4.1RADIO STATUS INDICATIONS

•TX–WhenaCOMradioistransmitting,awhiteTX indicationappearstotherightofthecorresponding COM frequency.

•ID – When the Morse code identifier is ON for a NAV radio, a white ID indication appears to the left of the corresponding active NAV frequency. The Morse code identifier can be heard if the corresponding NAV radio is selected on the audio panel.

Figure 4-5 Radio Status Indications

4.2VOLUME

‘VOLUME’ is displayed in place of the associated radio name (i.e., ‘COM1’ or ‘NAV2’) for two seconds after the volume level is last changed. The percentage of maximum volume is displayed in place of the standby frequency selected by the tuning box.

Figure 4-6 COM Volume Level

4.3AUTOMATIC SQUELCH

Automatic squelch can be disabled for a COM radio by pressing the COM Knob to place the tuning box on the desired COM’s standby frequency, then by pressing the

VOL/PUSH SQ Knob.

4.4QUICKLY ACTIVATING 121.500 MHZ

Pressing and holding the COM Frequency Transfer Keyforapproximatelytwo(2)secondsautomaticallytunes the selected COM radio to the emergency frequency.

SECTION 4 – NAV/COM &

TRANSPONDER

4.5OPTIONAL NAV RADIOS

DME Radio (optional)

The DME Tuning Window is displayed by pressing the

DME Softkey.

Figure 4-7 Radio Tuning Window

Change the DME tuning source:

1)From the tuning window,turn the largeFMS Knob to highlight the DME source field.

2)Turn the small FMS Knob to display the selection window. Turn the FMS Knob to select the desired mode and press the ENT Key.

Figure 4-8 DME Selection Window

ADF Radio (optional)

The G1000 does not support tuning of the ADF in Nav III aircraft. ADF tuning is accomplished through the Bendix/King KR 87 ADF Radio. ADF volume must also be adjusted through the KR 87.