Garmin GMA 350H Pilot's Manual page 14

GMA 350H Audio Panel
The GMA 350H provides three states of marker beacon operation; On,
Muted, and Deselected. The MKR/MUTE key annunciator indicates
when marker beacon audio is selected. Marker beacon audio is not
heard when the annunciator is off or when the annunciator is on with the
marker beacon audio muted.
T M
urning
With the MKR/MUTE annunciator off, press the MKR/MUTE Key to
enable marker beacon audio.
M M
uTing
During marker beacon audio reception, press the MKR/MUTE Key
to mute the audio. The MKR/MUTE annunciator remains lit, but the
current marker tone is silenced. Audio muting deactivates automatically
and marker beacon audio is heard when the next marker beacon signal
is received.
d
eselecTing
To deselect marker beacon audio, press the MKR/MUTE Key twice
during marker beacon reception or once if a marker beacon signal is
not detected.
8
B
arker eacon
B a
arker eacon
M B
arker eacon
Marker Beacon Key
Garmin GMA 350H Pilot's Guide
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190-01134-14 Rev. C