SECTION 7 CESSNA
AIRPLANE AND SYSTEM DESCRIPTION MODEL T182T NAV III
GFC 700 AFCS
U.S.
STANDARD AVIONICS (Continued)
AUDIO PANEL (GMA)
The audio panel for the G1000 system integrates all of the
communication and navigation digital audio signals, intercom system
and marker beacon controls in one unit. It is installed on the instrument
panel between the PFD and the MFD. The audio panel also controls
the reversionary mode for the PFD and MFD.
Use of the COM 1/2 function is not approved.
INTEGRATED AVIONICS UNIT (GIA)
Two integrated avionics units are installed in the G1000 system. They
are mounted in racks in the tailcone, behind the baggage curtain.
These units act as the main communications hub linking all of the other
peripheral parts to the GDU displays. Each unit contains a GPS
receiver, a VHF navigation receiver, VHF communication transceiver
and the main system microprocessors. The first GIA unit to acquire a
GPS satellite 3-D navigation signal is the active GPS source.
ATTITUDE AND HEADING REFERENCE SYSTEM (AHRS)
AND MAGNETOMETER (GRS)
The AHRS provides airplane attitude and flight characteristics
information to the G1000 displays and to the integrated avionics units,
which is located in the tailcone of the airplane. The AHRS unit contains
accelerometers, tilt sensors and rate sensors that replace spinning
mass gyros used in other airplanes. The magnetometer is located
inside the left wing panel and interfaces with the AHRS to provide
heading information.
(Continued Next Page)
T182TPHBUS-00
7-84
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