Lowrance electronic LVR-850 - Manual (Page 27)

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The example shows the MMSI Data 987776510 being entered.
To change or edit MMSI data, select a FL location and press the MEM
key to change the data. After inputting the 9-digit MMSI, hold down
the
CALL key for 5 seconds to store the new MMSI.
DSC Monitor
To be sure the DSC Monitor mode is on, hold down the
CALL key for 5
seconds to toggle the DSC Monitor mode off and on. It must be on for
your radio to receive a DSC call. The
DSC MON ANNUNCIATOR
will be dis-
played onscreen, if Ch. 70 is being accessed. Since there is no independ-
ent Ch. 70 receiver, the radio normally monitors Ch. 70 and checks
other channels on a regular basis to detect a squelch break. This
method ensures the radio will acquire the most DSC calls possible.