NAVIGATION AND
COMMUNICATION
AIRPLANE
OPERATIONS
MANUAL
2-18-40
Page
10
Code
01
MARCH 30, 2001
8 - BEARING SOURCE ANNUNCIATIONS
− Label: VOR1, VOR2, ADF1 or ADF2.
− Color:
− Cyan for Bearing 1
− White for Bearing 2
− Circle coded for #1 source {VOR 1, ADF (for single installation)
or ADF 1 (for dual installation)}.
− Diamond coded for #2 source {VOR 2, ADF (for single
installation) or ADF 2 (for dual installation)}.
− Indicates the current source of input to the bearing pointers.
− Source annunciation will be retained on the PFD, even in case
of an invalid bearing signal.
9 - DME HOLDING AND DISTANCE ANNUNCIATION
− Color:
− Digits: green.
− NM label: white.
− H label: amber.
− Range:
− Short Range NAV: 0 to 300 NM.
− Resolution: 0.1 NM.
− When the DME hold is active an H label is displayed on the RH
of the DME distance digital readout. In this condition the H label
replaces the distance NM label.
10 - COURSE DEVIATION NAV SOURCE ANNUNCIATION
− Label: VOR1, VOR2, ILS1, ILS2 or FMS (optional)
– Color:
– Yellow: when the same source is selected for both sides or
is supplying cross-side.
– Green: when both sides present on-side sources, even if
they are different.
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