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Garmin Cessna Caravan G1000 Руководство пилота
6A.1 INTRODUCTION
This manual provides the pilot with a description of
the GMA 1347 and its operating instructions.
The Garmin GMA 1347 is an audio control panel and
marker beacon system. Pressing the audio panel keys
controls audio selection of COM, NAV, telephone and in-
tercom. LED annunciators indicate when a key function
is selected.
NOTE: This audio panel is intended to be used
only as part of the G1000 Integrated Cockpit
System.
The GMA 1347 includes a six-position intercom sys-
tem (ICS) with electronic cabin noise de-emphasis and
two stereo music inputs. Separate knobs for the pilot and
copilot/passenger control intercom audio level. The in-
tercom provides four selectable modes of isolation (All,
Crew, Pilot, Copilot).
A cabin speaker is available to listen to selected aircraft
radios. MASQ (Master Avionics Squelch) processing re-
duces ambient noise from the avionics inputs.
Each microphone input has an automatic squelch
threshold. Manual squelch is available by pressing the
MAN SQ key.
190-00378-02 Rev. A
The GMA 1347 provides a digital recorder that can
play back up to two and a half minutes of COM audio.
Recording is automatic when a COM signal is received.
Playback is controlled by pressing the PLAY key. Play-
back can be stopped by pressing the MKR/MUTE key.
The unit controls marker beacon receiver audio and
features marker beacon audio muting.
As part of the G1000 Integrated Cockpit System, the
GMA 1347 also operates the display reversionary mode.
Two GMA 1347 audio panels can be mounted in an
aircraft. In dual panel installations, two (2) units can be
connected to the same radios.
Garmin G1000 Audio Panel Pilot's Guide
INTRODUCTION
CAUTION: When the GMA 1347 Audio panel is
turned OFF or is inoperative, certain autopilots
are affected. No warning tone is supplied when
the autopilot disengages and the middle marker
sense signal is not supplied.
6A-1