User Guide
190-00368-06 Rev. A Garmin G1000 Pilot’s Training Guide Instructor’s Reference 15
Ground Lesson 5
COM RADIO AND AUDIO PANEL OPERATION
Objectives
Upon completion of this lesson, the pilot should be comfortable manually and automatically
tuning and selecting communication frequencies, while properly configuring the selections on
the GMA 1347 Audio Panel.
Resources
• G1000 Pilot’s Guide
• G1000 Cockpit Poster
• G1000 PC-based Simulator
Exercise 5.1: COM Operation and Methods of Frequency Tuning
1. Are active frequencies displayed toward the inside or outside of the PFD and MFD in the
NAV/COM Frequency boxes?
Active frequencies are displayed toward the inside of the displays.
2. In what color are active frequencies displayed?
Active frequencies are indicated in green.
3. Which key should be pressed to change between the standby and active frequencies? Draw
the label on this key.
The Frequency Transfer keys are used to transfer the standby and active frequencies for
the selected navigation (NAV) and communication (COM) radios. Refer to the Pilot’s
Guide System Overview section for a depiction of the key.
4. If the COM Frequency Transfer Key is held for two seconds, what occurs?
The emergency COM frequency (121.50 MHz) is tuned in the active field of the selected
COM radio.
5. When manually tuning a frequency, what is the large COM Knob used for? What is the small
COM Knob used for?
The large COM Knob changes the MHz, while the small knob changes the kHz.
6. When the NRST Softkey is pressed on the PFD, a list of the nearest airports appears, with
runway length and tower/CTAF frequencies listed. How can one directly tune one of these
frequencies without having to manually tune it into the COM radio?
1. Press the FMS Knob.
2. Use the large FMS Knob to highlight the desired frequency
3. Press the ENT Key (this places the frequency into the selected COM1 or COM2
standby field based on location of the COM Tuning Box).
4. Press the COM Frequency Transfer Key to place the frequency into the active
field.










