NMEA messages

When an M2 is sending NMEA messages via usb to pc, is there a message that will tell if the M2 has a fix?

the GGA message contains fix type.
0 = Invalid, no position available.
1 = Autonomous GPS fix, no correction data used.
2 = DGPS fix, using a local DGPS base station or correction service such as WAAS or EGNOS.
3 = PPS fix, I’ve never seen this used.
4 = RTK fix, high accuracy Real Time Kinematic.
5 = RTK Float, better than DGPS, but not quite RTK.

Thank you.

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