How to integrate GPS to a portable device?
If I need to make a portable device which you can carry around with you to give the exact location, altitude, climb and descent.
What electronic chips hardware will i need to make a portable GPS system?
Is there a need to make a payment to some company to use GPS?
Answers below in Comments Section
With all the cheap GPS devices around why make your own?
http://cheapgpsdevices.com/
~
No, you don’t need to pay anyone to use the GPS satellite signals
Directions for making your own GPS receiver:
http://www.gpsreview.net/homemade-gps-receiver-make-your-own-gps-receiver/
Of Interest
More