User Guide

190-00552-00 Rev. A
Garmin G1000 Pilot’s Guide for the Columbia 350/400
4-5
AUDIO PANEL AND CNS
TRANSCEIVER KEYS
The following four transceiver keys appear at the top of the Audio Panel: COM1 MIC , COM2 MIC , COM1 ,
and COM2 (Figure 4-2). COM Audio can be selected by pressing either the desired COM Key or by pressing
a COM MIC Key.
The Columbia 350/400 is not factory-equipped with COM3 MIC, COM3, or TEL capability. Pressing the
COM3 MIC , COM3 , or TEL Key does not illuminate the associated annunciator light.
Figure 4-2 Transceiver Keys
Disabled on
Columbia 350/400
Aircraft
Annunciator
Split COM
COM MIC KEYS
Pressing the COM1 MIC Key selects the COM1 radio as the active transceiver. Pressing the COM2 MIC Key
selects the COM2 radio as the active transceiver. The Receiver Audio Key,
COM1 , or COM2 is also selected.
The COM frequency is highlighted in green in the active frequency field of the PFD and MFD.
Only one transceiver can be selected at a time. If
COM2 MIC Key is pressed when COM1 MIC is active, the
unit switches to COM2 .
COM RECEIVE KEYS
Pressing the COM1 Receiver Key selects the COM1 radio as an active receiver. Pressing the COM2 Receiver
Key selects the
COM2 radio as an active receiver. Any combination of radios can be selected separately or
simultaneously regardless of the active transceiver selection. The active COM radio is always heard on the
headsets.