GPS is used for both mapping (finding how to get from point A to point B) and perimeter and land surveying.

The thing is, our current GPS that we buy all those, even stand alone receivers, have an accuracy of 5 meters or 3 meters. That means your location might be off by 3-5 meters.

For land surverying, u need almost pin point accuracy. So u need a much much more powerful GPS unit, which is superbly expensive. I dun know about that, since that's more of a profession thing.


However, if u use Qarmin Que with Malsing maps, the program can show u your current speed, distance traveled etc. So that can help a bit. But dun expect it to me 100 percent accurate. i would say about 70-80 percent accuracy only.

Thanks for the info. Reason i'm asking that question beacause I work in plantations sector (oil palm estate). It can be useful if I can use it for perimeter survey.

GPS can provide you coordinate... The rest of the features all depends of software you are using. Since u can plot the route u drive, you could calc the perimeter, area, etc (its all methematically solutions, u can even calc it manually)

Thanks for the info. But first of all I must get the GPS unit. What kind of shop sell this device (h/phone shop, computer accesories shop or other)? Hope when I go back to Semenanjung this coming January, I will able to get one.

yes can calculate, but like i said lor, depends on the sensitivity of your GPS device. How accurate is it. I guess, i can easily lets say u have a GPS PDA, u can start the GPS from one location, then walk to the next location and check how far u've walked/traveled. but again, will prob be like 70-80 percent accurate

see www.lelong.com.my, search key word GPS for GPS receivers.

If u want PDA with built in receiver, one good pda i recommend is Dopod p100. Lowyat selling rm999 i hear, but i dunno where in lowyat.

Check out Eastgear.com, I bought mine there, delivered to my house in 3 days.

cool cool. thread title changed from GPS for pocket pc, to GPS

what brand you guys are using? there is ppl selling holux and podo at lyn.. its about the same price.

As for my unit, the stated accuracy is 7 metres (Non DPGS) and 1m(DGPS)

Chk out at:
http://www.skybees.com.my/webshaper/store/...roductItem=1414

This post has been edited by liewss80: Jan 3 2007, 09:43 PM

Mine is Holux, accuracy usually around 3-5 meters, the important thing is to get SIRF III chip receiver, better sensitivity.

Are this device come with the sofware? or we must buy the sofware saperately (map sofware)

my accuracy Dopod p100 stated 5 meteres.

some people sell product together with map. But most of the time (not all the time la, but i think most) the software is "cracked" or "ahem" version. So not up to date, especially MapKing. Best is use malsing maps. free and up to date

How to get malsing map, and how to install it to PPC

goto www.malsingmaps.com and read the wiki

yeap, as kucau said.

Thankz. ALready install garmen

One question.

How does using a BT GPS affect battery life of a PDA (for example an O2 Atom Exec)? Does it really affect the battery life of the PDA. I mean when using the software for navigation a lot. With all those animations and tracking and BT data transferring, will the battery life of the PDA be really affected?

Thanks.

When u're running BT GPS, it's constantly sending data 2 ur PDA, that drain the battery. If ur pda BT is idle, not transferring, then not much battery is used. That's what i think.

I'm interested to hear from first-hand user experience. But thanks anyway for trying to help out.