Re: GPS - Can't get a fix
 

So why not use you bt gps with your 810? I use maemo-mapper, its never more than a two minutes to get a signal. I don't use wayfinder though. I am very happy with my 810 and its gps abilities.

Re: GPS - Can't get a fix
 

I did not bring any of my BT gps. Anyhow, if your N810 works, always get a fix in 2 min, I am going to try to return mine. Mine never ever work good, despite all the upgrade and praying.

bun

Re: GPS - Can't get a fix
 

Bluetooth GPS receivers are mentioned a lot but never any specific models. Would anyone care to share the model they had success with?

Re: GPS - Can't get a fix
 

I bought this one from Geeks.com 1 yrs ago for $45 shipped, I did not buy it from this vendor, I just want to show the pic, http://www.gopass.com.tw/Product/GPT...S_receiver.htm. Sizewise, 4 of this equal to 1 N800.

And it just works. From what gathered in this forum, anything with SiRF Star III is good.

bun

Re: GPS - Can't get a fix
 

MTK is good too (even better) but also more expensive.

Just use a _good_ price compare website.

IMO it should allow you to compare which chipset the GPS device uses (in this specific case) as well as the cheapest price available, the S&H costs.

For example, for Netherlands I suggest
http://tweakers.net/pricewatch/cat/6...rderSpecId=454

Normally I like this website for Germany/Austria/EU but in this case it wasn't useful
http://geizhals.at

eBay works also. YMMV! :)

With BT GPS, I get a fix in approx 30 seconds to 2 minutes (Carman, Navicore, and I suppose Maemo Mapper as well). The N810 is a nice device, I like it, but like I said, for me the GPS isn't of much use. A-GPS has little to no influence on my internal GPS performance although I haven't tested how long it takes to get a lock on the BT GPS without A-GPS.

Re: GPS - Can't get a fix
 

Without A-GPS valid data, the n810 reads each satellite ephemeris in secuence, and since the satellite transmits its ephemeris in 30 s, and it looks like n810 won't fix unless it has at least 6 satellites, then the n810 won't fix in less than 3 minutes in the best case.
Most usually, it seems it needs the entire almanac, and that is 12,5 minutes to download in the best case.

Re: GPS - Can't get a fix
 

Definitely it seems your gps is defective. Send it back to warranty repair, they can repair it or even give you a new n810.

Re: GPS - Can't get a fix
 

Good question. Would someone like to start a wiki page on maemo.org to list such things?

I have a BlueNext BN909GR (SirfStar III) which is quick and works well.
I also have one of the Nokia BlueTooth GPSes, though I've not tried it yet
And I have another older one (whose name escapes me, I'll dig it out), which I bought to use with the N800.

Re: GPS - Can't get a fix
 

Wiki page is a good idea. I've spent a lot of time researching the N810's internal GPS operation and continue to update my Maemo Mapper howto with info on getting the internal GPS to work. I'd volunteer to do the Wiki but I'd want to have some practcal experience with a BT GPS receiver before I did that. If somebody has an older functioning device they'd like to sell at a reasonable price that would help me get started. I'm retired and carefully watch what I spend on new toys.

Re: GPS - Can't get a fix
 

All Sirf Star III and MTK work well. If you search through forum you'll see. MTK is better, but also more expensive. If you just verify that the chipset is either one, you can look at the other aspects of each GPS device, and compare the price/performance on different levels (for example, battery life).

Re: GPS - Can't get a fix
 

$26 a piece, when order from UK store, doubt whether you can get anything cheaper than that, http://internettablettalk.com/forums...t=24453&page=2, thread #17 and get a 3 yr licence of Navicore for Europe, just in case you are intresest in Europe visit.

Edit: got an update, that does not work. Need to order from US store, and it may be $44 or $34.


bun

Re: GPS - Can't get a fix
 

I uninstalled it doing the hard reset. The behavior is the same. I noted that after some time searching a gps receiver without success, MM says
Error connecting to GPSD server. Retry?
but I have Settings => GPS set to File Path /dev/pgps
How to fix this if it is the source of problems?
Again, I have no trouble if Wayfinder is launched firstly.
What setting could be wrong or what file is candidate to be corrupted?

Re: GPS - Can't get a fix
 

Control Panel Location settings are obviously correct as Wayfinder works (and uses them), in Maemo Mapper set the connection type to Bluetooth and no MAC number, this will force MM to use the Control Panel settings.

Re: GPS - Can't get a fix
 

Bingo! It works now without the error. Many thanks Lardman.

Re: GPS - Can't get a fix
 

I'd been haveing reasonable performance with the internal GPS until recently when my nvd_data file got corrupted. None of the tricks I wrote about were working -- back to the drawing boards. I did additional experimentation and found some helpful tools which ultimately put me strait. I verified that there clearly is something different about Maps and Maemo Mapper when getting a 1st fix. Strange though, even though Maps got a fix with the corrupted cache, the cache remained corrupted after Maps terminated. I did a rewrite on my GPS lock troubleshooting section.

http://fragostech.com/MaemoMapper/#lockfailure

It suggests installing some addition packages and goes through the process I took in detail to return to a working GPS with Maemo Mapper and a valid nvd_data cache. I'm now back to the 2 to 3 minute time to 1st fix. I'm left with the question -- will nvd_data become corrupted again and did I play a role in that corruption. For the mean time I plan not to terminate Maemo Mapper until after it has a GPS fix. Time will tell.

Re: GPS - Can't get a fix
 

@Fragos: I hate to sound like GA, you mind to forward what you did to the bugzilla bug? I think they would very much appreciate to find something MAY work. For me? I really wish Nokia should start to get serious with this.

bun

Re: GPS - Can't get a fix
 

For reference, I've got a Belkin F8T051 which is stellar -- in the Manhattan canyons, or stuck under a Brooklyn EL -- it locks in just seconds. I got it off e-bay a few years ago; I'd be surprised if I paid as much as $45 for it.

Took me about 3 months to get my first lock on the N810 -- finally, after deleting nvd_data, facing south, under clear sky, and killing a chicken, I got a lock in a few minutes. Just leaning back on my terrace, though is enough to send it hunting again. I used MM to track a bus ride down 14th street - it was comical, looked like a drunken sailor going home. It had me wandering from 15th to 12th streets. Even a walk through Chinatown looks like I've been crossing the street multiple times (when it doesn't have me walking through buildings).

I think the A-GPS is just a placebo to keep us distracted until the warranties run out. It's never done any discernable good for me. I think the GPS chip is just a POC. I'm glad I held on to my Belkin GPS.

The N810 is laughable as a real navigating device -- my wife usually has the foresight to print out a mapquest page so we're not totally hosed.

Re: GPS - Can't get a fix
 

With a 3rd party GPS chip connected via BlueTooth, and either Maemo Mapper + 3G or Navicore I find it pretty acceptible. (Its also neat to use it for OBD statistics as well.)

Re: GPS - Can't get a fix
 

I did what asked. Hopefully it will give the developers additional insight into the problems.

Re: GPS - Can't get a fix
 

Where can I find the agps app?

Re: GPS - Can't get a fix
 

http://catalogue.tableteer.nokia.com...ser/a/agps-ui/

Download the newest version to your tablet.

Re: GPS - Can't get a fix
 

Thanks for the link. Though I got these errors of missing files while trying to install,

libglib2.0
libossod1
supl-daemon

Yeah I know. I gonna find these files now.

Re: GPS - Can't get a fix
 

Perhaps this will help some. Even with Diablo I found Chinook Extras useful.

Re: GPS - Can't get a fix
 

Ok, I give up. I tried to find these files without any luck. Could someone give me a link to where I can get them. Thanks

Re: GPS - Can't get a fix
 

I would think all you needed is in this repository.

[chinook-extras]
name = Chinook Extras
uri = http://repository.maemo.org/extras/
dist = chinook
components = free non-free

Re: GPS - Can't get a fix
 

This site look familiar. I think I was on there yesterday after I followed a link from your website for the agps app and I browse through the whole file tree. I found a supl-deamon that wasn't compable. Sorry, I wish I was better with this stuff but, I am not. These file dependencies make my head spin. As of now, I am going the site, still searching.