User visible changes in the firmware version 3.1.3 since version 3.1.2.

                             Highlights.

1. Bug in the processing of SBAS correction data for future GNSS
   (GALILEO for example) has been fixed.

2. In Quattro G3D Locked Status of use External Frequency has been fixed.

3. In Quattro G3D support Serial ports C and D (232/422) has been added.

4. Parameter /par/pos/mode/wd has been added as well as its application.


                      More Detailed Description
                (refer to GREIS for even more details)


                             1. Messages.

No changes.

                            2. Parameters.

2.1 New parameter "Enable SBAS code differential position"

  Name:         /par/pos/mode/wd
  Access:       rw
  Type:         boolean
  Values:       on | off
  Default:      off

  on - when receiver is running in pd or pf and is enable to output
       pd, pf or cd solution, it will output cd solution, if avaialable.

  off - receiver will not output wd solution unless it is running in wd mode.

  This parameter doesn't effect behavior of receiver running in cd, wd or sp modes.

  Note: SBAS code differential mode requires tracking of some SBAS satellite.
        If this requirement is not met, then enabling of this parameter
        will not have any effect.

                             4. Options.

No changes.

                             5. Commands.

No changes.

<END>
