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SPEAKER

All of the radios can be heard over the cabin speaker. Pressing the SPKR

Key selects and deselects the cabin speaker. Speaker audio is muted when

the PTT is pressed. Certain aural alerts and warnings (autopilot, trafﬁc,

altitude) are always heard on the speaker, even when the speaker is not

selected.

ASSENGER

Press and hold the SPKR Key for 2 seconds to initiate Passenger

Address Mode. PA Mode is annunciated by a rapid blinking of the

SPKR annunciator. When in PA Mode the crew can use the PTT "Push-

to-Talk" button to deliver announcements over the speaker, to the

passenger headsets, or both depending on conﬁguration.

190-01134-12 Rev. K

Manual Squelch Annunciator;

Off for Automatic Squelch, On

Volume/Squelch Control

DDRESS

ODE

Garmin GMA 350/350c Pilot's Guide

GMA 350/350c Audio Panel

for Manual Squelch

Volume or Manual Squelch

Speaker Key

(PA M

)

ODE

Relative Volume/

Squelch Scale

Cursor