Com Operation; Com Tuning Boxes - Garmin G1000 NXi Pilot's Manual

AUDIO PANEL AND CNS

4.2 COM OPERATION

COM TUNING BOXES

When turning on the system for use, the system remembers the last frequencies used and the active
NOTE:
COM transceiver state prior to shutdown.
Active Field – The COM Frequency Box is composed of four fields; the two active frequencies are on the
1
left. An active COM frequency is displayed in green and indicates that the COM transceiver is selected
on the Audio Panel (COM1 MIC or COM2 MIC Key). Both active COM frequencies appearing in white
indicate that no COM radio is selected for transmitting (PA Key is selected on the Audio Panel).
Frequency Transfer Arrow – Moves between the upper and lower radio frequency fields with the Frequency
2
Tuning Box. Indicates which COM transceiver is selected for frequency transfer between the Standby and
Active fields.
Standby Field – The COM Frequency Box is composed of four fields; the two standby frequencies are on
3
the right. Frequencies in the standby field are displayed in either white or gray. The standby frequency in
the tuning box is white. The other standby frequency is gray.
Frequency Tuning Box – Moves between the upper and lower radio frequency fields with the Frequency
4
Transfer Arrow. Indicates which COM transceiver is to be tuned in the Standby Field.
Automatic Squelch Indication – Indicates that Automatic Squelch is disabled. Automatic Squelch quiets
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unwanted static noise when no audio signal is received, while still providing good sensitivity to weak COM
signals. When Automatic Squelch is disabled, COM audio reception is always on. Continuous static noise
is heard over the headsets and speaker, if selected.
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1 2 3 4
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Figure 4-3 COM Tuning Box Indications
Garmin G1000 NXi Pilot's Guide for the Cessna Nav III
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190-02177-00 Rev. A