User Guide
Garmin G1000 VHF NAV/COM Pilot’s Guide for Mooney M20M & M20R 190-00445-00 Rev. A4-4
INTRODUCTION
CONTROLS
The NAV Frequency window is controlled by knobs
and keys located to the left side of the display, while the
COM Frequency window is controlled by knobs and keys
located to the right side of the display.
The controls associated with the NAV window are as
follows:
• A
VOL/PUSH ID knob
– Turn to adjust the NAV radio volume level.
– Press to turn the Morse code identifier ON and
OFF.
• A Frequency Toggle
key
– Press to toggle the NAV frequencies between
the active and standby fields.
• A dual
NAV knob
– Turn to tune a NAV frequency in the NAV
tuning box (large knob for MHz; small knob
for kHz).
– Press to toggle the NAV tuning box between
the NAV radios.
Figure 4.1.4 NAV/COM Controls
Frequency Toggle Key
Dual NAV
Knob
Dual COM
Knob
VOL/PUSH
ID Knob
VOL/PUSH
SQ Knob
NAV Controls COM Controls
• Turn to tune in desired
frequencies.
• Press to change tuning box
positions.
The controls associated with the COM window are as
follows:
• A
VOL/PUSH SQ knob
– Turn to adjust the COM radio volume level.
– Press to turn automatic squelch ON and OFF.
• A Frequency Toggle
key
– Press to toggle the COM frequencies between
the active and standby fields.
– Press and hold for approximately two (2) sec-
onds to tune the emergency frequency (121.500
MHz) automatically in the active COM field.
• A dual
COM knob
– Turn to tune a COM frequency in the COM
tuning box (large knob for MHz; small knob
for kHz).
– Press to toggle the COM tuning box between
the COM radios.










