Embraer Prodigy
®
Flight Deck 100 Pilot’s Guide
190-00728-04 Rev. A
78
FLIGHT INSTRUMENTS
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.
Figure 2-24 Selecting a Navigation Source
Pressing the
CDI
Softkey
Cycles through
Navigation Sources
GPS
Selected
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:
•AlocalizerorILSapproachhasbeenloadedintotheactiveightplan
•TheFinalApproachFix(FAF)istheactiveleg,theFAFislessthan15nmaway,andtheaircraftismoving
towardtheFAF
•Avalidlocalizerfrequencyhasbeentuned
•TheGPSCDIdeviationislessthan1.2timesfull-scaledeection
GPS steering guidance is still provided after the CDI automatically switches to LOC until LOC capture, up
totheFinalApproachFix(FAF)foranILSapproach,oruntilGPSinformationbecomesinvalid.Activatinga
Vector-to-Final (VTF) also causes the CDI to switch to LOC navigation source. GPS steering guidance is not
provided after the switch.