Garmin 300XL Pilot's Manual And Reference

Garmin 300XL Pilot's Manual And Reference Manual pdf 114 page image

104SECTION7 UNIT SETTINGSMagnetic VariationArrival AlarmThe GNC 300XL has three magnetic variation options: true, auto, or user-defined.To set the magnetic variation:1. Press and hold M, and use O to display the ‘Mag Var/Arvl Alarm’ page.2. Press C twice and use K to select ‘auto mag’, ‘true hdg’ or ‘user mag’.3. If user is selected, use O to highlight the magnetic variation value, and use K and Oto enter the value and ‘E’ or ‘W’. Press C to finish.If ‘auto’ mag var is selected, all track, course and heading information will be cor-rected to the magnetic variation computed by the GPS receiver. The ‘true’ setting willreference all information to true north, and the ‘user’ setting will correct information toan entered value.The GNC 300XL’s arrival alarm can be set to notify the pilot with a message whenyou have reached a user defined distance to a final destination waypoint (the direct-towaypoint or the last waypoint in a route). Once you have reached the set distance (upto 99.9 units), an ‘Arrival at _____’ message will be displayed.To set the arrival alarm distance:1. Press and hold M, and use O to display the ‘Mag Var/Arvl Alarm’ page.2. Press C twice and use O to select the arrival distance field.3. Use K and O to enter the desired distance. Press C to finish.The nearest airport search settings allow you to define the runway length andsurface type used in determining the nine nearest airports displayed. A minimum run-way length and surface type may be entered to prevent airports with small runways, orrunways that are not of appropriate surface, from being displayed. The default settingsare ‘0 ft/mt’ for runway length and ‘any’ for runway surface type.The runway length and surface type settings allowpilots of large, high-performance aircraft to directthe T key function to ignore those airports atwhich if would be difficult, if not impossible, toland their aircraft.Setting the arrival alarm to 10 nautical miles.