DME (Distance Measuring Instrument) Is Capable Of Making A Number Of Aircraft At The Same Time To Measure Their Own And Fixed Ground Device Tilt Distance. The International Civil Aviation Organization Has Adopted DME As The Auxiliary Equipment Of Civil Aviation. Equipment By Ground Beacon (Answering Machine) And Airborne Equipment (Interrogator), Which Rangefinder Ground Beacon Stations According To The Transmit Pulse Peak Power (1kW And 100W) Divided Into Two Categories, High Power Ground Beacon (1kW) And VOR Combination Configuration Constitute Polar Coordinates (Rho And Theta) Department Of Aviation Navigation And Positioning System For Aircraft In The Route (Route) And Airport Exit Flight Navigation And Positioning. Small Power Ground Beacon (100W) Configuration In The Airport Terminal, With The Instrument Landing System With Use Alternative Marker Beacon), In The Aircraft Fell Landing Stage In Real Time To Provide Aircraft To The Runway With Location Of The Continuous Distance Slope Distance Information.