Galaxy S I9000 General] t1mman:
I've posted many tracks, there flawless, either with MyTracks or with SportyPal.
[Galaxy S I9000 General] Oletros:
This is not true, it works flawlesly with other devices
[Galaxy S I9000 General] maesebit:
Not so flawless. In environments like those you showed GPS performs pretty well most of the time. The problem comes mostly when you're in city streets.

I posted a track myself where the GPS performed really well, better than those tracks you posted claiming they were great, but hey, my tracks were fine until.... ...until I got into an urban area.

Then again. When you drive through wide avenues, residential areas with only low houses, roads, highways, open spaces, and so on, the GPS peforms ok.
[Galaxy S I9000 General] 0301chris:
First tracks - walk in Barcelona, clear sky, I am on Docs Rom 7.6.2, date of my SGS battery is May 2010. I always do the following before using GPS: Delete GPS data from service menu, set to cold start and reboot phone. No data connection during the walk (I am on roaming and no WIFI). I always saw about 6 to 9 sats but it took me 20 minutes today to get a fix - after that I had b/w 4 to 7 fixes at most times (sometimes I get a fix in 11 secs sometimes never - unknown causes).

I have no idea how good GPS works in general - see my attached tracks made with GPStracker - I just took a screenshot (two parts to get a nice zoom).

So - is this what one can expect from a GPS in a dense city or should this be better?

Many thanks for any views on that!
[Galaxy S I9000 General] t1mman:
This one is in cities condition

http://www.google.com/maps/ms?ie=UT....800177,-71.253548&spn=0.087075,0.287704&z=13

One "jump" when I started the GPS then you can clearly see where I got around and the rest of it.

There's constructions in the area, so it seems like I'm "zigzagging" but it's spot on where you need to go.

First part is with plenty of traffic lights

The part, near the end, where it "looks" like it's jerking is actually a new "tunnel" (going under the exits) so, it's right on the spot.