Figure 16-136. RTU ADF Pages
ATC OPERATION
The ATC section on the RTU top-level page
provides the setting functions for the ATC
code. Other ATC control functions are han-
dled on the ATC main display page.
The active code can be selected from the ATC
section of the top-level page and both the ac-
tive and the recall codes can be set from the
ATC main display page. The Mode-C opera-
tion and self-test initiation are also controlled
on the ATC main page display (Figure 16-137).
ATC CONTROL Page
The ATC CONTROL page annunciations are
shown below:
Figure 16-137. RTU ATC Page
ATC Source Annunciation
The ATC source annunciation indicates which
transponder the CDU and RTU are control-
ling. Only one transponder is active at a time.
Transponder Code Display
This display shows the selected transponder
code.
IDENT Line Select Key and
Annunciation
The IDENT line select key controls the
transponder IDENT function. The IDENT an-
nunciation enlarges and changes to cyan during
ident functions (approximately 18 seconds).
Altitude Source Annunciator
When Mode-C is enabled, the altitude data
source (ADC 1 or ADC 2) is shown in cyan
below the altitude readout.
Mode-C Control
The ALT line select key controls altitude re-
porting. ALT is shown in larger cyan when al-
titude reporting is selected. When selected off,
only mode A replies are transmitted.
ADF 1
404.0
320.0
TEST
RETURN
Collins
BRT
IDENT
DME--H
1/2
ANT
ADF
MODE
BFO
OFF
ON
PRESET
PAGE
ADF 1
404.0
390.0
PAGE
RETURN
Collins
BRT
IDENT
DME--H
1/2
3
TUNE MODE
1
2
566.0
304.0
FREQ
PRESET
1
404.0
ACTIVE
ANT
4
BFO
ATC1
1200
5322
TEST
RETURN
Collins
BRT
IDENT
DME--H
1/2
ALT
ON
OFF
ID
RPLY
ADC1
3000FT
XPNDR FAIL
16-76
FOR TRAINING PURPOSES ONLY
KING AIR C90GTi/C90GTx
PILOT TRAINING MANUAL
16
A
VIONICS
Summary of Contents for C90GTi
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