[Loadstone] Built-in GPS

Cearbhall O Meadhra cearbhall.omeadhra at idd.ie
Thu Nov 22 17:25:30 GMT 2007


Dear Monty,

I would like to purchase a new GPS receiver and would appreciate any
guidance you can give me as to the best model to buy.

Is the Royaltech model still the best one?

Yours sincerely,
 
 
Cearbhall E. O'Meadhra
president, IDD
 
"Good design enables - Bad design disables"
 
Tel: 01-2864623 Mob: 087 9922227 Em: president at idd.ie
 

 

-----Original Message-----
From: loadstone-bounces at loadstone-gps.com
[mailto:loadstone-bounces at loadstone-gps.com] On Behalf Of
monty at loadstone-gps.com
Sent: 25 June 2007 16:43
To: loadstone at loadstone-gps.com
Subject: Re: [Loadstone] Built-in GPS

Hello Cearbhall,

I can't personally comment on the quality of the GPS receivers built in to
some of Nokia's handsets (such as the N95) as I haven't had the pleasure of
getting my hands on one but I have read that the GPS receiver on-board the
N95 is not using the SIRF Star III chipset.  In fact, I have heard rumour
that it uses SIRF Star II.

At the moment Loadstone does not support these on-board GPS receivers though
we hope to include support in the near future.

Best regards,
   Monty


On Mon, 25 Jun 2007, Cearbhall O Meadhra wrote:

> Dear all,
>
> I have been asked about the GPS receivers in the latest Nokia phones.
> Sighted users say that they are good and work well. Has anyone any 
> experience of these phones with Talks and loadstone or any other 
> guidance application?
>
>
> All the best,
>
>
> Cearbhall
>
> "Good design enables - Bad design disables"
>
> Tel: 01-2864623 Mob: 087 9922227 Em: cearbhall.omeadhra at projectidd.ie
>
>
>
>
>  _____
>
> From: loadstone-bounces at loadstone-gps.com
> [mailto:loadstone-bounces at loadstone-gps.com] On Behalf Of Rob Melchers
> Sent: 24 June 2007 18:55
> To: loadstone at loadstone-gps.com
> Subject: Re: [Loadstone] MTK chipset, was Re: royaltek rbt 2110
>
>
> Hallo Jurg,
>
> When using programs like Wayfinder or Trekker this software wants to 
> put you in a street, not on top of a building. If you're put in the 
> wrong street, the faulty reading is as faulty as the distance between 
> the street you are in and the street the software thinks you are in. 
> So, if these streets are seperated by 40 meters, you're off by 40 
> meters, even though your receiver may not be more off than 15 meters. 
> When using Loadstone I do not experience faults bigger than 20 meters 
> in urban canyons and I'm afraid that's what we have to live with using 
> GPS as an orientational tool. In the area I live in (a mix of low and 
> high buildings seperated by open areas) accuracy usually is between 10 
> and 15 meters. In good conditions this can improve to between
> 5 and 10 meters, but that's about it. Again I would like to warn for 
> receivers that use averaging models and 'improvements after 
> reception'. So far these improvements have had no influence on the 
> kind of accuracy we are looking for.
>
> Rob
>
> At 6/24/2007, you wrote:
>
>
> Content-class: urn:content-classes:message
> Content-Type: multipart/alternative;
>        boundary="----_=_NextPart_001_01C7B633.7E17195D"
>
> hi Rob,
> ; In theory, MPR is responsible for a plus minus 3 meters degradation 
> of accuracy is this what you see in practice as well?
> I'd would say accuracy is degradated up to 40 meters in practice.
> I made some testing with another software which announces me in 
> realtime on which street i am.
> Sometimes, on the same street, it gives me a parallel street in about 
> 40 meters, but as this happens not all the time, it cannot be a problem of
map.
> Hence, i'd say it's a problem of reflexions.
> Jürg
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>




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