[access-uk] Re: GPS on N82?

  • From: "Ibrahim Gucukoglu" <ibrahim_gucukoglu@xxxxxxxx>
  • To: <access-uk@xxxxxxxxxxxxx>
  • Date: Sun, 15 Mar 2009 12:00:54 -0000

Hi Chris.
No problem, we all have questions from time to time *smile*. Basically, assisted gps is a software based gps system. It uses a landmarks database, these usually telecoms masts and other transmitting and ground stations to triangulate your position. When you move around, the receiver calculates your distance from different landmarks in the landmarks database and provides a rough estimate of your position. If you have not got sufficient satellite gps coverage or you are in an area with a poor obstructed view of the sky, AGPS acts as a reasonably reliable backup as it does not require access to satellites, thus you can maintain a constant if estimated gps positional lock. 

I hope this answers your question.
----- Original Message ----- From: "Chris Hallsworth" <christopherh40@xxxxxxxxxxxxxx> 
To: <access-uk@xxxxxxxxxxxxx>
Sent: Sunday, March 15, 2009 8:46 AM
Subject: [access-uk] Re: GPS on N82?



What's assisted GPS? Sorry for my ignorance.

--
Chris Hallsworth
e-mail: christopherh40@xxxxxxxxxxxxxx
MSN: ch9675@xxxxxxxxxxx
Skype: chrishallsworth7266
----- Original Message ----- From: "Ibrahim Gucukoglu" <ibrahim_gucukoglu@xxxxxxxx> 
To: <access-uk@xxxxxxxxxxxxx>
Sent: Saturday, March 14, 2009 8:32 PM
Subject: [access-uk] Re: GPS on N82?


Hi James.

Go external mate.  For one thing, you'll drain battery power faster if you
use the internal gps, and you can get much better overall performance with a dedicated gps receiver. At the moment, Talknav are doing the G66 Plus which 
has both gps and assisted gps, effectively guaranteeing you gps coverage
because if it can't get a satellite fix, you'll have the benefit of assisted 
gps triangulation which is accurate to within about 10 metres or so.

All the best, Ibrahim.
----- Original Message ----- From: "James Scholes" <james@xxxxxxxxxxxxx> 
To: <access-uk@xxxxxxxxxxxxx>
Sent: Saturday, March 14, 2009 8:28 PM
Subject: [access-uk] GPS on N82?



Hi all,

Would people recommend that I use the built-in GPS on the N82 or an
external receiver? I ask because I've heard mixed reports.

James Scholes
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