We have a project. When the WIFI module FC20_N is integrated with the GPS, after the actual test WIFI function is turned on, the GPS performance will decrease, and the C/N value will drop by more than 5dB. We tried to short the WIFI antenna feed point directly to the ground, the power supply tried to independently power supply and other methods, and found that the WiFi function only turned on, the GPS performance dropped a lot. Please the Quectel engineer to give some advice and analysis.
thanks a lot,