Figure 6: BNC translating incoming streams to 15 min RINEX Version 3 files.
++Converting RTCM streams to RINEX files requires a-priori information on observation types for specifying a complete RINEX header. Regarding the RINEX Version 2 file header BNC simply introduces all observation types defined in the Version 2 standard and later reports "0" for all observations which are not received. However, following this approach is not possible for RINEX Version 3 files from RTCM Version 3 MSM streams because of the huge number of observation types which might in principle show up. The intended solution for BNC is to start with RINEX Version 3 observation type records read from skeleton files (see section 'Skeleton Extension') and switch to a default selection of observation types when such skeleton file is not available. +
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