G m a 3 4 0 a u d i o p a n e l p i l o t ’ s g u i d e ®.
Front panel controls 1. Marker beacon lamps 2. Marker beacon receiver audio select/mute button 3. Marker beacon receiver sensitivity indicator led. 4. Marker beacon receiver sensitivity selection button 5. Unit on/off, pilot intercom system (ics) volume 6. Pilot ics voice activated (vox) intercom sq...
On, off, and fail-safe operation the gma 340 is powered off when the left small knob (5) is rotated fully ccw into the detent. To turn the unit on, rotate the knob clockwise past the click. The knob then functions as the pilot ics volume control. A fail-safe circuit connects the pilot’s headset and ...
If the com radios utilize a “transmit interlock” system, the split com function may require that this feature is enabled. Refer to the radio installation manual for guidance. Garmin makes no expressed or implied guarantees regarding the suitability of the split com feature in a given installation. C...
Auxiliary entertainment inputs the gma 340 provides two stereo entertainment inputs: music1 and music2. Music1 is soft-muted during all aircraft radio activity and normally during ics activity. Music2 is a non- muted input. These inputs are compatible with popular portable entertainment devices such...
• pilot mode isolates the pilot from everyone else and dedicates the aircraft radios to the pilot exclusively. The copilot and passengers share communication between themselves but cannot communicate with the pilot or hear the aircraft radios. • crew mode places the pilot and copilot on a common ics...
Marker beacon receiver the marker beacon is used as part of an ils approach and in certain instances, to identify an airway. In addition to the normal marker beacon functions, the gma 340 provides an audio muting function. The lamps illuminate, and an associated keyed- tone is heard (when mkr audio ...
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