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Modern Navigation (17 pages)

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Modern Navigation

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Pages:
17
School:
Massachusetts Institute of Technology
Course:
12 215 - Modern Navigation

Unformatted text preview:

12.215 Modern Navigation Thomas Herring ([email protected]), http://geoweb.mit.edu/~tah/12.215 12/09/2009 12.215 Lec 22 3 Today’s class • Basics of Handheld GPS –Run through typical screens that are available in handheld GPS –Navigation screens – Tips on using this type of GPS 12/09/2009 12.215 Lec 22 4 Garmin Receivers • This is the brand we will use in our “field trip” next week. • At left is the Garmin V (we will also use a Garmin III. • Both receivers work either in “portrait” or “landscape” mode • Set by pressing and holding the page button 12/09/2009 12.215 Lec 22 5 Basic Screens • Start up screen when receivers starts • The satellite constellation it shows depends on the last almanacs that we downloaded and where it thinks you are located • Pressing menu allows user to graphically select location • Height of bars denotes signal strength and solid bars indicate that the satellite can be used for positioning (i.e., the ephemeris for the satellite has been downloaded). 12/09/2009 12.215 Lec 22 6 Map screens • Page and quit cycle through the screens. After the receiver has locked up on satellites and has a position, the map screen appears • The menu button allows the features of the map to be changed. • The screen below is when the receiver is in navigation mode and is given directions on where to go. • When you get close to a turn, the map changes to a detailed view of the turn. In and Out control the zoom on map. 12/09/2009 12.215 Lec 22 7 Map step up screen • The map setup screens allow of great deal of control of the appearance of the maps. • The top menu line (moved with the rocker pad) lets different parts of the map be changed.



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