In the above illustration, the GPS 100 calculated the closest point ofapproach as 025°, 5.9 nautical miles from the lighthouse. This is the pointalong your route at which you will pass abeam the lighthouse. If you want thispoint to be a part of your route, simply press the ENT key with the cursor over“OK?”. This places a waypoint named “LTHS0” into your route giving you theability to navigate to the closest point of approach — and know exactly whenyou pass abeam the lighthouse!Suppose your are departing Love airport in Dallas, Texas (KDAL) bound forAdams Field in Little Rock, Arkansas (KLIT). You wish to proceed direct toLittle Rock, but ATC requires an additional waypoint along your route. Youdetermine that your direct route will take you past the Texarkana VOR (TXK).Use the CPA function to create a waypoint on your direct route from Dallasto Little Rock.In this example, the GPS 100 created a CPA waypoint on the 334° radial 27.5nm from TXK. This waypoint allows you to comply with ATC requests whileflying a direct route from Dallas to Little Rock.12-6
