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Hi all,
i'm using tomtom 5.21 and a SOCKET bluetooth GPS receiver.
http://www.socketcom.com/pdf/gps/GP0820-521_ds.pdf
i've tried using it a few times as i just got it running up last week and it seems that tom tom's constantly saying that its losing gps signal or waiting for GPS signal.
its getting so annoying that i seem to realize that its not tracking your position down whenever u're moving. Park the vahicle for 30 seconds or 1 min and it tracks u down, move faster, stop for a roundabout for your turn in traffis and its lost its gps signal again.
i guess if one day i'm depending on this unit to save my life i'd be dead if it performs this way.
i'm also wondering if its because of the weather (rainy/cloudy day when i was using it) or is it because this unit is crap (was given to me FOC from a computer technicnan at work unused) and not SIRFIII and is not working accurately and deserved to be eBayed or binned.
comments welcome..
Just received my HD and having trouble with GPS. I went straight into Google Maps and selected Use GPS but after about 3-4 minutes it says that no GPS was found. Going into External GPS settings and unticking 'Manage GPS automatically' results in Google Maps saying that no device was found straight away rather than the 3-4 minute wait.
Any ideas?
EDIT: going into Google Maps options > GPS Settings and setting it to Managed by Windows results in me getting a 'Seeking GPS satellites' message but it stays on 0.
Oppressa said:
Just received my HD and having trouble with GPS. I went straight into Google Maps and selected Use GPS but after about 3-4 minutes it says that no GPS was found. Going into External GPS settings and unticking 'Manage GPS automatically' results in Google Maps saying that no device was found straight away rather than the 3-4 minute wait.
Any ideas?
EDIT: going into Google Maps options > GPS Settings and setting it to Managed by Windows results in me getting a 'Seeking GPS satellites' message but it stays on 0.
Click to expand...
Click to collapse
ok now just be patient and go to a place where you can see the sky
getting a fix the first time takes some time. you can speed this up using the QuickGPS under programs. This downloads a satellite prediction map so the receiver can find satellites much quicker. Otherwise the receiver has to scan for bypassing satellites, which can take a few minutes to complete.
check next forum threat: http://forum.xda-developers.com/showthread.php?p=2923926&posted=1#post2923926
think I had the same problem as you have right now.
Thanks Gogem. I didn't want to but I gave a hard reset a try then went straight to Google Maps and still no luck. After saying it was looking for satellites for 3-4 minutes it said it couldn't connect to GPS, cancel or retry
Oppressa said:
Thanks Gogem. I didn't want to but I gave a hard reset a try then went straight to Google Maps and still no luck. After saying it was looking for satellites for 3-4 minutes it said it couldn't connect to GPS, cancel or retry
Click to expand...
Click to collapse
as 6Fg8 mentioned you have to see the sky, inhouse or between tight buildings or in a canyon GPS isn't working. and.. this is by design of GPS (!) it can take up to 12 minutes to find the satellites! Technical background: all GPS infos streamed by the satellites have a very low power and data rate. QuickGPS can reduce this time. So be patient. Maybe a 3rd party app like "GPS Gate" (commercial, but 14 day trial available) may help.
Do you have another device to check the GPS receiving from your position, maybe your Blackstone is broken?
regards
ps: http://www.kowoma.de/gps/Signalaufbau.htm (sorry, German language)
Thanks. I just installed Co-Pilot 7 and checked the GPS signal. It must be because I'm inside. I can get 3 satellites on the receiver screen so it obviously is working. I'll just need to take it outside and see how I go then.
Oppressa said:
Thanks. I just installed Co-Pilot 7 and checked the GPS signal. It must be because I'm inside. I can get 3 satellites on the receiver screen so it obviously is working. I'll just need to take it outside and see how I go then.
Click to expand...
Click to collapse
in theory you need 3 satellites (of total 31 active today) to get your x-y position on earth and (optional) a 4th satellite to get your altitude. each satellit is running in an orbit of 20,000 km. therefore your max height can be 20,000 km ;-)
in praxis you may see ca 6..8 satellites.
regards
bla3603 said:
in theory you need 3 satellites (of total 31 active today) to get your x-y position on earth and (optional) a 4th satellite to get your altitude. each satellit is running in an orbit of 20,000 km. therefore your max height can be 20,000 km ;-)
in praxis you may see ca 6..8 satellites.
regards
Click to expand...
Click to collapse
yes in theory, but a lot of people mistake that as a hard requirement->when you pass, you must have a good reception for routing and such.
if you have seen the satellite graph, hte one with two or three con-centric circles, and satellite in or around those circles
you need at least two satellites in the inner most circle (45 degrees) to get a good lock, otherwise you woudl need more satellites to get a good lock.
the circles represent degrees from the verticle point of reference, ie think of you as the axis, and your feet is the origin.
Yeah in theory you need 3 points to triangulate. But I've never had a GPS give me my lat and long from just 3 satellites.
When I first opened my Polaris some time ago, it would not get a gps lock either. I had ordered an external gps antenna, so I hooked it up and got a lock real quick. Since then, I guess the gps chip in the phone knows what the gps signals taste like, so it always gets quick locks and works like a champ. In fact, it worked so well, I never used the external antenna again
LOL must be one of those new fangled learning chips you have there
JesseW said:
When I first opened my Polaris some time ago, it would not get a gps lock either. I had ordered an external gps antenna, so I hooked it up and got a lock real quick. Since then, I guess the gps chip in the phone knows what the gps signals taste like, so it always gets quick locks and works like a champ. In fact, it worked so well, I never used the external antenna again
Click to expand...
Click to collapse
thats the reason why software like quickgps exists, it lets the gps chip smell where the satellites are. kind of odor transmission tool ...
GPS working fine... just no reception indoors that's all. Disappointing seeing as my girlfriend's new kaiser gets a complete signal in a room with 1 window.
Oppressa said:
GPS working fine... just no reception indoors that's all. Disappointing seeing as my girlfriend's new kaiser gets a complete signal in a room with 1 window.
Click to expand...
Click to collapse
my touch HD gets signals indoors in three different houses. i was sitting quite far from the window, one of the building is my office -> thick concrete walls, etc. i know i should be cheering, but i'm very confuzzled... HOOOW IS IT WORKING with out a clear sight of the satellites?!?!
I was stunned (in a scary sort of way) just how accurate google maps got me based purely on mobile signal (before it tracked any satellites)...
It put the blue dot about 10feet to the left of where I was standing!
i dont know but i think gps is broken - i am loosing signal while driving in highway if i dont have hand up almost near roof - i made today almost 300km with avg speed 140km/h and touch hd gps *realyworking time* like 1/10 of whole trip. I realy think there must be some serios problem, because my co-driver with iphone google maps have totaly no problem
So I've had my dream since launch day in Canada, and the gps has been working fine until about a week ago. Recently my gps mostly refuses to lock, and when it dose, google maps shows me as being roughly 600km away from where I am.
I just went out for a walk to an area with no buildings or trees to block the sky, (I have had success locking from within my apartment building before, but just to make sure...), and it took about 30 min to establish a 'lock' on my position (600km away 5 km below sea level and moving at around 150 km/h).
GPS status showed between 5 and 6 satellites that it could see the entire walk. I then installed gps test and got roughly the same. I've tried rebooting several times, as well as leaving the phone off for about an hour.
Nothing seems to clear this issue up.
I was wondering if anyone else has had this problem, and if they got it fixed?
I'm currently running a rooted phone, did that several weeks (and a few reboots) before the gps issue cropped up.
Take it far away from tall buildings. Signals can reflect off of buildings and give you incorrect readings.
I used to be able to lock under a minute, now I can't lock at all. Same here.
hmmmm, I just opened up GPS Status 2 app and I'm not getting a lock either.
I'm guessing google maps is just using phone towers to approximate where I am.
I hope Endeavour didn't crash some sattelites on it's way to the space station lol
turns out my GPS is fine. I thought it worked inside my work place but it does not. It had no issues connecting while Iw as outside.
so I got in touch with rogers technical support, they put me in touch with HTC technical support. they said that it's most likely a hardware issue, and told me to get back to rogers. rogers is now saying it's an application issue, and are directing me to talk to google.
yey rogers....
sigh...
..EDIT..
and three factory resets later I have gps again...
Since my phone arrived that i can't get a GPS signal lock.
GPS Status can indeed see the sattelites but phone can't lock a signal...
After a lot of cache and factory wipes still no luck.
Anyone else having this problem?
How fast can you get a GPS signal lock?
I would like to see some other opinions before i send it back to warranty because it might be something fixable..
P.S: I've searched all around the forum and the web and i couldn't find a solution for this.
Cold boot lock 180 - 250 seconds .
jje
I had similar strange issues the first 2 days.
Then when I finally had a lock, I started using gps more and it works fine now.
It's almost like the gps module had to be warmed up
I read somewhere someone had a similar issue in the beginning and then it worked fine.
I'm also keeping an eye on my gps functionality..
Sent from my GT-I9100 using Tapatalk
Gawis said:
I had similar strange issues the first 2 days.
Then when I finally had a lock, I started using gps more and it works fine now.
It's almost like the gps module had to be warmed up
I read somewhere someone had a similar issue in the beginning and then it worked fine.
I'm also keeping an eye on my gps functionality..
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
I think i'll keep trying until i get a first lock before i send it back to warranty..
Just flashed back to KE2 to see if it's really not fw related.
I'll post the results after some tests
Do you guys have location service turned on? Not the one based on wifi but cell service?
try the following and tell us if it helped:
1) turn off the wifi- and cell based gps support (this doesn't help you much and sends your pos data to big G)
2) download "GPS Status & Toolbox" app from the market
3) download the actual satellite vectors with this tool (this you will have to do regularly, around once a week)
4) go out, start your nav app, do NOT move (easier for the GPS to get a fix)
5) come back in and tell us if that helped.
Cheers
Zap
Zaphod_b_1 said:
try the following and tell us if it helped:
1) turn off the wifi- and cell based gps support (this doesn't help you much and sends your pos data to big G)
2) download "GPS Status & Toolbox" app from the market
3) download the actual satellite vectors with this tool (this you will have to do regularly, around once a week)
4) go out, start your nav app, do NOT move (easier for the GPS to get a fix)
5) come back in and tell us if that helped.
Cheers
Zap
Click to expand...
Click to collapse
Will do.
I'll report back as soon as i test it
Thanks
Also make sure you have 3G data (not wifi) turned on.
I noticed that when 3G data is not on lock takes ages.
clubtech said:
Also make sure you have 3G data (not wifi) turned on.
I noticed that when 3G data is not on lock takes ages.
Click to expand...
Click to collapse
Everything works fine now.. I didn't know that was necessary to have 3G enabled.. At least the first lock.. After that, with 3G ON i was able to get locks within <15 seconds. Also, after this, with 3G OFF, and after rebooting phone, i got a lock within <15 seconds..
I guess my GPS is not broken after all
Thanks everyone who helped
I don't have 3G and neither do I enable any network. Here is a screenshot i took todays while sitting at a caffee. Maybe the fix takes a minute or two, but then it's very stable, does not loose the connection easy.
ive always locked in about 10 secs from day one every firmware ive tried, always held a solid lock too,best gps ive used yet phone or otherwise.
I'm now having fast locks too without 3G.. Even inside my house, on a 4 floors building (i'm on first) with all windows closed, i'm getting locks within 30 seconds.. Not bad. With 3G ON, it gets a lock within 20 seconds max.
Haven't tried outside yet though.. Will do tomorrow with 3G ON & OFF so i can compare both.
h20pt said:
I'm now having fast locks too without 3G.. Even inside my house, on a 4 floors building (i'm on first) with all windows closed, i'm getting locks within 30 seconds.. Not bad. With 3G ON, it gets a lock within 20 seconds max.
Haven't tried outside yet though.. Will do tomorrow with 3G ON & OFF so i can compare both.
Click to expand...
Click to collapse
it may have been the timing but i couldn't get a lock as soon as i got out of the subway station on saturday within 20~30 sec ish. So i closed google maps and enabled location service and bam 5sec and lock
I tried it with wifi earlier this evening and it jumped around a bit (never had this issue before)
ph00ny said:
it may have been the timing but i couldn't get a lock as soon as i got out of the subway station on saturday within 20~30 sec ish. So i closed google maps and enabled location service and bam 5sec and lock
I tried it with wifi earlier this evening and it jumped around a bit (never had this issue before)
Click to expand...
Click to collapse
Haven't tried google maps outside yet, but inside i can say it takes forever to get a lock.. even with 3G ON. However, when it does get a lock, accuracy is really bad (>60m).
On GPS status, GPS accuracy is also kinda bad.. I can't get down of 20 m of error (20 m min.. usually it's around 40/60). However, lock times are faster than on goole maps.
Is there a way of improving accuracy?
Being inside and trying to get a better accuracy is not really possible. With 3G on the GPS will use Cell tower triangulation to get A-GPS which is not very accurate indoor.
Use GPS outdoors!
CEPi said:
Being inside and trying to get a better accuracy is not really possible. With 3G on the GPS will use Cell tower triangulation to get A-GPS which is not very accurate indoor.
Use GPS outdoors!
Click to expand...
Click to collapse
I will.. Tomorrow
Enough of testing for today.. Time to go to bed.
Night all
I know this sounds crazy.. and until I tried it over and over.. I did not believe it either..
I did the hardware fix , where you bend up the gps antenna a bit, so it touches the cover when closed. but I litteraly had almost no change in signal.. like I could not even get the GPS restore to work..
I was pi$$Ed..
so I took another look at the phone / antenna etc.. got be thinking about signal and its orientation.. the GPS ant. is on the back of the phone, where it gets covered by your hand faces the ground or whatever is under it.. so I turned it- landscape..screen facing me.. clock wise... so the e from tmobile is top side..
guess what.. it works
I am locking on to 9-12 sats..every time..
let me know what you find happens..
How fast are the locks. Te issue is not how many sats since it only needs a few to get an accurate signal. The problem is that the phone takes 1900% longer than any other phone I've ever used to lock, which makes the GPS functionality virtually useless for geotagging pictures and posts to Facebook, twitter, google+ as well as checking into places.
Until it gets a decent lock the bubble around your location is miles in diameter.
Phone literally take upwards of 10 minutes to get a lock at times.
Sent from my iPod touch using Tapatalk
with in 10 seconds I was locked in w/less than 40 ft accuracy
N8ter said:
How fast are the locks. Te issue is not how many sats since it only needs a few to get an accurate signal. The problem is that the phone takes 1900% longer than any other phone I've ever used to lock, which makes the GPS functionality virtually useless for geotagging pictures and posts to Facebook, twitter, google+ as well as checking into places.
Until it gets a decent lock the bubble around your location is miles in diameter.
Phone literally take upwards of 10 minutes to get a lock at times.
Sent from my iPod touch using Tapatalk
Click to expand...
Click to collapse
a little exaggerated perhaps? my phone is the original batch and i've never had it take ten minutes for a lock. i mean i'm in Manhattan so the wifi assist probably helps it alot in terms of lock. the gps on the vibrant was never good enough for navigation but good enough for everything else imo.
I don't know about you but all my gps successes didn't last. first time i did all my gps fixes, it worked great. as time went on, went back to sh|t.
10 minutes it about right for me at the moment... ill try the orientation thing lol
Sent from a cell tower to the XDA server to you.
Yea one of the members here found this out a lonnnng time ago ever since then I always face my phone with the back facing the sky to get that first lock. Most of the times it works
dandab said:
I don't know about you but all my gps successes didn't last. first time i did all my gps fixes, it worked great. as time went on, went back to sh|t.
Click to expand...
Click to collapse
Agreed, same experience I've been having. There are some good days and there some days that it's flat out stubborn like a bull. It won't even lock even on a clear night sky.