Page Display Definitions
2-56
GNS-XLS Flight Management System
Rev. 3
Sep/96
TUNE 3/4 (Page 3 of 4) NAV
Pressing the TUNE Key again will display this page and the following
information may be observed.
NAV 1 or NAV 2:
The station identifier to which the respective NAV receiver is tuned.
(KEY) will be displayed when the frequency or identifier of the station
has been entered using the CDU keyboard.
FREQ:
The frequency currently tuned and displayed on the respective con-
trol head. (MAN) in this field indicates the frequency was manually
entered via the control head.
The field may also show
(KEY) if the ident is unknown
and the frequency was tuned
via the CDU keyboard.
(KEY) will appear in the NAV
1 or NAV 2 field if the IDENT
is known. No annunciation in
this field indicates the VPU is
automatically tuning the NAV
radio. (Figure 2-67)
RANGE:
The range in nautical miles and tenths from aircraft present position
to the DME. (Figure 2-67) The station identifier can also appear in the
field between the range and range value field if the control head is
placed in the DME HOLD mode. NO ID is displayed in this field if the
identifier of the held station is unknown.
BRG:
The bearing in whole degrees from aircraft present position to the
VOR. (Figure 2-67)
NAV 1 SGF
FREQ (MAN) 116.90
RANGE 105.0
BRG 350
NAV 2 ARG
FREQ (MAN) 114.50
RANGE 109.2
BRG 071
TUNE 3/4
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Figure 2-67
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