NAVIOR-24S
™
CHAPTER IV
Operation and Performance
59
NAVIOR-24S ™
Revision
V1.00 20.05.2008
DGNSS Operating Modes
The default mode for the NAVIOR-24S GPS/GLONASS receiver is off by Differential DGNSS
Operating Mode. The receiver supports two DGNSS Modes: On, Off. The mode may be changed by
issuing the appropriate BINR command (see Appendix A for details).
DGNSS Operation
The NAVIOR-24S GPS/GLONASS receiver is capable of accepting and decoding RTCM-104 data,
the industry standard protocol for differential correction data. The receiver is configured to accept
RTCM SC-104 correction data via any Port. Previously mode DGNSS On must be set for accepting
and decoding RTCM-104 data and for setting the necessary adjustments of selected port. All
necessary adjustments are executed on protocol BINR (0Bh) or Soft Tools BM_Ctrl.
DGNSS On
When DGNSS On is selected, the NAVIOR-24S GPS/GLONASS receiver will only provide
differential GPS/GLONASS solutions. If the source of the correction data is interrupted or becomes
invalid, the receiver will suspend output of all position, course and speed data. When a valid source
of correction data is restored, the receiver will resume outputting data.
DGNSS Off
When DGNSS Off is selected, the NAVIOR-24S GPS/GLONASS receiver will not provide
differential GPS/GLONASS solutions even if a valid source of correction data is supplied. In this
mode, the receiver will only supply standard GPS position data.