User Guide

190-00592-01 Rev. A Garmin G1000 Pilot’s Guide for the Diamond DA40/40F 4-6
AUDIO PANEL AND CNS
4.2 COM OPERATION
COM TRANSCEIVER SELECTION AND ACTIVATION
NOTE: During PA Mode, the COM MIC annunciator is extinguished and the COM active frequency color is
white, indicating that the COM transmitter is inactive.
The COM radio frequency box is composed of four fields consisting of two standby fields and two active
fields. In the COM Frequency Box, the active frequencies are on the left side and the standby frequencies are
on the right.
The COM transceiver is selected for transmitting by pressing the COM MIC Keys on the Audio Panel. A
selected COM frequency displayed in green indicates that the COM transceiver is selected on the Audio Panel
( COM1 MIC or COM2 MIC Keys). Both active COM frequencies appearing in white indicate that no COM
radio is selected for transmitting (or that the PA Key is selected on the Audio Panel).
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.
During reception of audio from the COM radio selected for transmission, audio from the other COM radio
is muted.
Active
Fields
Standby
Fields
Tuning Box
Figure 4-3 Selecting a COM Radio for Transmit
COM2 Radio is Selected
on the Audio Panel
Top Section of
the Audio Panel