Garmin 347 Pilot's Manual page 17

• Pilot and Copilot MIC volume and speaker levels are
adjustable.
• ICS Muting option stops playing Music 1 during ICS
activity.
• Enable or disable DME and ADF Input.
• Enable or Disable Split COM function.
• Enable or Disable COM 3 function.
• Enable or Disable the telephone channel
• Enable or Disable Speaker function.
• Adjust the volume level of Music 1 and Music 2,
Unswitched 1, Unswitched 2, Unswitched 3 and Alti-
tude Warning
190-00325-00 Rev. A
CAUTION: When the GMA 347 Audio panel is turned
OFF or inoperative, certain autopilots will not oper-
ate. No warning tone is supplied when the autopilot
disengages, and the middle marker sense signal is not
supplied.
Garmin GMA 347 Pilot's Guide
Operation
15