Features

GNCASTER Features

GNCASTER is fully compatible to NTRIP 1.0, including the following features:

  • accept and manage NTRIP source (network) connections over TCP (typically RTCM data streams from GNSMART RTCM_OUT process)
  • accept and manage NTRIP client (rover user) connections over TCP (typically RTCM compatible GNSS rover equipment)
  • accept NTRIP caster administrator access
  • source authentication using login/password
  • client authentication using login/password

Additional features of Geo++ GNCASTER:

  • accept individual (i.e. non broadcast) source and client, e.g. VRS client
  • accept and manage NTRIP source (network) over UDP
  • accept and manage NTRIP client (rover user) over UDP
  • operate as source client (GNCASTER establishes, as a client, communication to NTRIP source server)
  • read user database from LGN file format
  • buffer quasi-static data (e.g. coordinates, antenna information, ephemeris) for immeiate delivery to new clients
  • cascading casters
  • write accounting information in various formats
  • distribution of
    • RTCM data
    • receiver raw data
    • GNSMART State Space Representation (SSR) data
    • GNSMART internal data structures (DGP)

Source Client

A Client Source is a process which works as a TCP (or UDP) client to provide a GNSS data stream to the GNCASTER. The process needs to know the ip-address and ip-port number of the GNCASTER to initiate the communication. The data stream itself goes from source to caster.

Source Server

A Server Source is a process which works as a TCP (or UDP) server to provide a GNSS data stream to the GNCASTER. The process needs to know the ip-address and ip-port number of the GNCASTER to initiate the communication. The data stream itself goes from source to caster.

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