Database Users

iGuidance 3 issues

Well, first off let me say I have just upgraded from iGuidance 2 to iGuidance 3. iG 3 is about 8 MB bigger than iG2 and therefore I had to install it on my mini SD card. It works perfectly fine, loads seems to be just as fast (since maps are stored on the mini SD with either program. Anyway, my problem is basically that the program works great, but when the lady comes on telling me when to turn, lets say in 2 miles...it is REEEEAAAALLLY slow and exhagerated. She goes like, Turn.........left..........in........two........miles...... I recently started overclocking my 8125 to 260 MHz to see if it was a speed issue, but no change as far as the sound goes. Any ideas?

turn off your internet connection and you should be OK
DNO

IGuidance 3
Runs fine for me, at stock speed, program and maps on the mini-SD. Maybe it is the overclocking?
- Tim

I have Iguidance 3.0. Now I need the GPS module.
Which GPS module do you all use? What is the best now? Holux, Globalsat? or some other.
Thanks
[email protected]

i use the Rikaline GPS-6033 Bluetooth from buygpsnow.com its $89
picks up 32 sats works indoors and its fast at cold startup locks on to sats
in under 30 seconds i use tomtom and iguidance 3

Re: IGuidance 3
Tim Fountain said:
Runs fine for me, at stock speed, program and maps on the mini-SD. Maybe it is the overclocking?
- Tim
Click to expand...
Click to collapse
I tried it at stock speeds and overclocked speeds, it still did the same thing. I'll try turning off my ActiveSync with my Exchange later today when I'm going on a small road trip and see if that solves the problem.

jschaff said:
I have Iguidance 3.0. Now I need the GPS module.
Which GPS module do you all use? What is the best now? Holux, Globalsat? or some other.
Thanks
[email protected]
Click to expand...
Click to collapse
I use the Holux GPSlim 360 I think it is. The number may be off though. It's uber small and I just throw it in the center console in my car and use it when necessary. Cold start is about 30-45 seconds.

The Rikaline GPS-6033 does not show to be SirfIII. I thought this is the latest technology to get. Is this a more recent technology or is the SirfIII over blown?

I brought this to the attention of iNavcorp, makers of iGuidance, a few weeks ago. This was their reply:
"Our programmers are currently looking into this issue. In the mean time, while turning off the phone will resolve the issue, based on our knowledge, you should be able to simply disable the gprs (wireless data connection) function on your PPC phone which will also resolve the slow voice issue, but this way you will still have phone access."
I had told them that turning off the phone solves the problem. Anyway, they are aware, and I am hopeful that they will fix this in an upcoming patch.
p.s. DNO's answer was right on...

jschaff said:
The Rikaline GPS-6033 does not show to be SirfIII. I thought this is the latest technology to get. Is this a more recent technology or is the SirfIII over blown?
Click to expand...
Click to collapse
SiRFstarIII is amazing. Don't let anyone tell you otherwise.

I use the Holux GPSlim 360 I think it is. The number may be off though. It's uber small and I just throw it in the center console in my car and use it when necessary. Cold start is about 30-45 seconds.
Click to expand...
Click to collapse
It is the GPSlim 236 and it is a great unit! I love mine.

The voice on mine works great, I could not get it to instal to the SD, I had to install the CAB there, and then run that to install the actual program to the phone. My problem is that the maps haven't been updated with streets that have been made in the last few years, and the shopping POIs arn't that great.
I have a Houlix 268 slim (I Think thats the model), and it randomly loses connection, so I have to power-cycle it and restart IG3, for it to regain connection.
Also every once and a while it does a wierd click sound when I'm slowing down.

mm_thor said:
I brought this to the attention of iNavcorp, makers of iGuidance, a few weeks ago. This was their reply:
"Our programmers are currently looking into this issue. In the mean time, while turning off the phone will resolve the issue, based on our knowledge, you should be able to simply disable the gprs (wireless data connection) function on your PPC phone which will also resolve the slow voice issue, but this way you will still have phone access."
I had told them that turning off the phone solves the problem. Anyway, they are aware, and I am hopeful that they will fix this in an upcoming patch.
p.s. DNO's answer was right on...
Click to expand...
Click to collapse
I did notice this was the issue this weekend. Is there a "quick" way to disable GPRS? I guess i'll keep an eye on iNavcorps website.

Turn it off from the comm manager. Mine works fine while I am using BT for my headset and on the phone talking.

Do iGuidance do maps for Europe? THey seem to have discontinued their european product; if I can get the europe map from v.2.12 will it work with v.3.0?
Cheers.

GPS settings

What GPS settings do I have to use to get TomTom 6 or Route66 working?
Thanks in advance,
Peter
(T-Mobile Ameo)

pgerr said:
What GPS settings do I have to use to get TomTom 6 or Route66 working?
Thanks in advance,
Peter
(T-Mobile Ameo)
Click to expand...
Click to collapse
set it to COM 5, and set to other bluetooth device.

gps is fast?
whichever minutes in having the first signal?
thank you.

hx4700spain said:
gps is fast?
whichever minutes in having the first signal?
thank you.
Click to expand...
Click to collapse
i am going out to test the GPS now, will post later

please
gps is fast?
whichever minutes in having the first signal?
thank you.

hx4700spain said:
please
gps is fast?
whichever minutes in having the first signal?
thank you.
Click to expand...
Click to collapse
3 mins on the first signal setup

ok thank you.
this is with tomtom or igo ?

hx4700spain said:
ok thank you.
this is with tomtom or igo ?
Click to expand...
Click to collapse
this is with TomTom

in cold it takes three minutes?
but in hot?

hx4700spain said:
in cold it takes three minutes?
but in hot?
Click to expand...
Click to collapse
That was in hot by the way, didn't try cold, should be quicker than 3 mins

in hot it is less time not than in cold that gps needs but time to find satellite for the first time not?

hx4700spain said:
in hot it is less time not than in cold that gps needs but time to find satellite for the first time not?
Click to expand...
Click to collapse
sorry, when you say cold and hot, what do you mean?

in cold it means that it is the first time that takes satellite after a soft reset and in hot second or third time that takes satellite. how long in cold and hot?
thank you.

hx4700spain said:
in cold it means that it is the first time that takes satellite after a soft reset and in hot second or third time that takes satellite. how long in cold and hot?
thank you.
Click to expand...
Click to collapse
oh, ok, so first time is about 3 mins, after is about 2 mins, but i must say i only tested once. And i can't test anymore now because my mini-sd is broken!!!! Can not format it in anyway, so until my new-mini sd comes, i won't be able to use TomTom, will let you guys know when i have more info.
Anyway, i also need to say, from the test i did, the signal doesn't seems very stable, it keep dropping out and reconnect it again....

time
i use totom 6.030 and I-go 2006 with update from jan 2007
in max 1-2 min location is fixed...
i install ALL cards on microdrive NOT in sd card
i have internal with this microsoft gps programm port 4 routed to port5 ..
regards

I have iGo 2006 without 2007 updates. In cold start it takes a lot of time, abt 2 min on Ameo. In my opinion, more then with HTC Tytn or Asus P525. I didn't measure it with a watch. And also because the GPS antenna is internal in Ameo it looks like the signal is less stable then when you have a GPS device connected to a phone via bluetooth.

Buch070 said:
I have iGo 2006 without 2007 updates. In cold start it takes a lot of time, abt 2 min on Ameo. In my opinion, more then with HTC Tytn or Asus P525. I didn't measure it with a watch. And also because the GPS antenna is internal in Ameo it looks like the signal is less stable then when you have a GPS device connected to a phone via bluetooth.
Click to expand...
Click to collapse
I tend to agree with you...I'm using Advantage with iGo2007 and have the same feeling...the internal GPS is not quite stable and it's dramatically worse than used with Trinity. When I'm in desperate need for current location I prefer to use an external BT GPS than Athena's internal one.
It seems that it does not react properly, since the connetion seems to be OK.

Just a side note: the GPS receiver seems to be placed on the side bearing the HTC logo, not on the side with the Opera hardware button... I tried to use Tomtom in my car with the PDA upright (joystick at the bottom) and it didn't manage to get a fix... When I turn the PDA in landscape mode, with the HTC logo on the top, it works a lot better (cold fix in the car after 1 or two minutes).

zoharbl said:
I tend to agree with you...I'm using Advantage with iGo2007 and have the same feeling...the internal GPS is not quite stable and it's dramatically worse than used with Trinity. When I'm in desperate need for current location I prefer to use an external BT GPS than Athena's internal one.
It seems that it does not react properly, since the connetion seems to be OK.
Click to expand...
Click to collapse
I don't find this. I have a TomTom mkII bluetooth as well as the Ameo. I find that the Ameo is often quicker to get a fix. TomTOm navigator 6 I find the slowest. friends tell me that Igo (with the 2007 maps) is much quicker at getting a fix.

apd said:
I don't find this. I have a TomTom mkII bluetooth as well as the Ameo. I find that the Ameo is often quicker to get a fix. TomTOm navigator 6 I find the slowest. friends tell me that Igo (with the 2007 maps) is much quicker at getting a fix.
Click to expand...
Click to collapse
I find this hard to believe: I think the fix is made (or not) by the GPS chip itself, which gives the current position to the nav software every second. The time to fix should not depend on the software.

shift GPS

hi all
is it true the shift's GPS is blocked ?
can someone confirm ?
if so, what can be done to use TOMTOM on it ?
please advise
Thanks

Not blocked, just not there.

that blows ....
i was about to order one...
oh well, i guess ill just stick to my advantage x7500...
thanks.

By the way I'm using TomTom on my universal but I'm not comfortable to use TOMTOM. I have to enter specific information to use search function, even doesn't have that much result even I paid.
and Tomtom can't navigate to extra number of address like 85-89156 ****HWY.
only can navigate 85 ****hwy. and I Think tomtom's brain doesn't work well when it calculate the root.
I Have navtech for my ipaq, that's works so great. On the shift, even I have to buy a external battery pack or maybe SSD to extend battery life, I'm going to use navigation by microsoft on Vista for best result. cuz I'm use navigation for my job!
If before u buy tomtom, u should buy other one...

http://es.youtube.com/watch?v=wOesPtnXP9o
Shift has a qualcomm 7200 inside and this is the same chip used by kaiser. This chip has gps inside, as you can see in documentation or in video. Once we can put wm6 full on it we wiil be able to install any navigator and make use ot if....

If the antenna is installed, that is....

I believe if you look at the exposed internal photos of the Shift on the FCC website, they clearly define a GPS antenna. I don't know that it means that it has GPS for sure but it points to that direction.

danielherrero said:
http://es.youtube.com/watch?v=wOesPtnXP9o
Shift has a qualcomm 7200 inside and this is the same chip used by kaiser. This chip has gps inside, as you can see in documentation or in video. Once we can put wm6 full on it we wiil be able to install any navigator and make use ot if....
Click to expand...
Click to collapse
I was under the impression the qualcom didnt make it to the final production model and that the Shift just has the one processor?

firedup said:
I was under the impression the qualcom didnt make it to the final production model and that the Shift just has the one processor?
Click to expand...
Click to collapse
totally wrong impression
it has a full MSM7xxx inside

cmonex said:
totally wrong impression
it has a full MSM7xxx inside
Click to expand...
Click to collapse
I cant see it mentioned in my documentation or on any of the UK websites selling it. Is this a deliberate omission to leave out the 2nd processor details?!? I've heard of them leaving out GPS functionality but the whole processor?

also had gps tools in the old test roms

firedup said:
I cant see it mentioned in my documentation or on any of the UK websites selling it. Is this a deliberate omission to leave out the 2nd processor details?!? I've heard of them leaving out GPS functionality but the whole processor?
Click to expand...
Click to collapse
the ARM9 processor is just for the radio.
the ARM11 is the applications processor, i.e. for running WM and apps.
it's not dualcore in the sense an intel core 2 duo is.
edit: sorry i see now you meant the whole MSM is not mentioned. well that's easy to explain why... the WM6 side is supposed to be just a sideshow, so why mention the hardware specs for it.
it also has its own RAM, etc. etc.
if you heard of the dualcor prototype, well the HTC shift is like that. two full devices in one!

Anyone noticed there is a GPS section on the FAQ part of the HTC Shift site?
http://www.htc.com/www/Faq_detail.aspx?p_id=60&act=faq&cat=266

re
yea i noticed that too.... what gives? if theres gps in here why the hell don't they let us use it!! I love HTC but i hate the fact that the always "disable" key hardware or features, If you don't want the device to have it, don't tease us by putting it in the first place!!

datacrime said:
yea i noticed that too.... what gives? if theres gps in here why the hell don't they let us use it!! I love HTC but i hate the fact that the always "disable" key hardware or features, If you don't want the device to have it, don't tease us by putting it in the first place!!
Click to expand...
Click to collapse
Well... Maybe they leave this GPS option open incase something cookes his own rom and then the GPS function is enabled.
HTC will then have the option to release a rom with GPS otherwise no one wants to use their original rom!

here some info.....http://www.pringle.net.nz/blog/PermaLink,guid,46fcc9e9-26e8-4c40-b262-58a5366cb587.aspx
so let's investigate.....

re
expansys shows two versions of the shift, one with gps and one without. I think that htc is planning to release a gps version too, which will probably cost more too

I figured it couldn't hurt try a couple things after reading all the posts in this thread.
This what I tried so far.
I installed google maps for WM6
I copied over Telenav folder from my X7501
I copied the following files from the Windows directory on my X7501 to the Window dir. on my Shift.
TeleNavPlug.dll
GPSAux.dll.0409.mui
GPSAux.dll
After resetting I now have
Under Settings > system the External GPS appplication.
Telenav that starts up and seem to work but cannot find the GPS
Google maps tht works but cannot find the GPS.
I tried abunch of combinations of com port, access setting, etc in the External GPS application. I tried all the ones that worked on my X7501 and few other that didn't but no luck.
When I changed the access setting in the external GPS application it dose change the messages I am getting from google maps. Google maps seems to think there is GPS there but never gets any sat locks or times out trying to initialize the GPS (depends on the settings). I am using the shift in the same place my X7501 gets several sat locks.
Dose anyone else have any ideas I can try or know of any file I missed?
I know should probably wait for people smarter than I am to work on this but I figured I would give it a try...

Touch HD same GPS lag as Touch Pro?

Just wondering if the Touch HD will get the same laging GPS receiver the Touch Pro and Diamond got? I sure hope not. Its the only thing that dissapoints me with my Touch Pro.

utvol06 said:
Just wondering if the Touch HD will get the same laging GPS receiver the Touch Pro and Diamond got? I sure hope not. Its the only thing that dissapoints me with my Touch Pro.
Click to expand...
Click to collapse
It's not an issue of hardware, but software. That's like asking if it will have the same laggy TouchFlo3D because of its processor... It's just the software. My Fuze didn't have any of the complaints of slow TF3D or GPS lag, but it had the same GPS receiver as the European Touch Pro.

Black93300ZX said:
It's not an issue of hardware, but software. That's like asking if it will have the same laggy TouchFlo3D because of its processor... It's just the software. My Fuze didn't have any of the complaints of slow TF3D or GPS lag, but it had the same GPS receiver as the European Touch Pro.
Click to expand...
Click to collapse
I think the cause is the hardware, because some people tried with an external gps antenna, sirf3, and no lag at all. And changing software doesn't eliminate the lag. I use iGo and TT and the lag is always there...

onesolo said:
I think the cause is the hardware, because some people tried with an external gps antenna, sirf3, and no lag at all. And changing software doesn't eliminate the lag. I use iGo and TT and the lag is always there...
Click to expand...
Click to collapse
Hopefully HTC will be able to fix the GPS Lag in the diamond and Pro with a rom update...they are supposed to be working on it. I just hope the Touch HD wont share the same lag problem and that HTC sees that it doesn't before release.

Isn't the difference between the built-in GPS and an external GPS antenna the method? The built-in GPS is (AGPS) and an GPS antenna uses "normal" GPS....

No, that's not it.
Assisted GPS is something extra for a normal GPS system, not a different system. A basic GPS system will have to download the satellites' position each time it cold-starts, and that will take time. An A-GPS system will have an additional way to download the current position of all GPS satellites, in order to speed up the process, by knowing the position of your phone in a GSM network or by downloading an updated file containing the satellites' current position, through a data network (wifi or 3g). That's why the "gps assistance" files you download through this kind of assistance application (in HTC's case, it's called "Quick GPS") are only valid for 2-3 days: in 2-3 days, they expire and the satellites' positions aren't valid anymore.
All GPS systems must have an antenna of some kind, either internal or external. Mostly all PDAs with integrated GPS have an internal antenna, which does the job in most conditions, but it's not perfect. I used an external antenna for car navigation, and in most situations I went from 4-5 detected satellites (with so-so signal) to 7-8 with full signal, only by having an antenna on the roof of my car. However, this shouldn't influence by all means the GPS lag, only the precision of GPS positioning on the map (coordinates).

That's not it either.
Quick GPS downloads a file prior to GPS initiation. When started the GPS works off-line.
A-GPS is a hybrid technology that auguments the GSM satellite signal with GSM signal on-line.
You can use Quick GPS without A-GPS, which is the case of most users today, for compatibility reasons.
As for the previous question regarding GPS lag, here are two points (depending on what you understand by GPS lag):
1. the GPS chipset has a built-in refresh rate, which should be something like 0.5 seconds. This is the same for all devices sharing the same chipset.
2. when saying that the GPS performance depends on software, it does not mean IGO or TomTom, it means the Radio drivers. Newer Radio versions come up from time to time and may improve GSM / GPS signal strength or battery life, and in the very best cases both.
Follow the ROM Development threads for more info.

dani31 said:
That's not it either.
A-GPS is a hybrid technology that auguments the GSM satellite signal with GSM signal on-line.
You can use Quick GPS without A-GPS, which is the case of most users today, for compatibility reasons.
Click to expand...
Click to collapse
Not to be a GPS-nazi but A-GPS doesn't necessarily imply the usage of a GSM network, but the usage of an assistance server. From Assisted GPS page on Wikipedia:
A typical A-GPS-enabled cell phone will use an internet connection to contact the assistance server. Alternatively, it may use standard non-assisted GPS, which is slower and less accurate, but does not lead to network charges for data traffic, which can be considerable.
Click to expand...
Click to collapse
So, it can be done either through GSM networks, or through a data connection; therefore, the Quick GPS app is simply another form of A-GPS.
dani31 said:
1. the GPS chipset has a built-in refresh rate, which should be something like 0.5 seconds. This is the same for all devices sharing the same chipset.
Click to expand...
Click to collapse
That I don't think would be visible to the end user. According to the NMEA/SiRF specs, the min refresh rate would be 1 Hz (one time per second), but the average among devices seems to be around 5 times a second, once every 200 miliseconds (5 Hz refresh). The GPS chip should do that without a problem (according to the manufacturer's specs), therefore the problem must be somewhere after the GPS data is sent to the device; either in communication to the CPU, either in the navi software. My 2 cents. We'll see.

Review from SlashGear
HTC Touch HD's review by SlashGear talks about the GPS lag..
this is the part about GPS performance of the Device:
"The HTC Touch Diamond has been criticised for its GPS performance, which can lag behind actual position when moving at speed. Hopes were high for the Touch HD to avoid such a fate, but unfortunately that doesn’t appear to be the case. Whether from the processor (the same 528MHz Qualcomm MSM7201A as in the Diamond) or the GPS receiver itself, when driving the indicated position is always 50-80ft behind. This makes navigating via the on-screen directions incredibly difficult. At lower speeds, such as when walking, the Touch HD has no problems, just like the Diamond. We’re still attempting to get hold of some alternative GPS programs, such as TomTom or Garmin Mobile XT, and will update this review when we’ve had an opportunity to try them out."
has anyone else bought the Touch HD yet who can confirm this?
i just hope the GPS lag isn't as bad as the HTC Touch Diamond/Touch Pro as i'm going to order one pretty soon.

For the sake of millions of readers and potential touch HD buyers like me,can someone who already own a touch HD,please be kind enough,do an experiment about this gps lag issue and give an absolute answer to this issue.Gps lag is very noticeble when you are navigating at high speed(eg:80-100km/h) or when doing multiple rapid turns(eg:driving on back alleys).at low speed(slow drive or walking),no lag is apparent.Currently i'm using ipaq 612c where it has this lag issue and its most noticeble when using Garmin XT.When using mapking or tom tom it is not that bad..Really waiting for all your answers.
Thanks in advance for all your help

iznee said:
For the sake of millions of readers and potential touch HD buyers like me,can someone who already own a touch HD,please be kind enough,do an experiment about this gps lag issue and give an absolute answer to this issue.Gps lag is very noticeble when you are navigating at high speed(eg:80-100km/h) or when doing multiple rapid turns(eg:driving on back alleys).at low speed(slow drive or walking),no lag is apparent.Currently i'm using ipaq 612c where it has this lag issue and its most noticeble when using Garmin XT.When using mapking or tom tom it is not that bad..Really waiting for all your answers.
Thanks in advance for all your help
Click to expand...
Click to collapse
Ok, I have performed an experiment. Hopefully it will help you and "millions" of readers to decide if GPS lag is a problem or not on this device.
Test setup:
PDA 1: Mitac Mio A701, GPS chip: SIRF III, navigation software: IGO8
PDA 2: HTC Touch HD, GPS chip: Qualcomm, navigation software: IGO8
Experiment:
I start IGO8 on both devices and select the same destination. They both pick up GPS signal and the show starts..
Result:
PDA 1: depending on your speed, there is a GPS lag. This is between 0-2 seconds. In distance I would say about 20 to 50 meters. Again, all depending on your speed. When you stop (which unfortunatelly happens a lot in the netherlands due to high traffic ) the GPS gives the right position.
PDA 2: see PDA 1. There is practically no difference. Sometimes PDA 1 is more ahead, sometimes PDA 2 wins. The voice commands start virtually at the same time "take a turn left", "leave the highway" and so on. Maybe PDA 2 is a bit faster (less GPS lag) since I heard the voice like a 10th of a second earlier than on PDA 1.
Conclusion:
GPS lag is a problem that practically all "cheap" GPS devices have, specially in a moving vehicle. Since your GPS data is refreshed every second, you would be one second off every time. Moving at 100km/h, that means an offset of 27 meters. Moving at 150km/h that is about 41 meters (and yes, I know I should not drive that fast in the netherlands ). Add to that the GPS errors and you will get an impression on how hard it can be to predict where you will be in a second.
You could then say that the navigational software should take that into account and predict where it would be, but that also has a negative side. Have you noticed what happens when you do not follow the course laid ahead by the navigational software? it stays on course for a couple of seconds and then it notices you actually turned left or right, thus the direction should change.
The more aggresive the prediction is, the more you will have a problem when deviating. The less prediction, the more GPS lag you will have.
Is this a problem while driving? I have never considered it a problem. On the highway you do not decide to take a turn within 50 meters (I hope ). In the city, you should have way less problems with GPS lag...
Last, for all the "millions" of readers, please read these two articles:
Article 1, an abstract about navigational state estimator
Article 2, a forum discussing this very problem in the i-Blue receiver. Pay special attention to the answers given by JakeRich
I hope this helps you all out...

David,
I am so very pleased you had these two devices with the software mentioned.
It just so happens that I too have a Mio A701 with iGo and my next purchase will be the Touch HD.
Your test served as a good starting block for me to build upon.
I did wonder how well the Touch HD would fare against my A701.
Many thanks.
Beards

Thanks for your test. What about TMC info with iGo8 ?

gergy said:
Thanks for your test. What about TMC info with iGo8 ?
Click to expand...
Click to collapse
The device finds the TMC receiver (using 8.0.x version, 8.3.x version does not find anything) but then it does not find a channel. This would need a TMC expert to work out...maybe you need to change something in the sys.txt file of IGO8

Something I would add is that until last week I was using a SirfStarIII equipped BT GPS receiver linked to my Hermes and running TTN 6.03, now I'm using the Touch HD internal GPS and TTN 7.45. I have found that the GPS signal appears to be significantly weaker on the Touch TD. However, it does have the capability to pick up more satellites it seems.
In my standard journey between home and work the BT GPS receiver never picked up more than 8 satellites but never picked up less than 4 and spent most time tracking 5-6. The Touch HD at times picks up 10, maybe even 11(!), satellites but often drops to 2 and spends most time tracking 3-5.

Impression
I'm using Tomtom 7,451 now on my HD.
I tried it with the internal GPs and even with an external bleutoth GPS receiver from Tomtom itself.
The so called lag is the same in both cases.It is caused by the slow refreshing rate ( almost 1 second ).That is not a major problem and is the same that I experienced already with the Polaris,Cruise and Diamond.
So when driving try to think at least 1 second ahead.
When you're not moving I got a pefect lock on my position with Tomtom but with Googlemaps i'm of by almost 150 meter to the East.
So that's software I think.

BerreZ said:
I'm using Tomtom 7,451 now on my HD.
I tried it with the internal GPs and even with an external bleutoth GPS receiver from Tomtom itself.
The so called lag is the same in both cases.It is caused by the slow refreshing rate ( almost 1 second ).That is not a major problem and is the same that I experienced already with the Polaris,Cruise and Diamond.
So when driving try to think at least 1 second ahead.
When you're not moving I got a pefect lock on my position with Tomtom but with Googlemaps i'm of by almost 150 meter to the East.
So that's software I think.
Click to expand...
Click to collapse
I get my touch hd today. looks like I wont be installing Google maps at all on it. I'm going to buy Co-Pilot 7 when I get the chance. I also like Windows Live search GPS app, but it may lag like google.

utvol06 said:
I get my touch hd today. looks like I wont be installing Google maps at all on it. I'm going to buy Co-Pilot 7 when I get the chance. I also like Windows Live search GPS app, but it may lag like google.
Click to expand...
Click to collapse
Google maps is already preinstalled, at least on my Touch HD it was (Netherlands)

last word on gpslag?
Hi to All,
Personally, i start realizing the limitation of forums in producing real information.
First of all, most "commercial" and consumer GPS update their position every second, as correctly pointed out in this forum. Said this, faster position updates are possible for professional devices, see
http://www.dsprelated.com/showmessage/22833/1.php
but we can probably forget about it for the time being.
so, don't be surprised if - driving at 100 km per hour alias 30 m/s - you will miss the exit by 30 meters. Be reassured: Felipe Massa will miss the box by 100m if he would drive by looking to the GPS - and your braking distance was anyway 60 m....aaaghh....i hope i will never meet any of you while making the test.
My firm and conclusive opinion after extensive evaluation with Igo and Tomtom and gwatch:
The GPS LAG on the touch HD is a metropolitan legend invented by i-members!
If you check on igo8, there is a small dot representing the actual position, and the arrow or the car is the position compute by software interpolation/filtering etc. Everybody can notice that the dot moves instantaneously. It is a matter of software to decide how to filter this data, and how "reactive" you want the position change to happen. On top of this, it is obvious that updating a VGA or WVGA screen will be heavier than updating a small screen, so there should be a lag which is dependent on the navigation software you use and on the load on your telephone.
However, there is definitely no lag on tomtom....the problem is: how to buy version 7?

Here is video comparison omnia vs hd
It seems to me there is little lag on hd.
Colud somebody translate it?
http://www.youtube.com/watch?v=v45--rkRgjk

GPS (Touch Pro) vs GPS (Xperia)

Do somebody know if there is any difference (in practical terms) in GPS implementation in both devices.
I've heard (unconfirmed) that Xperia could not use its GPS module without access to gsm network (it is capable only of aGPS) while Touch Pro could do both (aGPS as well as stand alone GPS).
Please let us know.
Thanx.

I haven't tested neither of them so I can't tell you about that, but what I can say is that the rumour you´ve heard (about only accessed to gsm network) is NOT true. aGPS is just like an ordinary GPS but with the assistance of the "a" (the gsm network) when and if available.

GPS
It makes sense. Thank you.

The Xperia has both network assisted gps and regular gps

the gps is in the qualcomm cpu same brand on both devices as i'm not wrong

Since both Pro and X1 use the same chipset for GPS, has anyone, who owned both, noticed any differences(or similarities) in the performance of X1?

Did someone test the fomous GPS lag issue in X1?

I have had a very positive experience with the xperia's gps.Outdoors (inside cars ofc) I can get a fresh gps fix within second. Indoors I usually get it in less than 2min but that prob depends on the building
cheers

Hi.
But what about the GPS lag issue of touch pro and Diamond?, you know, when you move (by car) and you stop then the arrow reaches you after some seconds (instead of stop in the moment), this is, the arrow is always 20m-60m behind you.

I can confirm that there is about one second of lag with the GPS while driving with a constant speed of ~80 km/h. Tested with the latest TomTom. This equates to about 20 m. I have yet to see a GPS receiver that doesnt have any lag though...

Thanks. Thats what I wanted to know

danielherrero said:
Thanks. Thats what I wanted to know
Click to expand...
Click to collapse
But have you seen any GPS that DOESN'T lag?
I am curious because the few I have seen, internal and external do lag also. I figure GPS by its nature HAS to lag, its the time it takes to get a signal off several satellites and triangulate your position from them.

Hi Alex.
Take a look to the diamod,s forum and touch pro forum and you will see what I am talking about. There are hundred of forum pages talking about it (in xda). I ve used gps devices since 10 years ago. With my latest devices (kaise, cruise) there wasnt that issue. But GPS lag in diamond make very hard to drive in a city. When theorically diamond shows you re in a cross really you are 50 meters passed and I loose many turns. Many people, me included, ve contacted with htc to report the issue and they say their people is trying to fix the problem.
Dani

Ah so "Its lag Jim but not as we know it!".
Fair enough, I hope the X1 doesn't suffer then but I have an external GPS for my Wizard anyway if it did.

hehe,
I ve an external gps bt too but I want to use the internal one. I am very sad about the diamond gps lag problem and I am going to sell it and buy a x1 if, and only if, gps lag isnt a problem with x1
ps: GPS performance is very important to me, did you notice it?

danielherrero said:
hehe,
I ve an external gps bt too but I want to use the internal one. I am very sad about the diamond gps lag problem and I am going to sell it and buy a x1 if, and only if, gps lag isnt a problem with x1
ps: GPS performance is very important to me, did you notice it?
Click to expand...
Click to collapse
Of course, you're batman after all
Can't have you running into walls with the batmobile.

Well at least if you run into walls with the batmobile, the car isn't harmed.
Besides, if you followed GPS literally you would be driving on the sidewalk and through trees - at least according to Google Maps anyway.
That last few couple of meters of inaccuracy can be a real pain

Exactly!!. My bat-car hasnt windows to protect me against guns and rockets so I need to rely in the gps at 100%

By the way what gps software do you think is best for the Xperia ?

Alex Atkin UK said:
Well at least if you run into walls with the batmobile, the car isn't harmed.
Besides, if you followed GPS literally you would be driving on the sidewalk and through trees - at least according to Google Maps anyway.
That last few couple of meters of inaccuracy can be a real pain
Click to expand...
Click to collapse
Well, at least you have an excuse!
"Officer, the GPS told me so, fine it! No, i'm not drunk. What's with the taser..."