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Field 1: SV Elevation Mask – If the elevation of a satellite (angle above the horizon) is below
this value, the GPS200 will not use that satellite in the solution. Units are 1x10
radians. The GPS200 always indicates "data not available" for this field, indicating that
this parameter is not user configurable.
2: PDOP Mask – If the PDOP exceeds this value, the GPS200 will indicate "No GNSS
fix" or "Dead Reckoning Mode" in PGN 129029. Units are 1x10
GPS200 always indicates "data not available" for this field, indicating that this
parameter is not user configurable.
3: PDOP Switch – If the PDOP exceeds this value, a GPS receiver will switch from 3D
to 2D mode. For the GPS200, this field always contains a value of 0x7FFF, indicating
that the GPS200 will always attempt to operate in 3D mode. Units are 1x10
The GPS200 always indicates "data not available" for this field, indicating that this
parameter is not user configurable.
4: SNR Mask – If the SNR of a satellite is below this value, the GPS200 will not use that
satellite in the solution. Units are 1x10
satellites. The GPS200 always indicates "data not available" for this field, indicating
that this parameter is not user configurable.
5: GNSS Mode – This field is used to indicate the desired mode of operation: 0 = 1D, 1
= 2D, 2 = 3D, 3 = Auto (factory default), 4-5 = Reserved, 6 = Error, 7 = Null. The
GPS200 always returns a value of 3 (Auto) for this parameter, which is not user
configurable).
6: DGNSS Mode – This field is used to indicate the desired mode of operation of DGNSS
(0=do not use SBAS, 1 and 3=Use SBAS when available). The factory default value
for this field is 1 (use SBAS when available).
7: Position / Velocity Filter – This field always contains a value of 0x3, indicating that the
GPS200 does not allow configuration of the position / velocity filter.
8: Max Correction Age – This field always contains a value of 0xFFFF, indicating that the
GPS200 does not allow configuration of the maximum age of SBAS correction data to
be used.
9: Antenna Altitude for 2D Mode – This field is used to indicate the antenna altitude for
the GPS200 to use when operating in 2D mode in units of 1x10
for this field is 0.0 m, and is not user configurable.
10: Use Antenna Altitude for 2D Mode – This field is used to indicate whether the GPS200
will use Antenna Altitude (Field 9) when operating in 2D mode. The GPS200 returns
a value of 1 for this parameter, indicating that it will always indicate an Antenna Altitude
of 0.0m when operating in 2D mode. This field is not user programmable.
GPS200 NMEA 2000
PGN 126208 – NMEA Command Group Function – GNSS Control Status
This will change the configuration of the GPS200.
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 129538, which denotes the
GNSS Control Status PGN.
Revision 1.3
®
Received PGNs
Appendix A – NMEA 2000
-2
dB. The factory default is to use all available
®
Interfacing
-2
(unitless). The
-2
(unitless).
-2
m. The factory default
Page A5
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