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> GPS (general: wat is it? how does it work?), Get your answers here!

Baronic
post Dec 30 2006, 11:51 AM


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QUOTE(Deani_77 @ Dec 30 2006, 10:11 AM)
Anyone have the answer?
*



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.
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Deani_77
post Dec 30 2006, 12:20 PM


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QUOTE(Baronic @ Dec 30 2006, 11:51 AM)
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.
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liewss80
post Dec 30 2006, 12:41 PM


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QUOTE(Deani_77 @ Dec 30 2006, 12:20 PM)
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)
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Deani_77
post Dec 30 2006, 12:49 PM


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QUOTE(liewss80 @ Dec 30 2006, 12:41 PM)
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.
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Baronic
post Dec 30 2006, 12:51 PM


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QUOTE(liewss80 @ Dec 30 2006, 12:41 PM)
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)
*



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
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Baronic
post Dec 30 2006, 12:53 PM


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QUOTE(Deani_77 @ Dec 30 2006, 12:49 PM)
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.
*




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.
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civic98
post Dec 30 2006, 03:13 PM


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Check out Eastgear.com, I bought mine there, delivered to my house in 3 days.
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Baronic
post Dec 31 2006, 01:20 PM


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cool cool. thread title changed from GPS for pocket pc, to GPS
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kuokyeow
post Dec 31 2006, 11:52 PM


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what brand you guys are using? there is ppl selling holux and podo at lyn.. its about the same price.
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liewss80
post Dec 31 2006, 11:56 PM


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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
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civic98
post Jan 1 2007, 12:28 AM


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Mine is Holux, accuracy usually around 3-5 meters, the important thing is to get SIRF III chip receiver, better sensitivity.
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Deani_77
post Jan 1 2007, 11:31 AM


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Are this device come with the sofware? or we must buy the sofware saperately (map sofware)
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Baronic
post Jan 1 2007, 11:55 AM


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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
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Deani_77
post Jan 1 2007, 12:41 PM


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QUOTE(Baronic @ Jan 1 2007, 11:55 AM)
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
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kucau
post Jan 1 2007, 12:50 PM


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QUOTE(Deani_77 @ Jan 1 2007, 12:41 PM)
How to get malsing map, and how to install it to PPC
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goto www.malsingmaps.com and read the wiki
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Baronic
post Jan 1 2007, 04:02 PM


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yeap, as kucau said.
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Deani_77
post Jan 2 2007, 02:24 PM


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QUOTE(kucau @ Jan 1 2007, 12:50 PM)
goto www.malsingmaps.com and read the wiki
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Thankz. ALready install garmen
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sniper msia
post Jan 2 2007, 11:02 PM


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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.
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H4RRY
post Jan 2 2007, 11:31 PM


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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.
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sniper msia
post Jan 2 2007, 11:32 PM


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QUOTE(H4RRY @ Jan 2 2007, 11:31 PM)
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.
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