(A Marine GPS Receiver used for boats; $600)
Marine GPS receivers range in price from $500 to $1000
(A Handheld GPS Receiver; $900)
Handheld GPS receivers range in price from $100 to $1000
GPS receivers can be purchased at sites such as:
For detailed information on GPS systems visit sites such as:
The Department of Geography at the University of Texas
The Department of Geography at the University of Colorado