King Air C90GTi, Pilot Training Manual

Page: 410 / 557

Reporting Altitude Display
The Mode-C pressure altitude readout is
shown in white when altitude reporting is se-
lected.
Flight ID Display
The Flight ID, if option is installed, is displayed
and adjusted on the RTU top-level page and
the ATC Control page (Figure 16-127).
TEST Function
The TEST line select key initiates the
transponder self-test. The TEST annunciator
enlarges in cyan while the test is active (ap-
proximately 10 seconds).
XPDR FAIL Annunciator
xPDR FAIL appears in yellow to the right of
the ATC legend when a transponder fails.
CDU TUNING
TUNE PAGE Display
The TUNE PAGE has the following con-
trols/displays. Similar to the RTU all green fre-
quencies are the active frequencies and all
white frequencies are the standby or unused
frequencies (Figure 16-138). For installations
that have a second CDU this TUNE feature is
not active on the right CDU.
COM Display
COM radio tuning is accomplished by enter-
ing the desired frequency in the scratchpad
and then touching either the first or second
line select keys on either side. The second po-
sition serves as the RECALL or PRESET fre-
quency (i.e., standby frequency) and is the
standard method of entry. Pressing the RE-
CALL or PRESET key again will then swap
the frequencies. If a frequency is inserted in
the first line it will immediately be the active
frequency and the previous one will move to
the second line. For all frequencies, the deci-
mal is assumed and does not need to be in-
serted (e.g., 123.4 can be entered as 1234).
Additionally, the active frequencies are always
identical between the RTU and CDU. Use
caution when working with the standby fre-
quencies as they are handled differently be-
tween the CDU and RTU.
Figure 16-138. CDU Tune
The CDU also contains a FREQUENCY se-
lection under the IDx (index) page (Figure
16-139). This page contains frequencies for
those airports entered into the flight plan.
Press the line select key next to the desired fre-
quency and it will enter into the scratchpad.
The pilot can then navigate to the TUNe page
and the frequency will still be in the scratch-
pad for use.
The SQ OFF annunciation beside the COM
legend appears when squelch has been dis-
abled. Tx annunciates when the radio is trans-
mitting.
EXEC
NEXT PREV
MFD
DATA
MFD
ADV
CLR
DEL
BRT
DIM
DEP
ARR
PERF LEGS FPLN DIR
MSG
TUN
IDX
MFD
MENU
A B C D F G
H I J K L M
O P Q R T U
V X Y Z
SP
/
E
N
S
W
1 2 3
4 5 6
7 8 9
+ -
/
0
/
TUNE
122.875
COM1 COM2
RECALL RECALL
MK-HI NAV2
DME1 DME2
[
[
412.5
NAV1
ATC1
121.700
123.875
113.80/ICT
/
/
HOLD 116.80
3144
110.30
134.250
ADF
/
/
/ /
HOLD /
16-77
FOR TRAINING PURPOSES ONLY
KING AIR C90GTi/C90GTx PILOT TRAINING MANUAL
16
A
VIONICS