190-00498-07 Rev. A
Garmin G1000 Pilot’s Guide for Cessna Nav III
101
AUDIO PANEL AND CNS
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS EIS AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE AFCS ADDITIONAL
FEATURES APPENDICES INDEX
TRANSMIT/RECEIVE INDICATIONS
DuringCOM transmission, a white TX appears by the active COM frequency replacing the Frequency
Transfer Arrow. On the Audio Panel, when the active COM is transmitting, the active transceiver
COM MIC
KeyAnnunciatorashesapproximatelyoncepersecond.
DuringCOMsignalreception,awhiteRX appearsbytheactiveCOMfrequencyreplacing theFrequency
TransferArrow.Entertainmentaudio, ifselected, ismuted duringactive COMradio reception. Referto
AdditionalAudioPanelFunctionslaterinthissection,anddetailsontheDataLinkReceiverintheAdditional
FeaturesSection.
Figure 4-4 COM Radio Transmit and Receive Indications
Annunciator
Flashes During
Transmission
Transmit and
Receive Indicators
COM TRANSCEIVER MANUAL TUNING
TheCOMfrequencycontrolsandfrequencyboxesareontherightsideoftheMFDandPFD.
Manually tuning a COM frequency:
1) Turn the COM Knob to tune the desired frequency in the COM Tuning Box (large knob for MHz; small knob for
kHz).
2) Press the
Frequency Transfer
Key to transfer the frequency to the active field.
3) Adjust the volume level with the COM VOL/SQ Knob.
4) Press the COM VOL/SQ Knob to turn automatic squelch on and off.
Turn the
VOL/SQ
Knob to adjust
volume. Press the Knob to Turn
Automatic Squelch On or Off Press the
Frequency Transfer
Key to Transfer COM
Frequencies Between Active
and Standby Frequency Boxes
Turn the
COM
Knob to
Tune the Frequency in
the Tuning Box
Figure 4-5 COM Frequency Tuning