Garmin G1000 PDAs & Smartphones User Manual


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190-00498-07 Rev. A
Garmin G1000 Pilot’s Guide for Cessna Nav III
63
FLIGHT INSTRUMENTS
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE
AFCS
ADDITIONAL
FEATURES
APPENDICES INDEX
Changing navigation sources:
1) Press the CDI Softkey to change from GPS to VOR1 or LOC1. This places the light blue tuning box over the
NAV1 standby frequency in the upper left corner of the PFD.
2) Press the CDI Softkey again to change from VOR1 or LOC1 to VOR2 or LOC2. This places the light blue tuning
box over the NAV2 standby frequency.
3) Press the CDI Softkey a third time to return to GPS.
Pressing the
CDI
Softkey
Cycles through
Navigation Sources
GPS
Selected
Figure 2-21 Selecting a Navigation Source
LOC1
Selected
NAV1 Selected for Tuning
VOR2
Selected
NAV2 Selected for Tuning
ThesystemautomaticallyswitchesfromGPStoLOCnavigationsourceandchangestheCDIscalingaccordingly
when all of the following occur:
•AlocalizerorILSapproachhasbeenloadedintotheactiveightplan
•Thenalapproachx(FAF)istheactiveleg,theFAFislessthan15nmaway,andtheaircraftismoving
towardtheFAF
•Avalidlocalizerfrequencyhasbeentuned
•TheGPSCDIdeviationislessthan1.2timesfull-scaledeection
GPSsteeringguidanceisstillprovidedaftertheCDIautomaticallyswitchestoLOCuntilLOCcapture,up
totheFinalApproachFix(FAF)foranILSapproach,oruntilGPSinformationbecomesinvalid.Activatinga
Vector-to-Final(VTF)alsocausestheCDItoswitchtoLOCnavigationsource.GPSsteeringguidanceisnot
provided after the switch.
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