GMA 240 PrOGrAMMING OPTIONs
Programming options include variable configurations that can be
arranged by a Garmin authorized service center. Some options include a
Pilot operable pushbutton or toggle switch or might be fixed configurations
that are unchangeable. Configurations include the following:
• COM Swap - A remote mounted pushbutton is used to transfer the active
microphone between COM1 MIC and COM2 MIC.
• COM muting on transmit - Audio on the other selected radios is muted
while the active transceiver is transmitting.
• Deactivate MASQ
squelch. The threshold level of MASQ
• Internal Sidetone - Enables/disables internal sidetone for radios that
do not provide sidetone during transmission. This can be selected
independently for COM1, COM2, and TEL.
• Crew Isolation - ICS isolation for the crew in place of Pilot isolation.
• PILOT ISO Music - Enable music audio to be heard by the Pilot during
PILOT ISO mode.
• Button Press Tone - Enable beep tone annunciation of button presses.
• Alert Music Mute - Disable music interruption by alert audio. Default
operation is recommended.
• Jack TEL detect - Phone detection is bypassed. Audio panel assumes a
telephone is plugged into the jack whenever the TEL Key is selected.
• Music mute by primary COM only - When RADIO Key is selected,
music is muted only when active COM is receiving audio.
• Enable Keyed ICS - Intercom MIC audio heard only when the
corresponding ICS Key for the MIC position is pressed.
• Individual volume controls - The volume can be adjusted individually
for each alert input, the rear connector pin TEL audio input, and the front
accessory jack TEL audio input.
190-00917-00 Rev. A
TM
(master avionics squelch). Enables/disables master
Garmin GMA 240 Pilot's Guide
GMA 240 Audio Panel
TM
is also adjustable.
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