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Customizing Your Device
Montana 600 Series Owner’s Manual 35
• —sets the voice
for the vocal prompts.
• —sets the format of the
serial interface:
◦ —allows you
to use the device USB port with
most NMEA 0183-compliant
mapping programs by creating a
virtual serial port.
◦ —Garmin
proprietary format used to
exchange waypoint, route, and
track data with a computer.
◦ —provides
standard NMEA 0183 output
and input.
◦ —provides simple
ASCII text output of location
and velocity information.
◦ —Radio Technical
Commission for Maritime
Services allows the device
to accept Differential Global
Positioning System (DGPS)
information from a device
supplying RTCM data in an
SC-104 format.
• —allows you to
select the type of AA battery you
are using (page 4). This setting
is disabled when the lithium-ion
battery pack is installed.
Display Settings
Select > > .
• —adjusts the
length of time before the backlight
turns off.
: To adjust the backlight
brightness, see page 6.