Circle Of Uncertainty; External Lrus - Garmin GTN 625 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.

The External LRU page displays the external equipment connected to the

GTN and their connection status.

1. While viewing the System page, touch the External LRUs

2. When more information is available about the listed units,

touch the More Info key to view the information.

190-01004-03 Rev. F

Figure 15-9 Circle of Uncertainty

Figure 15-10 External LRU Page

Garmin GTN 625/635/650 Pilot's Guide

Area Within The

Circle Of Uncertainty

Ownship Symbol

LRU Available And

Communicating

LRU Not Available

Or Communicating

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