Leica GR30 Online Help Manual page 110

SBAS -DGPS
Use SBAS for DGPS
Satellite to be preferred
The availability of the different satellite systems depends on the installed receiver options.
When activating a satellite system, the default frequencies are activated if the
corresponding option key is available. Default frequencies are the frequencies used for
position calculation. Non default frequencies can be activated manually. When
deactivating a satellite system, all frequencies of the respective satellite system are
deactivated.
Activate / deactivate the check boxes to track the different signals of each satellite system.
All signals other than L1 are only available if the corresponding option key is installed.
The Tools / Options page provides an overview of all purchased options that are currently
activated on the receiver and a detailed description of all available options.
If needed, specify a certain SBAS satellite systems in the Track sat. syst. list box or leave
at Automatic to have the receiver automatically select the SBAS system. Alternatively,
select All visible to use all SBAS satellite systems that are tracked by the receiver.
Test mode must be selected if the desired SBAS system is not yet
fully operational.
It is suggested that the Automatic setting is used. This ensures
that the receiver automatically selects the SBAS system which is
valid for the current position of the receiver.
Description
Activate to use SBAS to gain a DGPS position
When using SBAS corrections for calculating a DGPS position, it
is important to select a satellite in the Satellite to be used list
box that belongs to an SBAS system that is valid within the area
of your reference station.
Use the Satellite to be preferred list box to select a specific SBAS satellite to be
preferred for obtaining a DGPS solution.
If a specific system is selected in the Track sat. syst., select a satellite from that
system in the Satellite to be used list box.
If SBAS is used to calculate a Differential code position solution, SBAS observations
are also written to the LB2 data stream and into all logged MDB and RINEX files.
Deactivate the Use for DGPS list box to calculate a position without using SBAS
corrections.
If one or more SBAS satellites are tracked but not used for DGPS, the SBAS
observations are still contained in the LB2 stream as well as in MDB and RINEX files.
If All visible is selected in the Track sat. syst. list box, all visible
SBAS satellites are tracked. Up to 4 SBAS satellites can be
tracked at one time. Since it cannot be predicted which satellites
6: Context sensitive help
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