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190-00498-07 Rev. A
Garmin G1000 Pilot’s Guide for Cessna Nav III
25
SYSTEM OVERVIEW
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE
AFCS
ADDITIONAL
FEATURES
APPENDICES INDEX
GPS RECEIVER OPERATION
Each GIA 63/63W Integrated Avionics Unit (IAU) contains a GPS receiver. Information collected by the
specified receiver (GPS1 for the #1 IAU or GPS2 for the #2 IAU) may be viewed on the AUX - GPS Status Page.
These GPS sensor annunciations are most often seen after system power-up when one GPS receiver has
acquired satellites before the other, or in SBAS (Satellite Based Augmentation System) capable systems, one of
the GPS receivers has not yet acquired an SBAS signal. While the aircraft is on the ground, the SBAS signal may
be blocked by obstructions causing one GPS receiver to have difficulty acquiring a good signal. Also, while
airborne, turning the aircraft may result in one of the GPS receivers temporarily losing the SBAS signal.
If the sensor annunciation persists, check for a system failure message in the Messages Window on the PFD.
If no failure message exists, check the GPS Status Page and compare the information for GPS1 and GPS2.
Discrepancies may indicate a problem.
Viewing GPS receiver status information
1) Use the large FMS Knob on the MFD to select the Auxiliary Page Group (see Section 1.7 for information on
navigating MFD page groups).
2) Use the small FMS Knob to select GPS Status Page.
Selecting the GPS receiver for which data may be reviewed
1) Use the FMS Knob to select the AUX - GPS Status Page.
2) To change the selected GPS receiver:
a) Press the desired
GPS
Softkey.
Or:
a) Press the MENU Key.
b) Use the FMS Knob to highlight the receiver which is not selected and press the ENT Key.