Circle Of Uncertainty - Garmin GTN 725 Pilot's Manual

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Circle of Uncertainty

The Circle of Uncertainty depicts an area where the ownship location is

guaranteed to be when the aircraft location cannot be accurately determined.

The area of the Circle of Uncertainty becomes larger as GPS horizontal accuracy

degrades and smaller as it improves. The Circle of Uncertainty is shown only

when the aircraft is on the ground. The Circle of Uncertainty area is transparent

so that features within it may still be seen.

190-01007-03 Rev. D

Figure 16-7 Circle of Uncertainty

Garmin GTN 725/750 Pilot's Guide

Area Within The

Circle Of Uncertainty

Ownship Symbol

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