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Cockpit Reference Guide for the Prodigy

Flight Deck 300

190-00761-02 Rev. A

100

Abnormal Operation

Flight

InstrumentsEAS

Nav/Com/

XPDR/AudioAFCSGPS Nav

Flight

PlanningProcedures

Hazard

Avoidance

Additional

Features

Abnormal

Operation

Annun/

AlertsAppendixIndex

prominently displayed, also in yellow, on the HSI slightly above and to the right of the

aircraftsymbolontheCDIasshowninthefollowinggure.Also,theCDIdeviation

bar is removed from the display. Lastly, but at the same time, a ‘GPS NAV LOST’ alert

messageappearsonthePFD.

Normal navigation using GPS/SBAS source data resumes automatically once a valid

GPS solution is restored.

It is important to note that estimated navigation data supplied by the system in

DRModemaybecomeincreasinglyunreliableandmustnotbeusedasasolemeans

of navigation. If, while in DR Mode, airspeed and/or heading data is also lost or

notavailable,theDRfunctionmaynotbecapableofestimatingyourpositionand,

consequently, the system may display a path that is different than the actual movement

of the aircraft. Estimated position information displayed by the system through

DRwhilethereisnoheadingand/orairspeeddataavailableshouldnotbeusedfor

navigation.

DRModeisinherentlylessaccuratethanthestandardGPS/SBAS Mode due to the

lack of satellite measurements needed to determine a position. Changes in wind speed

and/or wind direction compounds the relative inaccuracy of DRMode.Becauseofthis

degraded accuracy, the crew must maintain position awareness using other navigation

equipment until GPS-derived position data is restored.

Dead Reckoning Indications

Symbolic Aircraft

(Map pages and Inset Map)

CDI ‘DR’ Indication on PFD

1 2 ... 111 112 113 114 115 116 117 118 119 120 121 ... 160 161

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Garmin Software Version 0734.54 Guía de usuario Pagina 116