Avidyne IFD540 - Page 23

IFD500 Series Pilot Guide
System Overview 1-15
 Six (6) Dedicated Function Keys consisting of:
o Direct-To (“─D─>”)
o Procedure (“PROC”)
o Nearest (“NRST”)
o Frequency List (“FREQ)
o Enter (“ENTR”)
o Clear (“CLR”)
 Ambient Light Sensor
 CDI Navigation Source knob † or GPS/OBS Button *
* Applicable only to the IFD510 and IFD545