There are too many NMEA messages coming from GNSS in WPC T-GM setup. This can potentially increase the system load and create processing bottlenecks in ts2phc, since the amount of messages may increase when more satellites are visible. At least SA and SV messages should be disabled, as they don't convey any useful time reference information. 

Any    

    100%

    1. Run WPC T-GM configuration
    2. Monitor logs
    3.
    

    SA and SV messages appear

    SA and SV messages should not appear