TW5310 User Manual
21
©2011 Tallysman Wireless, Inc.
Confidential
7.1
Parameter Fields
The following configuration parameters can be set and saved:
Baud rate
: Sets the operating baud rate of the TW5310. If this is changed and written
to the TW5310 you will need to change the Configurator baud rate to match.
Options:
Output on fix instead of UTC second
:
The TW5300 will immediately output NMEA sentences on acquiring a fix
Enable SBAS
:
When set and if data is currently received from an SBAS satellite, the TW5310
includes the SBAS corrections in the calculated position.
Output version info on reset
:
The TW5310 will outputs its firmware version on reset
Enable 1PPS output
:
1PPS is output when set
1PPS on trailing edge:
1PPS signal by default is output on the leading edge of the pulse. Enabling
causes the 1PPS output on the trailing edge
NMEA Messages
: Select NMEA sentences to be output. The default messages output
are RMC and GGA. If additional messages are output the baud rate will need to be
increased to handle the output of additional data.
GPS Mask Angle ( degrees)
: Sets the subtended elevation angle of a GPS satellite
below which its data will be ignored
GPS Tracking Threshold:
This parameter sets the minimum C/N0 threshold to track a satellite. Any GPS satellite,
with C/N0 less than the threshold value is dropped and the GPS engine searches for
another satellite with a stronger signal level. Increasing the tracking threshold
decreases the GPS sensitivity, but helps prevent errors due to multipath. The value must
be in the range 10 to 40.
