4.1RADIO STATUS INDICATIONS

•TX – When a COM radio is keyed, a white TX indicationappearstotherightofthecorresponding COM frequency.

•ID – When the Morse code identifier is ON for a NAVradio,awhiteIDindicationappearstotheleft of the corresponding active NAV frequency. The Morsecodeidentifiercanbeheardifthecorresponding NAV radio is selected on the audio panel.

SECTION 4 – NAV/COM &

TRANSPONDER

4.5OPTIONAL NAV RADIOS

DME Radio (optional)

The Tuning window is displayed by pressing the DME softkey.

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.

Figure 4-7 Radio Tuning Window

To change the DME tuning source:

1.From the Tuning window, turn the large FMS 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 4-6 COM Volume Level

4.3AUTOMATIC SQUELCH

Automatic squelch can be disabled for a COM radio by pressing the COM knob to select the desired COM subwindow, then by pressing the VOL/PUSH SQ knob.

4.4QUICKLY ACTIVATING 121.500 MHZ

Pressing and holding the COM Frequency Togglekey forapproximatelytwo(2)secondsautomaticallytunesthe selected COM radio to the emergency frequency.

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.