Database Users

GPS Without A-GPS

Has anyone of you owners of DHD able to get the gps lock just incase you don't have internet connection for A-GPS to work. I had an iPhone 4 who will lock to GPS in few seconds even without a sim card and on dhd its impossible or will take very long to lock location without AGPS . IT'S THIS a problem or I am doing something wrong
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I was recently out of my own country and data roaming was set to off. I never realised it at the time but everytime I tried to use GPS (Copilot Live) it took literally 20 mins to get a lock, apart from once and then I had access to wifi. Sounds like this was the problem

niks_5in said:
Has anyone of you owners of DHD able to get the gps lock just incase you don't have internet connection for A-GPS to work. I had an iPhone 4 who will lock to GPS in few seconds even without a sim card and on dhd its impossible or will take very long to lock location without AGPS . IT'S THIS a problem or I am doing something wrong
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i usually get the lock well under a minute without any DATA connection like edge or wifi when i'm outdoors,
indoors it needs good 4-5 mins to get a lock.

Strange because iPhone 4 locks in minimum 7 seconds even without a simcard . That's means that DHD is using a cheap GPS receiver which will become unusable without data connection.
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There is something called "Hotfix".
If you have previously locked on a GPS signal, it will be faster to lock for the 2nd time.
BUT, if you started from a "coldfix" (means if you try to lock for the first time or quite some time after the 1st lock or far away from the location of your first lock), it could take minutes to lock.
However, I have to admit that DHD tends to have a slower lock...
Correct me if I'm wrong.

A-GPS dosent need a web connection, it uses the internet once a week to download the latest sat data to make gps lock quicker..... you can use apps like gps toolbox to download the latest A-GPS data.
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Doesn't the DHD download the A-GPS data automatically in the background?
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ViDtje said:
Doesn't the DHD download the A-GPS data automatically in the background?
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No you need an app to download the data, maybe some apps can be set to auto download the data though
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Then what app is the best? It only needs to be able to download the A-GPS data, nothing else.

ViDtje said:
Then what app is the best? It only needs to be able to download the A-GPS data, nothing else.
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Search for gps toolbox in the market, there is a free and paid version, both let you download the latest sat data
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I checked while reading this topic and my DHD got a lock within one minute of GPS (satellite only) being turned on. I had the phone in airplane mode before I turned it on so it was in effect a cold lock. I'm indoor at night so there's no direct line of sight either. Quite fast in my opinion.

I get gps lock within 3 to 10 secs with or without wifi,data. I have installed open gps tracker and first I ran it for 30 mins.
I don't know if that app is helping in gps lock.
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IPhone 4 locks in 7 seconds without a sim. You will never be able to geotag your photos in any android phone cause most of them have cheap and lousy GPS which relies on AGPS data for lock. Geotag will work best on iPhone if you give AGPS option to iPhone it works instantly
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niks_5in said:
IPhone 4 locks in 7 seconds without a sim. You will never be able to geotag your photos in any android phone cause most of them have cheap and lousy GPS which relies on AGPS data for lock. Geotag will work best on iPhone if you give AGPS option to iPhone it works instantly
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is that all ur guna say? shut up, unless your guna bring sumthing useful to the discussion. Maybe the iphone locks in 7seconds in ur wet dreams, but in reality thats bollox.
I mean you didnt even know what A-GPS was you thought it required a constant gprs connection while navigating lol
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Yes it does require a constant gprs connections you fool. Google yourself for details or create a post for replies
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niks_5in said:
Yes it does require a constant gprs connections you fool. Google yourself for details or create a post for replies
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AGPS is only used to locate the sats, you fool lol it downloads a file with the latest sat positions, so you device knows where to look speeding up sat lock lol no wonder you love the iphone, you have about as much processing power as one
http://en.wikipedia.org/wiki/Assisted_GPS
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[Q] How's the GPS?

I know the Samsung Galaxy S series aren't too stellar when using GPS; how is it on the S3?

bigb252 said:
I know the Samsung Galaxy S series aren't too stellar when using GPS; how is it on the S3?
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Haven't tested it on a drive yet. But it came up and hooked up virtually instantly in maps today. From inside my house. Never able to even hook up on my Captivate in the house, let alone quickly.
Fingers crossed...

Used it today for about 50 miles and it never dropped once. Did awesome. I was so used to my old captivate I almost forgot that a phone GPS can actually work.
It locks fast and stays locked

It was just the galaxy s 1 that had this issue. Sgs2 gps worked perfectly and same with sgs3 both lte and international
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bigb252 said:
I know the Samsung Galaxy S series aren't too stellar when using GPS; how is it on the S3?
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I used the Charing Cross app to test, and it was impressive for the number of satellites detected in my area which is partially blocked due to a hill, but it took a minute or two to go from accuracy of 260 ft down to 9.1ft. I had a Google maps navigation started cold, that showed my start a block away from where my blue arrow was actually located on the map.
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On the official Samsung site, it says GPS, rather than a-GPS. I did test it here in San Diego - cached my area, airplane mode, reboot, and maps got a tight fix on me in under a minute (closer to about 20 seconds).
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Accuracy of 3 m in about 6 seconds.
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quick accurate lock with mine as well. maybe sammy is finally starting to figure things out ;-)
2

When sitting in my bedroom the gps says that I am in my neighbors house.
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bigb252 said:
I know the Samsung Galaxy S series aren't too stellar when using GPS; how is it on the S3?
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Absolutely fantastic. Best I have ever seen. Phone saw 20 Sats and was able to lock in on 12 in about 15 seconds. Within 9 feet accuracy which is best I've seen here in Hawaii.

[Q] [q] strange battery life on the n4

Just got my new Nexus 3 days back.. and today was the first day using the phone not plugging it on and off thorough the day.
noticed something odd. I hadn't opened the maps app.. so it makes it even more strange.
any ideas?

Maps always runs itself. I believe this can be remedied by turning off location settings.
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Which app is that by the way? And turn off location settings and latitude.
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I just disabled maps
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droidmakespwn said:
Maps always runs itself. I believe this can be remedied by turning off location settings.
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the even more curious part was that the app had run only for 34seconds!
not faced the problem today, hadn't changed any settings. guess it will remain a mystery until it happens again?

Someone was having a similar problem a few weeks back. Try going from maps to navigation and accepting the user agreements etc. Someone found that this solved the maps battery drain.
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karanrajpal14 said:
Which app is that by the way? And turn off location settings and latitude.
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https://play.google.com/store/apps/details?id=com.gsamlabs.bbm.pro
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Endoran said:
Someone was having a similar problem a few weeks back. Try going from maps to navigation and accepting the user agreements etc. Someone found that this solved the maps battery drain.
Sent from my Nexus 4
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+1
This was an issue on galaxy nexus when updating from 4.0 to 4.0.1 .all you had to do is to go to maps accept t&c and that's it.
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GPS calculates wrong mileage?

Anytime I run an app like MyTracks or MapMyRun or Strava, my GPS is spot on but it calculates the miles wrong. It also get's progressively worse as it gets farther along. It starts saying 1 mile is at about .7 miles, then 2 miles at like 1.3 miles by the time I hit about 8 miles I've really only gone about 4.
Anyone have any idea? It's really driving me nuts. I'm running Vanilla Rootbox with franco kernel. I had this problem with two different versions of both the rom and the kernel, I doubt it's related to those.

Sounds like it's a app issue.
If your gps is spot on then the gps is working as it should.
All calculations on distance traveled would be done by a app reading the gps info. So if your gps is accurately reporting your location it's not at fault.
Sure the apps aren't giving you results in km? Sounds like it may be just that.

albundy2010 said:
Sounds like it's a app issue.
If your gps is spot on then the gps is working as it should.
All calculations on distance traveled would be done by a app reading the gps info. So if your gps is accurately reporting your location it's not at fault.
Sure the apps aren't giving you results in km? Sounds like it may be just that.
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That's what I thought too, but I doubt 3 apps are miscalculating the same way.Its not in km, first thing I checked
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The correct answer is GPS isn't 100% accurate its always off by at least 10m which adds up over the course of 4 miles. This isn't an issue with the nexus 4 it happens on all phones.
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konthewicked said:
The correct answer is GPS isn't 100% accurate its always off by at least 10m which adds up over the course of 4 miles. This isn't an issue with the nexus 4 it happens on all phones.
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That's not even close to the correct answer. Thanks though!
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konthewicked said:
The correct answer is GPS isn't 100% accurate its always off by at least 10m which adds up over the course of 4 miles. This isn't an issue with the nexus 4 it happens on all phones.
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Correct.
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MikeyCriggz said:
Correct.
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Eh. Unfortunately that's not how gps "tracking" (or math) works.
I don't think either of you actually read the problem, or I just explained it like ****. Gps Accuracy is not the issue, even the speedometer was correct. Only the mileage was off.
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Note 4 GPS Accuracy

I'm not getting great gps accuracy with this phone. Usually between 16-30 feet. My other devices are accurate up to 3 feet. I'm wondering what everyone else is getting with this phone. Using GPS status from the play store.

I just tested. I'm getting 10-12 feet.
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gps signal drops
I noticed that when I am using a map program like Waze or google Maps, the gps signal gets lost more often than when I had the Note 3.

raiders13 said:
I noticed that when I am using a map program like Waze or google Maps, the gps signal gets lost more often than when I had the Note 3.
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I notice this as well. My old S3 was very accurate, whereas the Note4 seems to "jump" around.
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10 feet

deeznutz1977 said:
10 feet
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What app are you using for this?
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Temetka said:
What app are you using for this?
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That's GPS Test /GPS Test +(paid). Great app.

I've noticed this as well when playing the game ingress. I wonder if it's due to the steel frame? My Galaxy Note 3 and Galaxy S5 was spot on.

Hmm.
Never thought about that.
My GPS does seem to perform better now that I have FireKat ROM on my phone.

Re tested.
Rooted running Firekat ROM and using some tweaks from the lag thread. GPS assist is running in the background.
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I too tested it on FireKat and got the same results. 10 ft. Makes me think it can be enhanced by a software update. Maybe in a future patch.

atrohde said:
I'm not getting great gps accuracy with this phone. Usually between 16-30 feet. My other devices are accurate up to 3 feet. I'm wondering what everyone else is getting with this phone. Using GPS status from the play store.
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Depends on your location and how many satellites are in sight but ~3 meters/~9 feet is about as good as it's going to get with just GPS. Maybe if phone locks into some Glonass satellites it could do a bit better.

Temetka said:
I notice this as well. My old S3 was very accurate, whereas the Note4 seems to "jump" around.
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I made a change on the WiFi settings and my GPS signal improved. I put a check on "Always Allow Scanning." Because I remembered that I had taken it off to try another app and that was around the time that GPS stopped working correctly.
go to Settings>Wi-Fi>Advanced>Always Allow Scanning; Put a check on this option.

Google maps says GPS signal lost a lot with the note 4... doesn't seem very good at getting a location.
Definitely love the phone. Came from the s4. My first note. Thought I was the only one that noticed crappy GPS signal
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I notice my phone says searching for GPS in the drop down thing. Goes away in a few seconds but is annoying.

10' Lock almost Instantly. Fastest lock of any phone I ever owned. And keeps its lock perfectly.
Here's my VIDEO

My GPS works great on my phone.
---------- Post added at 02:32 PM ---------- Previous post was at 02:31 PM ----------
Even to the room I'm at. Best GPS I've had on a phone

raiders13 said:
I made a change on the WiFi settings and my GPS signal improved. I put a check on "Always Allow Scanning." Because I remembered that I had taken it off to try another app and that was around the time that GPS stopped working correctly.
go to Settings>Wi-Fi>Advanced>Always Allow Scanning; Put a check on this option.
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Won't that eat battery more?
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I checked the scanning off because when driving using the maps WiFi spots pop up and I can't see where I'm going. LoL

To all those who saying they don't have issues with the GPS they probably don't use it enough to see that.