I A P 2 0 2 3 . 0 0 1 - A F M / I R I S T E X A N I I P A G E | 146
FOR SIMULATION USE ONLY – NOT A TRAINING AID
Slaved Navigation Source - OFF
First Line OFF
Second Line Blank
Third Line Blank
When the bearing pointer #1 or #2 is slaved to VOR/ILS, the third line is only
displayed when the DME is available on the paired channel equivalent to the
currently tuned VOR/ILS frequency.
When bearing pointer #1 or #2 is slaved to VOR/ILS, and the DME is not tuned to the
paired channel equivalent to the currently tuned VOR/ILS frequency, the third line of
the needle source readout is blanked.
In the case of invalid or not available (flagged) data and bearing pointer #1 or #2 is
slaved to VOR or the VOR/ILS receiver is tuned to an ILS frequency, the bearing
pointer is removed from display on the compass rose.
If bearing data from the navigation source slaved to bearing pointer #1 or #2 is
failed, the bearing pointer #1 or #2 needle readout descriptive text consists of the
following:
Slaved Navigation Source Failed – FMS or VOR
First Line FMS or VOR
Second Line Red “X”
Third Line Blank
GROUND TRACK POINTER
The ground track pointer on the HSI, indicates the current ground track of the
aircraft on the compass rose.
COURSE DEVIATION INDICATOR
The course deviation indicator (CDI) on the HSI consists of the head, tail, deviation
bar and scale.
The head, tail, and scale are white regardless of the selected navigation source.
When the selected navigation source is VOR/LOC and a VOR/LOC station is tuned,
the deviation bar will be white. When the selected navigation source is FMS, the
deviation bar is magenta.
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