GitHub - hans-mayer/gnss_filter: This script acts as a selective proxy between a local 'gpsd' service and GNSS clients (like xgps). It filters the JSON stream in real-time to display only the user-specified satellite constellations.

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GNSS CONSTELLATION FILTER PROXY
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Description:
    This script acts as a selective proxy between a local 'gpsd' service and 
    GNSS clients (like xgps). It filters the JSON stream in real-time to 
    display only the user-specified satellite constellations.

Main Features:
    * Comprehensive Support: Covers GPS, SBAS, Galileo, BeiDou, IRNSS, 
      QZSS, and GLONASS.
    * Command Line Control: Enable specific systems via flags (e.g., -galileo).
    * Intelligent Defaults: Displays all major systems if no flags are 
      provided to ensure immediate visibility.
    * Real-time Manipulation: Strips unwanted satellite data from 'SKY' 
      messages without affecting the underlying position calculation.
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About

This script acts as a selective proxy between a local 'gpsd' service and GNSS clients (like xgps). It filters the JSON stream in real-time to display only the user-specified satellite constellations.

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