Garmin GPSMAP 172C Owner's Manual - Page 80

Reference Main Menu: System Tab/ Units Tab Main Menu-System Tab (Simulator Mode) Main Menu-Units Tab 70 Track Control* - 'Auto Track' steers to the current navigation point. 'User Track' allows you to enter a heading in the 'Track' field. Track* - lets you enter a heading. Speed* - lets you enter a speed. Transducer* - lets you simulate using a Depth Only, Temp Only, or Temp/Speed transducer. * These fields only appear when the unit is in Simulator Mode. • System Information - displays the unit's software, basemap version, and electronic serial number. Press MENU for the following options: • Defaults - restores settings on System page to default values. • All Unit Defaults - restores all settings to Garmin's original setup values for the entire unit. Units SubmenuTab- defines settings for Position Format, Map Datum, Heading, Distance, Speed, Elevation, Depth, and Temperature. The following settings are available: • Position Format - is used to change the coordinate system in which a given position reading is displayed. You should only change the position format if you are using a map or chart that speci- fies a different position format or wish to use a format you are familiar with. The default format is latitude and longitude in degrees, minutes, and thousandths of a minute (hddd°mm.mmm'). The following additional formats are available: • hddd.ddddd° - latitude/longitude in decimal degrees only • hddd°mm'ss.s" - latitude/longitude in degrees, minutes, seconds • UTM/UPS - Universal Transverse Mercator / Universal Polar Stereographic grids • British Grid • Dutch Grid • Finnish KKJ27 • German Grid • India Zones • Irish Grid • Loran TD • Maidenhead • MGRS • New Zealand • Qatar Grid • RT90 • Swedish Grid • Swiss Grid • Taiwan Grid • User Grid • W Malayan RSO