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AP, yaw damper (YD), auto trim and
manual electric pitch trim functions.
• The PFDs display FD commands and
mode annunciations.
Yoke-mounted and throttle-mounted switches
complete the system control inputs:
• CWS switch
• AP DISC switch
• GA switch
GTX33 Mode S Transponder
and GTX33D Mode S Diversity
Transponder
The G1000 includes two transponders: A GTX
33 Mode S transponder for the copilot side, and
a GTX 33D Mode S diversity transponder for
the pilot side. Each transponder connects
(through its same-side GIA) to the PFDs for
control and display.
Both transponders provide mode A (normal),
mode C (altitude encoding) and mode S (data
communications) functions. The GTX 33D
provides diversity capability.
Both transponders are automated transceivers
operating on radar frequencies, receiving
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ground radar and traffic alert and collision
avoidance system (TCAS) interrogations at
1030 MHz, then transmitting a coded response
to ground-based radar at 1090 MHz.
Ground stations can interrogate mode S
transponders individually using a 24-bit
International Civil Aviation Organization
(ICAO) mode S address, which is unique to the
particular aircraft. In addition, ground stations
may interrogate a GTX 33 for its
transponder data capability and the aircraft
flight identification, which is the registration
number or other call sign. The GTX 33 makes
the maximum airspeed capability (set during
configuration setup) available to TCAS systems
on board nearby aircraft to aid in the determination
of TCAS advisories.
The unit includes an altitude monitor and
traffic information service (TIS). Altitude
and traffic alerts are announced by a voice
or tone audio output. The PFD displays the
code, reply indication, and operating mode.
The MFD displays TIS graphical information,
which may also appear in the PFD inset
map. A traffic alert causes the PFD inset
maps to automatically appear.
Audio/Marker Beacon System
The GMA 1347D audio amplifier and marker
beacon receiver is a panel-mounted system.
The unit has a microcontroller for processing
front panel key commands, annunciator control,
input/output functions, and communication.
It includes an intercom system (ICS)
with public-address (PA) function.
Weather Radar
The GWX 68 weather avoidance radar provides
real-time radar information, including precipitation
and ground-mapping returns to the
G1000. Returns are displayed on the MFD. The
GWX 68 communicates though the high-speed
data bus by way of the GDL69A.
XM Weather Datalink
The GDL69A is a remote-mounted satellitebroadcast
receiver that receives XM weather for
display on the MFD (and/or PFD inset map).
The GDL 69A can receive XM weather and
XM radio services. It communicates to the
G1000 through the high-speed data bus.
AVIONICS POWER
SWITCHES
Three switches control power to the Citation
Mustang avionics and instruments:
• Battery switch
• Avionics power switch
• Standby instruments switch
BATTERY SWITCH
The battery toggle switch is in the DC
POWER section of the left lower instrument
panel and has three positions: BATT, OFF, and
EMER (Figure 16-3). The switch controls
DC power to the other switches, and directly
supplies power to components required for
EICAS operation.
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Figure 16-3. Battery Switch
The EICAS display is needed by the pilot during
all aircraft operations, including start-up.
For this reason, some components are powered
when the battery switch is set to BATT
or EMER:
• BATT—Both PFDs, MFD, GIAs, GEAs
• EMER—PFD1, GIA1, GEA1
NOTE
Flight instruments, and all navigation,
communications, and flight
guidance functions are not enabled
by the battery switch alone. The
AVN PWR switch must also be
powered on (up).
AVIONICS POWER SWITCH
The avionics power switch is in the AVIONICS
section of the left lower instrument panel and
has two positions:AVN PWR and OFF (Figure
16-4). This switch energizes the avionics solidstate
relays (SSRs) closed. Each relay provides
DC power from a powered bus (left or right
electrical bus or emergency bus), through a corresponding
avionics bus, to power specific units.
All units receive from an avionics bus, except
those powered directly from the battery switch.
STANDBY FLIGHT
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Cessna塞斯纳公务机飞行手册(101)
