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Revision 1.2 Appendix A – NMEA 2000
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Interfacing Page A7
Field
Number of
Commanded
Parameter
Name of Commanded
Parameter
Size
(Bytes)
1
2
4
5
6
9
10
SV Elevation Mask
PDOP Mask
SNR Mask
GNSS Mode
DGNSS Mode
Antenna Altitude
Use Antenna Altitude
2
2
2
1
1
4
1
Fields 6 and 7 are repeated pair wise until all parameters to be modified have been specified.
PGN 126208 – NMEA Command Group Function – Maretron Proprietary Restart GPS
Engine
This will force the GPS100 to restart its GPS engine without performing a full reset of the unit.
Field 1: Complex Command Group Function Code (8 bits) – set this field’s value to 0x01,
which denotes a command PGN
2: Commanded PGN (24 bits) – set this field’s value to 126720, which denotes the
Maretron proprietary PGN
3: Priority Setting (4 bits) – set this field’s value to 0x8, which indicates to leave priority
settings unchanged
4: Reserved (4 bits) – set this field’s value to 0xF, which is the value for a reserved field
of this size
5: Number of Pairs of Commanded Parameters to Follow (8 bits) – set this field’s value
to 0x4, indicating that four parameters will follow
6: Number of First Commanded Parameter (8 bits) – set this field’s value to 0x1
7: Maretron Vendor ID and Industry Code (16 bits) – set this field’s value to 0x9889
8: Number of Second Commanded Parameter (8 bits) – set this field’s value to 0x02
9: Product Code (16 bits) – set this field’s value to 0x6F0, which is the NMEA 2000
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product code for the GPS100.
10: Number of Third Commanded Parameter (8 bits) – set this field’s value to 0x03
11: Software Code (16 bits) – set this field’s value to 0x0001, which is the identifier for
this version of the Maretron proprietary protocol
12: Maretron Command (8 bits) – set this field’s value to 0x30, which will force the GPS
Engine to restart as selected by the following field.
13: Restart mode (8 bits) – set this field’s value to select the restart mode, 0=Factory
restart, 1=Cold start.
PGN 126208 – NMEA Command Group Function – Maretron Proprietary SBAS
Parameter
This PGN will configure usage of SBAS (WAAS) satellite data.
Field 1: Complex Command Group Function Code (8 bits) – set this field’s value to 0x01,
which denotes a command PGN