Hi,
today I upgraded my htc3600 to test gps version, and gps work's really nice! But I can't find gps on/off button and wondering is gps working all the time or just when gps programs running!!?
Regards
I believe it's auto on off. Because after a certain time if I leave my navigation software off and turn it back on it has to redetect the satellites. But I could be wrong. Then again I don't notice any difference in uptime. Still get about 2 days per pull charge.
Mikroft said:
I believe it's auto on off. Because after a certain time if I leave my navigation software off and turn it back on it has to redetect the satellites. But I could be wrong. Then again I don't notice any difference in uptime. Still get about 2 days per pull charge.
Click to expand...
Click to collapse
ok, i believe so.....
tnx
Tiberius23 said:
ok, i believe so.....
tnx
Click to expand...
Click to collapse
GPS will be activated as soon as an application send a request on com-port 9. By default GPS is off. When a program stop listening on com-port 9 the GPS turns off.
Furthermore GPS requires little power usage. In a common Bluetooth GPS mouse the bluetooth radio part consumes most power.
Guys, so can we confirm that it's GPS and not A-GPS? And yes, I'm a rookie in the field.
A-GPS and GPS are both working GPS... it is just that A-GPS also incorporate additional functions which allow position fixing based on cellular network position signal. In fact, A-GPS is better than normal GPS in city environment as it allow quicker and more accurate position fix when compare to just using GPS satellite along. I hope this will make it more clear to everyone regarding A-GPS and normal GPS... they are both the same thing but A-GPS is better for city environment.
Anyway, just my two cents.
wowpeter said:
A-GPS and GPS are both working GPS... it is just that A-GPS also incorporate additional functions which allow position fixing based on cellular network position signal. In fact, A-GPS is better than normal GPS in city environment as it allow quicker and more accurate position fix when compare to just using GPS satellite along. I hope this will make it more clear to everyone regarding A-GPS and normal GPS... they are both the same thing but A-GPS is better for city environment.
Anyway, just my two cents.
Click to expand...
Click to collapse
Yes, I understand that A-GPS may allow you to get your position quicker because it's assisted by cell towers but what I don't understand is that I don't know if cellular towers must be present for it to work? In other words, can I use A-GPS in the middle of no-where? If not, then I need GPS and need to know if the Trinity has GPS or A-GPS...
forcedalias said:
Yes, I understand that A-GPS may allow you to get your position quicker because it's assisted by cell towers but what I don't understand is that I don't know if cellular towers must be present for it to work? In other words, can I use A-GPS in the middle of no-where? If not, then I need GPS and need to know if the Trinity has GPS or A-GPS...
Click to expand...
Click to collapse
In my country, A-GPS is not supported by the mobile operators. However, my trinity doe have functionable GPS, therefot, the GPS will work without celltowers...
(allthough in my opinion, the quality of the GPS recieving is poor at best)
forcedalias said:
Yes, I understand that A-GPS may allow you to get your position quicker because it's assisted by cell towers but what I don't understand is that I don't know if cellular towers must be present for it to work? In other words, can I use A-GPS in the middle of no-where? If not, then I need GPS and need to know if the Trinity has GPS or A-GPS...
Click to expand...
Click to collapse
A-GPS assists, it doesn't need to be there for the GPS to work, the receiver just locks in slower without it. You could be out in the middle of nowhere with no phone service but GPS is still sending signals from space and the GPS receiver will work. It would be stupid to have GPS that only worked when there are reliable cell towers...we know how reliable they are .
Hi, anybody with this test rom can do a benchmark for battery life with gps always on and see how long it lasts?
tks
Matterhorn said:
A-GPS assists, it doesn't need to be there for the GPS to work, the receiver just locks in slower without it. You could be out in the middle of nowhere with no phone service but GPS is still sending signals from space and the GPS receiver will work. It would be stupid to have GPS that only worked when there are reliable cell towers...we know how reliable they are .
Click to expand...
Click to collapse
I was under the impression that towers were necessary the way everyone's always bummed out to hear that a phone's GPS unit is an A-GPS one. Glad to hear it's better (?).
I found a link at wikipedia.com that gives a good explanation of a-gps.
http://en.wikipedia.org/wiki/A-GPS
[email protected] said:
Hi, anybody with this test rom can do a benchmark for battery life with gps always on and see how long it lasts?
tks
Click to expand...
Click to collapse
Nobody ?
Mfg Ulti
Ulti said:
Nobody ?
Mfg Ulti
Click to expand...
Click to collapse
I did not a benchmark but my experience are very good.
I drove 2 hours and had a battery drain of 10%.
If the battery drain scales linear it means I can drive 20 hours nonstop.
I think 20 hours is not possible but you can easely drive up to 8 hours on your battery.
Hi,
wow 8 hours that´s enough !
in how is the signal quality by comparison
with an SIRF III or another GPS-Mouse ?
Cu Ulti and THX !
Ulti said:
Hi,
in how is the signal quality by comparison
with an SIRF III or another GPS-Mouse ?
Cu Ulti and THX !
Click to expand...
Click to collapse
In my opinion not as good as a stand alone GPS. I own a SiRF XTrac GPS (royaltek rbt1000) and it is far superior. P3600 fix times are in the multiple minutes sometimes/mostly, and reception is worse. My stand alone GPS almost allways recieved 6 to 10 satellites, my P3600 usually 2 to 4, sometimes only 1, hardly ever more then 5
I just tested my built in GPS in downtown area, lots of buildings. It cannot always hold the signal and drops sometimes. The standalone has never dropped a signal for me yet.
Hi,
that makes me sad !
Is there a possibility to improve the quality with a new ROM ?
I don´t think so but perhaps somebody knows more than I !
Mfg Ulti
Ulti said:
Hi,
that makes me sad !
Is there a possibility to improve the quality with a new ROM ?
I don´t think so but perhaps somebody knows more than I !
Mfg Ulti
Click to expand...
Click to collapse
Well I mean if you're not in downtown core area it works fine. Still takes a bit longer to get a fix than my BT unit but other than that it works fine.
Comparison ..
Ulti said:
Hi,
wow 8 hours that´s enough !
in how is the signal quality by comparison
with an SIRF III or another GPS-Mouse ?
Cu Ulti and THX !
Click to expand...
Click to collapse
I did a comparison between the trinity internal GPS and a SiRFIII GPSr.
http://forum.xda-developers.com/showthread.php?p=1123327&posted=1#post1123327
Have a look for yourself.
Related
I believe Kaiser rely on the Qualcomm chip for GPS. How is the performance. People say good thing about the SIRF III chip. How is the Kaiser GPS compare to the SIRF III? Anyone know?
welll in most cases built in gps arnt as reliable as the actuall thing... they are off sometimes
I guess it may depend on what you want/need to do with GPS.
If I turn it on and run Google Maps, it shows me right in the middle of my house, and that's where I am. If I move from one end of my house to another, I again appear in the right place.
To use GPS do we require to have gprs or 3g data activated.
Or is like integrated FM Radion which doesnt require data connection.
No -- there is a GPS receiver built into the unit that sends NMEA 0183 data over a serial port. You'll probably need map software; any software that works with WM6 and a Bluetooth GPS should do the job (e.g. TomTom 6).
I use Googlemaps and TOMTOM 6 with no problem.
I need to mention that I am a current HTC Trinity owner, and if IF if IF if IF the Kaiser has the same A-GPS chip found in the trinity, then this is what we should expect (from my experience with the Trinity)
1- Initial fix time can take long (sometimes it takes 2 minutes, sometimes 5 minutes, sometimes 10 minutes, and sometimes IT NEVER gets a fix and no GPS singal can be found)
2- Once the GPS get a fix, then it works perfectly and flawlessly.
So I only hope that the Kaiser will solve the initial fix problem.
Has it now "normal" GPS or the mobile Version AGPS
I guess you could upgrade your radio to 1.40+ and try again. They said there's a big improvement to GPS fix.
Talking about TTFF, if you are moving, or inside a building, I think it will take longer than usual to get a fix. I live in a really urban area, but once I stand still in an open area, I usually got fix in 2-3 minutes, without exception.
Someone did a test in the Trinity forum - the accuracy of the qualcomm chip is even better than that of the sirf-iii.
However, a major problem though is the lack of a software assisted gps problem that can improve the ttff time. (Though qualcomm said there's one, but until now it's still vapourware.)
ww2250 said:
I guess you could upgrade your radio to 1.40+ and try again. They said there's a big improvement to GPS fix.
Talking about TTFF, if you are moving, or inside a building, I think it will take longer than usual to get a fix. I live in a really urban area, but once I stand still in an open area, I usually got fix in 2-3 minutes, without exception.
Someone did a test in the Trinity forum - the accuracy of the qualcomm chip is even better than that of the sirf-iii.
However, a major problem though is the lack of a software assisted gps problem that can improve the ttff time. (Though qualcomm said there's one, but until now it's still vapourware.)
Click to expand...
Click to collapse
I also have the Trinity and can back up the above comments. I have a Sirf III device as well and apart from the Time To First Fix being quicker there is no noticeable difference between the two - both very accurate and don't lose their fixes.
TheEngineer0815 said:
Has it now "normal" GPS or the mobile Version AGPS
Click to expand...
Click to collapse
You might find this interesting: http://mobilitysite.com/2007/08/assisted-gps/
Gordon
GordonTGopher said:
You might find this interesting: http://mobilitysite.com/2007/08/assisted-gps/
Click to expand...
Click to collapse
Really interesting. The author of this article think that the Kaiser will have a Sirf-III. Now I think for the first time, we got a device with 2 GPS, a dedicated Sirf-III GPS chip together with a Qualcom integrated GPS.
I would imagine it will greatly increase the accuracy as well as the TTFF
Oh, wait, HTC might disable the Qualcom GPS, and just use the Sirf-III. See what they did to Hermes
Does anyone know how to start the gPS on the Kaiser - I bought one ...but don`t know how to start !
i have a tilt running at&t bigstorage rom when i try to use my telenav inside it says the gps signal is weak. is there any update to get the gps to work inside?
GPS requires a (fairly) clear view of the sky. No GPS unit works well indoors.
Sleuth255 said:
GPS requires a (fairly) clear view of the sky. No GPS unit works well indoors.
Click to expand...
Click to collapse
true but with my old hp 6515 when I bought it, it didn't work inside. then I found an update and it work perfectly inside. also saw on mobity todays website a video review of the tytn 2 and he found satellites inside.
LuXx said:
true but with my old hp 6515 when I bought it, it didn't work inside. then I found an update and it work perfectly inside. also saw on mobity todays website a video review of the tytn 2 and he found satellites inside.
Click to expand...
Click to collapse
Sleuth255 didn't say it WON'T work inside ... he said it won't work well
common sense really ... mine works inside & outside ... just fewer satellites when indoor compared to open outdoor
another note :
I get better GPS strength signal when using IGO compared to TomTom ... so it also might be software bug ... just a guess
but the part about indoor/outdoor still hold true
UnicornKaz said:
another note :
I get better GPS strength signal when using IGO compared to TomTom ... so it also might be software bug ... just a guess
Click to expand...
Click to collapse
Indeed, the software may be under or over reporting the signal strength or the software may assign different parameters to what it decides it optimum.
UnicornKaz said:
but the part about indoor/outdoor still hold true
Click to expand...
Click to collapse
Steel framed buildings, heat reflective glass/coatings, stucco walls .. all affect signal strength to some extent.
I've got 4 GPS units and they all get a signal in most buildings. Eventually. The GPS Chip in the kaiser is remarkably sensitive, imo & ime.
Hi all,
Could you please, be kind and post you experience with TD's GPS...
Since I got my TD(4 days) I have not been able to test the GPS at all
I have loaded some soft that could help me here. ( I travel a lot between Korea and Japan). Cannot really use the phone here, but WIFI works great and I thought I would give the GPS a test run.....no luck YET..
TD's own: QuickGPS has downloaded(through WIFI) all the info and it is up to date......But how do I set up the GPS itself???
Phone did not come with preloaded GPS software so,I have loaded following soft on itnone of them would recognize the gps)
i.e. " no GPS found."
1.Google Navigator 3.4
2.GPSvp (http://gpsvp.com)
3.Effica GPS Utilities (http://www.efficasoft.com/gpsutilities/index_wm_ppc.html)
I would really like to test out the GPS here first.I am returning to EU (home) in october or november and I would like to use it there as well.
sorry for the bump
I tried the search...not just this forum but all of XDA.....I cannot seem to find one successful step-by step activation as of yet???
Nobody has internal GPS running on their TD??
Anyone?
Runs perfect and is good quality.
Make sure you let windows manage gps (in external GPS settings):
programport COM4
hardwareport none
and in last tap check the checkbox.
Programs find gps at Com4 at 19xxx baud.
THX RIEL
thank You for you reply.
Will try tommorow morning.
Riel said:
Runs perfect and is good quality.
Click to expand...
Click to collapse
Don't you have a problem with the static navigation? This behavior "drives"
me nearly crazy, because beside of that, the GPS in TD is superb...
On mine, no programs can access the GPS and the programs will lock and crash the phone when it tries to connect to GPS.
The onlt one that does not lock the phone is TomTom, but it wont connect to GPS.
I've tried combinations of the recommended port stttings, but I still get no GPS.
I have not activated A-GPS, so I don't know if the phone came with this already activated - how would I check this?
My GPS is a pain in the arse, From what i have read its because of the static navigation. So far it says i live in house number 20 when I live in house number 16 and when i'm on route I'm yet to hear a " You have arrived at your destination" because its accuracy is off about 50 metres.
Hopefully there will be a fix for this very soon.
can someone get me up to speed a bit? what is the 'static navigation' that i keep hearing about..
admittedly, i find sometimes the gps is slightly less accurate at placing my exact location compared to my old Trinity, but otherwise its worked great for me..
PaulusUK said:
On mine, no programs can access the GPS and the programs will lock and crash the phone when it tries to connect to GPS.
The onlt one that does not lock the phone is TomTom, but it wont connect to GPS.
I've tried combinations of the recommended port stttings, but I still get no GPS.
I have not activated A-GPS, so I don't know if the phone came with this already activated - how would I check this?
Click to expand...
Click to collapse
Hey, have you got installed TomTom 7? I'm running TT7 and when I select "internal GPS receiver" it connects perfect. I know this doesn't exist in TT6, but I can also get my GPS running in TT7 if I set it to use a BT receiver on COM4 at 57600 baud. (Assuming you didn't mess around with the standard GPS settings, like HTC meant them to be )
Google maps is using the selection of "use windows settings".
racerx_ said:
can someone get me up to speed a bit? what is the 'static navigation' that i keep hearing about..
admittedly, i find sometimes the gps is slightly less accurate at placing my exact location compared to my old Trinity, but otherwise its worked great for me..
Click to expand...
Click to collapse
Check this thread out.
http://forum.xda-developers.com/showthread.php?t=402039&highlight=static+navigation
and this.
http://forum.xda-developers.com/showthread.php?t=401833&highlight=static+navigation
hi guys
Same problem here. AGPS is disabled. I have tried Garmin,TomTom, iGo and google. 95% of the time it can not lock onto the sats. Once in a while it will work fine. Last night it picked up the sats in my bedroom on the second story and this morning outside in clear sky it found 4 sats but with very low signal and could not give me my cordinates, gave up after 15 min.
I have tried GPS tools and even that won't lock onto the sats. Data is upto date with quick gps.
So is it the hardware problem or has it to do something with radio? It can't be faulty TD because there are a lots of people with the same problem, and why lots of other users have no problems accessing the sats?
How is your gps working?
hi
great going sofar...thanks to all. We still have no real answers.
Let's keep this one going.
Looks like GPS is an issue with TD.
( Other than GPS...I am loving this sweet phone )
Now I am trying different roms to see if it is related to that. Will let you guys know if find anything.
Strange, on all ROMS my GPS reciever just works perfect.
Almost the best piece of hardware on the device
As I mentioned in Another topic, I use the GPS for TrackMe, at the same time I am navigation via Igo, and at the same time I showoff Google Maps with GPS support.
It functions very well!
Did you get the GPS-Fix downloads? It speeds up a lot.
Yes got the gps fix downloads but still no go. Still have not lost the hope. I hope its not some hardware problem.
I was fed up messing with mine, so I did a hard reset, and its sorted ...... for now!
same as Paulus
I did a hard reset....and it works perfect. No other adjustments done.
Tried the TomTom, Tracky Pro, GPS VP, and the HTC GPS Tool....all work no problem...outside I get a fix within a minute sometimes seconds.
I think one of the quirks that the TD's GPS has is that, when it's in Acquiring Satellites mode it doesn't seem to spit out any sort of status. The first time I noticed that I thought my internal GPS wasn't working, since with my external Holux unit I can see the satellites which the Holux was trying to lock onto.
Whereas with the TD's built in GPS it just snaps from nothing to.. acquired. So it's hard to see wheter it hasn't gotten a signal because it's in a poor area of reception or not. Usually I'll just try and stay still till I can get a lock.
My HTC Diamond is supposed to have eGPS which should facilitate quick acquisition of position. I also read that with eGPS one should get a fix indoors.
However, I'm finding that my regular Garmin navigator (an eTrex Vista HCx) gives me faster acquisition times. And works better in the home.
So is eGPS an over-hyped gimmick? Or do I have to do something to get it to work? Or must the local cellular network be upgraded to support it?
Please help.
Google maps uses it by default on my device.
The Diamond has AGPS not EGPS
Diamand has AGPS not EGPS
Alfredos said:
The Diamond has AGPS not eGPS
Click to expand...
Click to collapse
Thanks. So the Diamond has AGPS which seems to be overhyped
Maybe my next phone will have eGPS ...
aGPS
what program are you using to get a gps fix? google maps gives me a fix pretty quick but tomtom takes longer... i think it i have google maps open in the background and then open tomtom i get faster/better reception...
JanDaMan said:
google maps gives me a fix pretty quick but tomtom takes longer...
Click to expand...
Click to collapse
Are you sure Google Maps isn't getting its fix quicker by virtue of it using triangulation of Tx towers, and not GPS from the outset?
Mathew
A GPS from what I understand means it downloads a "database" of some sort from the web and saves it to the phone, said "database" is a kind of location guide of where the GPS satellites are, thus enabling it to get a faster fix.
By default I think it updates itself every 7 days, don't know if you can change that never bothered to look, but i update mine manually probably sooner than that - maybe every 2 days or so.
Program on the phone is "Quick GPS" incase you hadn't run it yet.
Google maps is ridiculously slow in my opinion at getting a fix especially when i compare it to TomTom 7 which I'm running on the phone and it can get me a fix from cold boot to 8 Satellites or more in under 10 seconds, every time without fail.
Windows Live Search however is still slower than TomTom 7 but is quicker at getting a fix than Google maps in my experience, problem with Google Maps and Live Search I believe is although it may seem slow at getting your location it might not be, reason being is because it has to download the piece of map it needs for where you are, the time delay I believe is in it downloading the map and processing it to screen - not actually getting your position, I think it has your position quickly enough but it can't display it because it doesn't have that part of the map yet.... catch my drift.
- maybe I'm wrong on this one but thats my opinion.
Someone on here will probably disagree with most of the above, but there you go.... It probably explains this in the Phones Manual but I'm a typical arrogant male and refuse to read manuals...unless it's a Haynes Manual for my car which I read every night before I go to bed.
Happy Days!
.G.
#6: errr... that is eGPS!
The Diamond has AGPS not EGPS
Click to expand...
Click to collapse
Sorry mate, correct me if I'm wrong, Google maps tells me my position (it's not very very accourate indeed) without using gps data (for use gps data it asks me to check a specific option). Isn't EGPS the technology that gives u the posistion using GSM antennas ?
smogdragon said:
Sorry mate, correct me if I'm wrong, Google maps tells me my position (it's not very very accourate indeed) without using gps data (for use gps data it asks me to check a specific option). Isn't EGPS the technology that gives u the posistion using GSM antennas ?
Click to expand...
Click to collapse
First Google maps is very fast to find position cause it uses GSM antennas. EGPS permit to use both GSM antennas + classic GPS. Diamond was to be eGPS but finally not. It is just A-GPS. But as mentionned before, if you want to get a fast fix with TOMTOM or iGO use Quick GPS before (take less than 10 second to download gps datas) then launch your gps soft it will fix in less than 15 seconds.
mike_sendrove said:
#6: errr... that is eGPS!
Click to expand...
Click to collapse
No, the Diamond does not support eGPS.
Google Maps uses its own system which, for all intents and purposes, works in a very similar way - namely triangulation of transmitters cross-correlated with its own database of surveyed transmitter sites.
It is worth noting that eGPS is a trademarked term (owned by CSR) covering a very specific hardware implementation of transmitter triangulation - it is not the first nor only system to do this.
Mathew
MJNewton said:
Are you sure Google Maps isn't getting its fix quicker by virtue of it using triangulation of Tx towers, and not GPS from the outset?
Mathew
Click to expand...
Click to collapse
no no i'm talking about the actual GPS fix is fast, not the approximate signal tower thing (which is instant)
When the Diamond and Touch Pro were initially unveiled they touted eGPS, why is it not included? If anyone doesn't believe me just look it up on google.
Now please no groaning when you see this topic. I know the GPS has been hammered to death on these forums; this post is my vein attempt to see if one particular area of interest of mine has at all moved forward.
(let's also side-step the whole "does your GPS lag?" issue here too!)
(..and, for clarify, I'm referring to AGPS as in the use of the mobile phone network to 'assist' positioning by use of triangulation in areas of poor/no GPS reception, and NOT the use of QuickGPS to download current sat. info in an attempt to get a quicker initial fix)
I used to use TomTom Navigator v7.450; it worked (of a fashion! ) although one specific thing that never worked was that whenever AGPS was enabled (using AdvancedConfig or similar) TomTom would get a signal and then immediately drop it again.. on/off on/off etc.. the fix being to disable AGPS.
I must admit I'm suspicious about HTC having their stock ROMs with AGPS disabled by default - especially as this was initially a 'selling point' of the device and part of the sales blurb ("not only does it have GPS but really good GPS using AGPS".. oh the irony!) - have they themselves ever got it to work?!?!
Now TomTom Navigator v7.910 is out (have just installed it myself, currently waiting for an updated map to download). I have seen it muted that this now works with AGPS on the Diamond or maybe the Pro (ie. someone reports the above bug, yet claims it now works having moved to v7.910). Can anyone else confirm this? More importantly, can anyone confirm AGPS has given the Diamond any GPS-related benefit what-so-ever?? (ie. great if it doesn't stop TomTom working anymore, but does it actually improve it like it should?).
I'll of course try it out myself later today or over the weekend and report back.
Hope this makes sense.. cheers.
just tried TomTom 7.910 (9185) with AGPS enabled, and cant say i noticed much difference.
seems the same now with it enable or dissabled. Cant be sure tho, havent done a long journey yet.
Will update later/tomorrow.
mugglesquop said:
just tried TomTom 7.910 (9185) with AGPS enabled, and cant say i noticed much difference.
seems the same now with it enable or disabled. Cant be sure tho, haven't done a long journey yet.
Will update later/tomorrow.
Click to expand...
Click to collapse
Thanks for taking the time etc.
Interesting, because..
I've just taken a wonder outside and found I'm still getting the signal constantly being lost bug (looking at the screen that shows the sat. bars I have a good signal for a few seconds, then this goes and 'No GPS device' is displayed, then good signal back again and so on).
On this Diamond I'm using ROM 1.93.401.2 the the supplied radio (1.0.25.05), as I suspected this 'improvement' (potentially) noticed by you/others is more likely a result of a ROM/radio update and not a TomTom software update (guessing this AGPS bug isn't the first thing you try after flashing is it?).
Hmm..
nb. I'm using the exact same version/build of TomTom as you
hmmm... yeh, i'm going on a 60+ mile journey later, so will have a play.
Using Dutty's 3.4 ROM and Radio is BS14...
I thought that the whole point of AGPS is so you could help you get a GPS fix when indoors. Which I always thought was an unusual selling point when the entire purpose of GPS software is to help you find your way in the outdoors. Perhaps it could be more useful for those new tagging services that are popping up.
Anyhow I've been running a fairly recent version of iGo8 using Dutty's Rom 3.3 and 3.4 (both with that new radio).
With AGPS turned off, GPS signal is quickly attained and holds strong outdoors. Nothing indoors, naturally.
With AGPS turned on (via Duttys "AGPS Settings" utility), GPS signal is as quickly attained and flickers fully on then fully off, repeating constantly. When indoors, nothing at all.
So, with iGo8, AGPS seems to be a non-runner.
By the way, I once read that AGPS has to be configured to your particular mobile provider. Perhaps that's the issue?
Same here, with a-gps enabled signal drops constantly
after my journey yesterday, had the same problems as above.
tried with TomTom 7 and iGo8
I've never had any problems with GPS apart from slow getting a moving fix when the unit is physically very hot.
The main benefit of AGPS for me is that you can get your location on Google Maps within 1500m or so without enabling GPS.
It also proves A-GPS works.
ben cole said:
I've never had any problems with GPS apart from slow getting a moving fix when the unit is physically very hot.
The main benefit of AGPS for me is that you can get your location on Google Maps within 1500m or so without enabling GPS.
It also proves A-GPS works.
Click to expand...
Click to collapse
Hmm, I think this is thanks to googles effort, not AGPS... Google uses Google Gears API which can position you by using basestations and SSIDs.
AGPS is correcting/updating the GPS data with actual almanac data sent from you mobile provider...
Pitchb3nd said:
Same here, with a-gps enabled signal drops constantly
Click to expand...
Click to collapse
Same for me, anyone being able to use TomTom and AGPS without losing signal periodically?
ben cole said:
I've never had any problems with GPS apart from slow getting a moving fix when the unit is physically very hot.
The main benefit of AGPS for me is that you can get your location on Google Maps within 1500m or so without enabling GPS.
It also proves A-GPS works.
Click to expand...
Click to collapse
Yeah Google Maps does this on its own without having AGPS enabled on the Diamond. I believe AGPS is supposed to be more accurate than 1000m - 1500m though.
Oh and I believe the way that Google Maps gets its position depends on your mobile provider. I used to get the message "your location is not available" constantly on my network but one day (simultaneously as the iPhone was released in my country), the location was available. So I believe that the network flicked a switch for this technology to work.
AGps and TomTom
Hi,
agps have need to run to:
1) Carrier to inform MobilePhone here is (Is a Base Station Issue)
2) Public information about position
On mobilephone if is enable i think is need to have different information, and tomtom have old pattern to process agps information.
With googlemaps have new process and can use.
With my diamond agps run (googlemaps)
Cityhunter71
Please, don't mix the Google technology and A-GPS. They have nothing in common.
Google maintains their own privately held database of GSM-cellids which GMM can query to determine your position based on the current cellid.
A-GPS is a technology where the GSM-basestation itself receives GPS-satellitedata and relays it to the device. With this additional data, the GPS-receiver in the device is supposed to achieve a faster fix.
Have fun!
a-gps works with 7.450
i remember once that it was taking forever for the satelites to be found yet is was updating my postion on the map constantly via a-gps (which im sure was enabled by default in stock rom as ive never changed it)
a-gps is useful inside because you usually have your phone with you and to find a route, you need gps
Apologies for my erroneous post.
I realised my error today when I installed Google Maps on an ageing Blackberry I had unlocked to play with.
Started it up and lo and behold there was my location....thought I'd better head back here to suffer my shame ...LOL
Thanks for the input guys.
So - in summary:
Even with later ROMS / radios / software applications, there is still yet to be seen any benefit from the Diamond (theoretically) having an A-GPS capability.
RUBBISH!!
I personally subscribe to the theory that there is a missing link between the A-GPS driver type software and an info feed from the likes of the network operator, ie. it's all very well it picking up info on the network but without a back-end database to translate this it's useless.
As far as purpose goes.. I personally think A-GPS sounds on paper to be a great idea. Not a replacement for GPS, nor to be used exclusively indoors, but a good aid/starting point. For example, if I'm sitting in an unfamiliar office in London and wanted to use TomTom to navigate me a route to where I want to get to, A-GPS could provide TomTom with a rough starting point. Similarly, I often find myself launch a nav program (when I'm lost!) and standing there for up to 5 mins waiting for a fix.. at least this would give me an approximation from which I could probably work out myself where I was from looking around me. In my mind when you first fire up TomTom on the Diamond A-GPS should simply put you in the right postcode and start doing its stuff while the GPS seeks out its signal, and not still show me as being either at Home or its last known destination. But in any event - it seems not to work!! Bugger!!
I thought that aGPS was also to help hold a GPS signal when in tunnels, canyons, heavy forest cover (ie.Redwoods in this area, many tower to well over 300 feet!) or any situation where the signal from the satellites may be impaired, or even blocked completely.
Im running Duttys 3.5 and with AGPS on I will get a signal for 10 seconds, then it goes for a second, then back for 10. then gone. Turned AGPS off and all is well.
I can confirm that AGPS does work, some parts here in Finland it works and someplaces it does that on off thingy. once when I was just playing with my tomtom it got signal where it would never get it without it. but mostly here it doesnt work properly so i disable it.
But in Helsinki (larger city) it works properly and helps getting signal fast beneath tall buildings.
But yeah it doesnt work in my hometown so its kinda rubbish here.
Maybe it has something to do with how new are nearby cell towers or something. dunno
In Trondheim, Norway it worked with Telenor and gave me a signal indoors, but when I use it together with TomTom the signal gets lost periodicly, really really annoying since "everything" is already there. Probably just something with the co-operation with the regular GPS or something?
I think i got it to run.
I use tt7.910 on diamond with htc 1.93 dutch rom
My mobile provider is mobistar.
I can get a lock inside, tough it's slow(ie not as fast as outside).
When I fire up tt7 the almanac data is showing in the satelite screen.
reg settings are:
Code:
GPRSConnection: Orange World
GpsMode: 4
Network: Orange World
ServerIP: 194.51.71.138
ServerPort: 7275
ServerUrl: agps.orange.fr