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Garmin G1000 Cockpit Reference Guide for the DA40/40F
4-3
SECTION 4 – NAV/COM &
TRANSPONDER
4.1 RADIO STATUS INDICATIONS
• RX – When a COM signal is received, a white ‘RX’
appears by the active COM frequency during signal
reception.
• TX – When a COM radio is transmitting, a white ‘TX’
indication appears to the right of the corresponding
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
4.2 VOLUME
‘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
4.3 AUTOMATIC 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.
4.4 QUICKLY ACTIVATING 121.500 MHZ
Pressing and holding the COM Frequency Transfer
Key for approximately two (2) seconds automatically tunes
the selected COM radio to the emergency frequency.
4.5 OPTIONAL NAV RADIOS
The ADF/DME Tuning Window is displayed by
pressing the ADF/DME Softkey (if no ADF is installed,
the softkey will be labeled DME).
ADF Radio (optional)
Tune the ADF:
1) From the tuning window, turn the large
FMS
Knob to highlight the ADF tuning field.
2) Turn the small
FMS
Knob to enter the first
digit.
3) Turn the large
FMS
Knob to select the next
desired digit field. Turn the small
FMS
Knob
to again select the desired digit.
4) When the desired frequency is entered press
the
ENT
Key to transfer the frequency into the
active field.
5) Turn the large
FMS
Knob to select the MODE
field. Turn the small
FMS
Knob to select ADF
or BFO.
6) Turn the large
FMS
Knob to select the volume
field if desired. Turn the small
FMS
Knob to
adjust the ADF volume to the desired level.
7) Press the
FMS
Knob to exit all the fields.
Figure 4-7 ADF/DME Tuning Window