HL7810 GNSS/GPS not getting fixed location

[jyijyi]

can you see any NMEA frame with satellite information?

Clarification on Proprietary NMEA Sentence [HL7812.5.5.14.0]

I have used “at+gnssnmea=0,1000,0,4D” and then the $PSGSA is no longer seen. If you don’t want to see it, you can do the same I have searched in the internet, seems $PSGSA is Sony proprietary sentence: Of course you can contact distributor to get the official document for the detail of this NMEA frame