MART Vol. II MO/MP - NESA - Civil Air Patrol

method of keeping records during contour searches is to shade searched areason the map. The areas that you leave un-shaded are the areas that you have notsearched.8.8 Other SAR-related GPS FeaturesThere is no substitute for thoroughly studying your GPS user’s guide.However, we will highlight some features of the GPS (both the old type and theGX-55) that are important to our missions (GX-55 SAR operations are covered inAttachment 2).User guides can often be found on the manufacturer's web site. Also, severalCAP Wings have specially developed guides that are very useful.8.8.1 Display Current PositionSelect the AUX (Auxiliary) page.GX-55From the NAV (Navigation) screen, turn the large knob until "GPS Position" isdisplayed. [Note: PDOP (Position Dilution of Precision) is also displayed, and it isbased on the geometry of the satellites used in the position solution. A lowernumber is a better value than a large one; that is, a PDOP of 3 indicates a morereliable position fix than a value of 7.]8.8.2 Create a User WaypointIn the WPT (Waypoint) mode turn to "Add User Waypoint" and press ENT.Enter an identifier and press ENT, then enter the latitude and longitude and pressENT.GX-55From the DB (Database) screen, turn the large knob until "Create UserWaypoint by Lat/Lon" is displayed and press ENTER. Use the large and smallknobs to enter the desired latitude and longitude. [Note: the large knob moves theflashing cursor forwards or backwards; the small knob selects individualcharacters or numbers at the flashing cursor.] Press ENTER to accept and savethe user waypoint (or you can press NAV to abort the procedure).You can also create a user waypoint set to a US Grid coordinate, whichallows you to fly directly to the corner of a grid or quadrant (or use it in a flightplan). From the DB screen, turn the large knob until "Create User Waypoint byUS Grid" is displayed and press ENTER. Use the large and small knobs to enterthe desired grid identifier. Press ENTER to accept and save the waypoint8.8.3 Save Current Position as a User WaypointPress the HLD pushbutton captures present lat/long and stores it in the userwaypoint memory under the name "HLDxx," where 'xx' is a number between 00and 99. You can then rename the waypoint. [Note: Under some settings you mustpush the HLD pushbutton twice to store the waypoint.]151