9 - AUX PAGES171190-00356-00 Rev GSetup 1An arrival alarm, provided on the CDI / AlarmsPage, may be set to notify you with a message whenyou have reached a user-defined distance to thefinal destination (the direct-to waypoint or the lastwaypoint in a flight plan). Once you have reachedthe set distance (up to 99.9 units), an “Arrival at[waypoint]” message is displayed.Units / Mag Var— allows you to configure the dis-played data to standard or metric units of measure.This setting applies to distance, speed, altitude,fuel, pressure and temperature and also providesthree variation (heading) options: Magnetic, True,or User. If “Magnetic” is selected, all track, courseand heading information is corrected to the mag-netic variation computed by the GPS receiver. The“True” setting references all information to truenorth. The “User” selection allows the pilot to entervalues between 0º and 179º E or W.Position / Map Datum— configures positionreadout information to the desired position formatand shows the Map Datum. The NavData® carduses the WGS 84 map datum to conform to WAASrequirements.Date / Time— provides settings for time format(local or UTC; 12- or 24-hour) and time offset. Thetime offset is used to define current local time. UTC(also called “GMT” or “zulu”) date and time are cal-culated directly from the GPS satellites’ signals andcannot be changed. If you prefer to use local time,simply designate the offset by adding or subtractingthe correct number of hours and minutes.Not all time zones are offset from UTC by a wholenumber of hours (e.g., Newfoundland, CentralAustralia, India, Iraq, ...).Airspace AlarmsTo set the airspace warning messages or changethe altitude buffer:1. Select “Airspace Alarms” from the setup 1page.2. Turn the large right knob to highlight the“On”/”Off” field next to the desired airspacetype.3. Turn the small right knob to select “On” or“Off”, as desired. Press ENT to accept theselection.4. To change the altitude buffer, turn the largeright knob to highlight the “Altitude Buffers”field. Use the small and large right knobsto enter the desired buffer distance. Press ENTwhen finished.
