Correction.GNSS
Quick Guide: GNSS Constellation Selection
This setting determines which global satellite systems your receiver will track and use to calculate its position.
Unlike the "Fix type" menu, this is a single-choice list where you select a specific combination of satellite networks:
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GPS: Uses only the American GPS system.
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GPS + [BDS / GLO / GAL]: Uses GPS plus one additional system (BeiDou, GLONASS, or Galileo).
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GPS + GLO + GAL: Uses three major systems.
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GPS + GLO + GAL + BDS: Uses all four major global satellite system.
(Don't forget to press Set to apply your choice).

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