Garmin GMA 347 - Manual (Page 16)

Garmin GMA 347 Pilot’s Guide 190-00325-00 Rev. B
14
Operation
GMA 347 PROGRAMMING OPTIONS
Programming options include variable configurations
that can be arranged by a Garmin authorized service center.
Options include a crew operable pushbutton or toggle switch,
and fixed configurations that cannot be changed by the crew.
Configurations include the following:
• Com Swap. An external pushbutton Swaps Com 1
MIC and Com 2 MIC.
• External Marker Beacon Lights. The GMA 347 can
drive another set of marker lamps on the instrument
panel.
• Marker Beacon Volume and sensitivity are adjustable.
• Deactivate MASQ TM (master squelch). Software
configuration enables/disables master squelch. Level
of MASQ
TM is also adjustable.
• PA Muting option enables/disables PA output.
• Record Playback. Two separate options: An external
pushbutton activates voice recorder playback. Also,
the recorder can be controlled with a toggle switch to
enable/disable recording.
• Auxiliary audio. An external switch controls the
auxiliary audio input.
• Enable or Disable Internal Sidetone. Software
configuration enables/disables Internal sidetone.
• Enable or Disable COM muting on transmit and COM
muting on receive. When configured this way, audio
on unselected COMs is muted while the selected COM
is transmitting or receiving audio.
• Record COM 2. Allows recording of Copilot audio in
place of Pilot audio (COM1) during Split Com mode.
• Pilot and Copilot MIC volume levels over Speaker
(during PA mode) are adjustable.