Garmin G1000H Bell 407GX Pilot's Guide - Page 110

AUDIO PANEL AND CNS 4.2 COM OPERATION COM TRANSCEIVER SELECTION AND ACTIVATION NOTE: When turning on the system for use, the system remembers the last frequencies used and the active COM transceiver state prior to shutdown. The COM Frequency Box is composed of four fields; the two active frequencies are on the left side and the two standby frequencies are on the right. The COM transceiver is selected for transmitting by pressing the MIC Keys on the Audio Panel. During reception of audio from the COM radio selected for transmission, audio from the other COM radio is muted. An active COM frequency displayed in green indicates that the COM transceiver is selected on the Audio Panel (MIC1 or MIC2 Key). 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. Active Fields Standby Fields Tuning Box COM2 Radio is Selected on the Audio Panel Figure 4-3 Selecting a COM Radio for Transmit 98 Garmin G1000H™ Pilot's Guide for the Bell 407GX 190-01255-00 Rev. A