QUOTE(PIPSGuy @ Dec 28 2007, 12:21 PM)
What is the different between Assistant GPS & Normal GPS?
What kind of chipset N82 use? Does it SIRF III?
But I found out that it can lock satellite quiet fast (with in 10-15 seconds) with is very good.
How bout the accuracy compare with well know GPS (ie: Gramin).
Thanks.
A-GPS (Assisted GPS) means u are not only using navigation satelite to know where u are, but u are also using Base Stations (transmitter) of ur GSM/UMTS to find your location. there is a fee for using A-GPS because u are transmitting GPRS data to the stations for your triangulations. Where as Normal GPS is FOC even if you use it 24hrs a day.
For the chipset i am not sure myself. Maybe there the same with Nokia LD-4W Wireless GPS Module.
Locking may vary depends where you are. Cold fix may take 1 minute. for your 10-15 seconds it is hot fix. meaning the gps knows from your previous location, what satelite to look for. try a turning it on somewhere far. when u balik kampong maybe...
Accuaracy of GPS in theory now is 10m. However my previous experience with Garmin, if u can get more than 7 sat at a time, u maybe able to go below this. Max sat at a time can be seen in Malaysia is 9 sats will give u accuracy of 1m and below. Have yet to get the oppurtunity to try it with N82.
With the Garmin GPS, there is an averaging function where the longer u stay the more accurate your position is by taking average reading.
QUOTE(Seaedge @ Dec 28 2007, 10:20 AM)
the more details in a picture, the bigger it will be. could i say the compression in N82 caused the differences? I havent test n82 photo yet.
Its not necessarily due to compression. You see, when u take picture, the subject and background is important. The more the colour it has, the more details (lines, shapes, writtings etc etc) it has, the more information is needed to contruct the image i.e. bigger image size. If u take a picture of a single coloured, no lines, no details the size would be smaller. eq. white piece of A4 paper
hope that helps...
This post has been edited by NewKid: Dec 28 2007, 02:30 PM