TW5340 User Manual
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SBAS -2 Parameter: Service
See Table 5 column 1
9.6
TRACKING
2 D Fix:
( default off)
Enables a two-dimensional GPS position fix that includes only horizontal coordinates (no
GPS elevation). It requires a minimum of three visible satellites.
Walking mode: (default off)
The receiver engine uses different filters in walking mode i.e. does not include velocity
in position calculations.
Stop Detection:
(default on)
The receiver engine adjusts filters when a stop condition is detected. This feature should
be disabled when doing ‘wander’ testing.
High Dynamics:
(default off
)
The receiver engine uses different filters for high acceleration applications.
Must be enabled when the fix rate is >5Hz.
Acquisition Mask Angle (degrees):
The elevation angle of a GNSS satellite below which data will be ignored when acquiring
a fix. A lower mask angle may lead to faster acquisition.
Positioning Mask Angle:
The elevation angle of a GNSS satellite below which data will be ignored once a fix has
been acquired. Once a fix has been acquired the mask angle can be increased so that
only high satellites are tracked. By setting this parameter to a value less than the
acquisition mask angle the satellite will always be used in a fix once it is acquired.
Having larger values helps reduce multipath errors.
