The pin 33 of C16QS is the GNSS antenna interface.
The C16QS has a dedicated antenna L1, it supports GPS, GLONASS, BEIDOU, QZSS, Galileo and NAVIC.
SBAS Ranging support available
In order to facilitate antenna debugging, a π-type matching circuit needs to be added to the motherboard and a
50-ohm impedance line is used.
NOTE
• The GNSS antenna needs to maintain a certain distance from the main antenna.
• The GNSS antenna has two antenna connection modes:
Passive antenna mode and Active antenna mode. An external power supply is required while using
an Active antenna, as the module cannot provide power to GNSS Active antenna.
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