GPS game

Finally, after a month saving, I have enough 60$ for small device GPS receiver.
After 3 times tracking, at workplace( near Phú Nhuận Dis), at school (Open University), and my home.
Sadly, only 1 place is correct is at my home. (+_+)
The condition to measure is at outdoor, at 11'33 PM, satellite time is 16.33.58
not bad, the bias is 20 meter away from my home.
Next step is using real data and create some mashups with Google Map. ( aha, old invention (~_~)


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