Adjusting Intercom Volume

GMA 350 Audio Panel

Blue-Select Mode (Telephone/Entertainment Distribution)

The Blue-Select Mode is entered by pressing the small knob when the volume control cursor (flashing white annunciator) is not active. If the volume control cursor is active, press the small knob twice. The first press will cancel the volume control cursor, the second will activate Blue-Select Mode.

The annunciator over the Key will be flashing blue. Any combination of the annunciators over the PILOT, COPLT, and PASS buttons may be blue. Select the desired button to turn the blue annunciator on or off to distribute the telephone/entertainment audio to selected crew/passenger positions. Turn the large knob to select MUS1 or MUS2 and select the crew positions to receive the music audio.

Selecting any key other than PILOT, COPLT, PASS, MUS1, MUS2,

or will cancel Blue-Select Mode. Pressing the small knob will also cancel Blue-Select Mode. After approximately ten seconds with no input, the Blue-Select Mode will automatically cancel.

When the cursor is on PILOT, COPLT, or PASS, the Volume Control Knob adjusts the intercom volume for the listener.

Adjusting Manual Squelch

When the cursor is on MAN SQ, the Volume Control Knob adjusts the ICS Squelch Threshold (the volume level that must be exceeded to be heard over the intercom).

190-01134-12 Rev. D

Garmin GMA 350 Pilot’s Guide