Standard Horizon MATRIX GX2400GPS Owner's Manual page 27

The MMSI can be input only once, be careful not to input the incorrect
MMSI number.
the USER MMSI and ATIS CODE
Programming the MMSI
INFO
FINISH
TRIAL MODE − Click here for more information
MENU/SET
DIAL/ENT
BACK
MMSI INPUT
SELECT
FINISH
OK
WARNING
MENU
MMSI/POS
SELECT
SELECT
NOTE
16.9.1 Reset
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