Garmin Astro 900 Owners Manual - Page 14

Screen Capture: Allows you to save the image on the device screen. Colors: Changes the appearance of the display background and selection highlight. Setting the Device Tones You can customize tones for messages, keys, warnings, and alarms. 1 Select Setup > Tones. 2 Select a tone for each audible type. Map Settings Select Setup > Map. Orientation: Adjusts how the map is shown on the page. North Up shows north at the top of the page. Track Up shows a topdown view with your current direction of travel toward the top of the page. Automotive Mode shows an 3D automotive view with the direction of travel at the top. Guidance Text: Sets when the guidance text appears on the map. Data Fields: Customizes the data fields and dashboards of the map, compass, elevation plot, and trip computer. Map Information: Enables or disables the maps currently loaded on the device. Advanced Map Settings Select Setup > Map > Advanced Map Setup. Auto Zoom: Automatically selects the appropriate zoom level for optimal use on your map. When Off is selected, you must zoom in or out manually. Zoom Levels: Adjusts the zoom level at which map items will appear. The map items will not appear when the map zoom level is higher than the selected level. Text Size: Selects the text size for map items. Detail: Selects the amount of detail shown on the map. Showing more detail may cause the map to redraw more slowly. Shaded Relief: Shows detail relief on the map (if available) or turns off shading. Tracks Settings Select Setup > Tracks. Track Log: Turns track recording on or off. Record Method: Sets a track recording method. Auto records the tracks at a variable rate to create an optimum representation of your tracks. Recording Interval: Sets a track log recording rate. Recording points more frequently creates a more-detailed track, but fills the track log faster. Auto Archive: Sets an automatic archive method to organize your tracks. Tracks are saved and cleared automatically. Color: Changes the color of the track line on the map. Changing the Units of Measure You can customize units of measure for distance and speed, elevation, depth, temperature, and pressure. 1 Select Setup > Units. 2 Select a measurement type. 3 Select a unit of measure for the setting. Time Settings Select Setup > Time. Time Format: Sets the device to show time in a 12-hour or 24- hour format. Time Zone: Sets the time zone for the device. Automatic sets the time zone automatically based on your GPS position. Position Format Settings NOTE: Do not change the position format or the map datum coordinate system unless you are using a map or chart that specifies a different position format. Select Setup > Position Format. Position Format: Sets the position format for the location information. Map Datum: Sets the coordinate system on which the map is structured. Map Spheroid: Shows the coordinate system the device is using. The default coordinate system is WGS 84. Heading Settings You can customize the compass settings. Select Setup > Heading. Display: Sets the type of directional heading shown on the compass. North Reference: Sets the north reference used on the compass. Go To Line (Pointer): Sets the behavior of the pointer that appears on the map. Bearing points in the direction of your destination. Course shows your relationship to the course line leading to the destination. Compass: Automatically switches from an electronic compass to a GPS compass when you are traveling at a higher rate of speed for a period of time. Calibrate Compass: Calibrates the compass (Calibrating the Compass, page 7). Altimeter Settings Select Setup > Altimeter. Auto Calibration: Automatically calibrates the altimeter each time the device is turned on. Barometer Mode: Sets how the device measures barometric information. Variable Elevation allows the barometer to measure changes in elevation while you are moving. Fixed Elevation assumes the device is stationary at a fixed elevation, so the barometric pressure should change only due to weather. Pressure Trending: Sets how the device records pressure data. Save Always records all pressure data, which can be helpful when you are watching for pressure fronts. Plot Type: Sets the type of data recorded and displayed in the plot. Records elevation changes over a period of time or distance, records barometric pressure over a period of time, or records ambient pressure changes over a period of time. Calibrate Altimeter: Calibrates the altimeter. Geocaching Settings Select Setup > Geocaches. Geocache List: Allows you to display the geocache list by names or codes. Found Geocaches: Allows you to edit the number of geocaches found. This number automatically increases as you log a find. Filter Setup: Allows you to create and save custom filters for geocaches based on specific factors (Creating and Saving a Geocache Filter, page 8). chirp Searching: Allows the device to search for a geocache containing a chirp accessory (Enabling chirp Searching, page 8). 10 Customizing Your Device