AIRPLANE
OPERATIONS
MANUAL
NAVIGATION AND
COMMUNICATION
REVISION 31
2-18-11
Page
21
Code
01
5 - NAV WINDOW/CONTROL SIDE IDENTIFICATION
− Identifies the window and which source equipment (side 1 or 2)
is active in that RMU.
− Colors:
− White for on-side source.
− Magenta for cross-side source.
6 - VHF NAV ACTIVE FREQUENCY
− Indicates the active frequency for that window.
− Colors:
− White for on-side operation.
− Yellow for cross-side operation.
− Digits are replaced by dashes in case of any failure in the
associated source.
7 - DME HOLD MODE ANNUNCIATION
− Indicates that the DME is in Hold Mode and the active DME
channel is selected separately from the active VOR/ILS
frequency.
− Color: Yellow.
8 - DME STATION IDENTIFICATION CODE
− Displays the digital identification code of the ground station to
which the DME is tuned with.
− Color: White.
9 - DME HOLD MODE FREQUENCY
− Indicates the active frequency in DME Hold Mode operation, in
VHF (represented) or TACAN formats.
− Color: White.
10 - ADF WINDOW/CONTROL SIDE IDENTIFICATION
− Identifies the window and which source equipment (side 1 or 2)
is active in that RMU.
− Colors:
− White for on-side source.
− Magenta for cross-side source.
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