80Section 6GPS ReceiverReferenceTo turn the data fields off, highlight ‘DataFields Off’ and press ENTER.The next two options allow you to select either two(default) or four data fields at the top of the map screen.Change fields— Similar to the Position Page, thisfeature allows you to choose the data displayed on four user-selectable data fields. There are thirty-three available datatypes, including Average (AVG) Speed, Bearing, Distance, ETAto Destination (DEST), Speed, Time to Destination, Track, aTrip Odometer, plus others. See section 7 for a description ofnavigation terms.To change a data field:1. Highlight ‘Change Fields’ and press ENTER.2. Highlight the data field you wish to change andpress ENTER.3. Select the type of data you want to appear on thisfield and press ENTER.MapSource Info— shows the number of mapsdownloaded from the optional MapSource softwarepackage and the amount of memory used (in kilobytes).MapSource allows you to supplement the built-in mapwith additional detail, including residential streets.Each downloaded map is described by name, andmay be deselected if you wish to retain the map inmemory, but not display the data on the Map Page. Whena MapSource file is selected, the boundary for anydownloaded map is shown on the Map Page as a grayshaded outline.To display the MapSource Info Page:1. Highlight ‘MapSource Info’ and press ENTER.2. Use the ARROW keypad to scroll through the list ofdownloaded maps.3. To select/deselect a map, highlight the box to theimmediate left of the desired map. Press ENTER toselect/deselect the map. The map is selected andwill be displayed on the Map Page when an “X”appears in the box adjacent to that map.‘Map Setup’ allows you tochange map orientation,background map detail,on-screen Jeppesen data,text size, etc.Full-screen map display