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190-02327-03 Rev. C Pilot’s Guide 2-51
Intercom Setup
Setup controls allow you to access:
• Communication modes between pilot, co-pilot, and passenger
• Distribution and mute options for two music interfaces
• Distribution and volume of phone calls
VOLUME AND SQUELCH ADJUSTMENTS
Volume and squelch may be set separately for the pilot, co-pilot, and passenger
intercoms.
To set volume and squelch levels, tap Pilot VOL/SQ, Co-Pilot VOL/SQ, or
Passenger VOL/SQ.
Directional keys increas
e or decrease volume and squelch.
Tapping Auto Squelch allows the unit to set squelch level automatically.
Music Setup
The GMA 35 provides two music interfaces. Select Music 1 or Music 2 to set:
• Who hears music
• When to mute music
• Music volume
Passengers cannot transmit over the active COM radio, even if equipped with a
PTT key.
At every power cycle, the “Mute music during radio” selection is active.