eBay Auctions - Name your price! $175.00 3.5" GPS navigation system + Australia MAP mp3 mp4 NEW $430.00 GPS Real Time Personal Tracking Kit+Software SMS+GPRS $56.00 Navman GPS Sleeve (GPS 3420) for Ipaq $34.99 New Holux M1000 Bluetooth GPS Receiver 32 CH Sat Nav $360.00 Suunto X9Mi (X9i Military) GPS Computer Watch - NEW $2.49 Sandisk 2GB 2 G GB SD CARD Camera DV GPS Memory New $24.99 Bluetooth GPS Receiver For PDA Nokia MOTO Mobile phone $75.99 New Holux M241 Bluetooth GPS Receiver + Data Logger $0.01 USB to RS232 Serial DB9 9 Pin Cable Adapter PC/Mac/GPS $4.99 NEW CAR WINDSHIELD MOUNT HOLDER FOR PHONE PDA PSP GPS $250.99 Garmin Forerunner 305 GPS Watch with Heart Rate Monitor $19.95 NAVMAN GPS Speed & Red light camera data for Australia $72.99 Holux M241 USB/ Bluetooth GPS Receiver + Data Logger $99.99 New 3.5"GPS AU+US MAP SAT NAV MP4/MP3 Free Gift E610 03 $159.99 Bug GPS Car Tracking vehicle spy auto tracker device $431.26 Brand New Nokia N95-3 SILVER GPS 5MP UNLOCK GPS $41.01 NEW 54 CHANNEL BLUETOOTH GPS RECEIVER PDA TOMTOM MOBILE $15.00 PC GPS Marine boat vector charts maps, world unlocked $99.99 NEW 3.5 inch TFT touch screen GPS+Map/Mp3/Mp4/2G SDcard $4.39 New Sandisk 1GB 1 G GB SD CARD Camera DV GPS Memory $5.00 NEW Magellan Maestro 4210 GPS*Raffle Ticket* MRP $400 $113.50 @ New 4.3", GPS+MAP SirfIII Samsung400MHz N-4210, 2015~ $9.99 Car Windshield suction mount holder for PDA/PALM/GPS $99.77 Garmin Mobile PC with GPS 20x myLot Discussions navigating a ship has any one of you ever thought how a ship navigates from a port to another port? How does the ship find the direction in which to go to reach a particular place? Do you use Global Positioning System? How often do you use it.How helpful do you find it. what is global positioning system GPS? how does it work? 1  2  3  4  5  6  7  8  9  10  Next