TW5210 User Manual rev 1_2
9
©2011 Tallysman Wireless, Inc.
Confidential
5.1
Parameter Fields
The following configuration parameters can be set and saved:
Baud rate
: Not applicable for the TW5210 USB version. Leave as default 4800 baud
Options:
Output on fix instead of UTC second
:
The TW5210 will immediately output NMEA sentences on acquiring a fix
Enable SBAS
:
When set and if data is currently received from an SBAS satellite, the TW5210
includes the SBAS corrections in the calculated position.
Output version info on reset
:
The TW5210 will outputs its firmware version on reset
Enable 1PPS output
: Not applicable for the TW5210 USB version
1PPS on trailing edge:
Not applicable for the TW5210 USB version
NMEA Messages
: Select NMEA sentences to be output. The default messages output
are RMC GGA, VTG,GSA and GSV.
GPS Mask Angle ( degrees)
: Sets the subtended elevation angle of a GPS satellite
below which its data will be ignored. The default is 4:
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.
SBAS PRN
: Set the SBAS satellite number to track.
GGA Decimal Digits:
Sets the number of decimal digits output for lat and long. The
default is 5 but can be changed to 3 or 4
