How GPS Phones Work

by Tracy V. Wilson

Browse the article How GPS Phones Work

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GPS DEVICES

eTrex Summit HC

The eTrex Summit HC is Garmin's latest, pocket-sized GPS navigator with a barometric altimeter that pinpoints your precise altitude, and its built-in ...

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Garmin Foretrex 101 Wrist-Mounted GPS Navigator

GPS accuracy: 15 meters or less in normal GPS mode, 3 meters or less when WAAS-enabled Trip computer: Trip distance, trip timer, plus other non-mappin...

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$99.49

Garmin GPSMAP 492 Color Chart Plotter

5" color TFT display, Marine maps, Current and tide data, Alert system, GA29 remote or built-in GPS antenna, Bail mount...

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$709.99