Garmin Fishfinder 240 Blue Pilot's Manual - Gma 240 Audio Panel
190-00917-00 Rev. A
Garmin GMA 240 Pilot’s Guide
11
GMA 240 Audio Panel
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
TM
(master avionics squelch). Enables/disables master
squelch. The threshold level of MASQ
TM
is also adjustable.
•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.