$--GSA | $--GSV | $--RMC

$GPGSA – GNSS DOP and Active Satellite

GSA – GNSS DOP and Active Satellites GPS receiver operating mode, satellites used in the navigation solution reported by the GGA or GNS sentence and DOP values.

Format: $--GSA,a,x,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,u.u,v.v,z.z*hh<CR><LF>

$GPGSV – GNSS Satellites in View

GSV – GNSS Satellites in View Number of satellites (SV) in view, satellite ID numbers, elevation, azimuth, and SNR value. Four satellites maximum per transmission.

Format: $--GSV,x,u,xx,uu,vv,zzz,ss,uu,vv,zzz,ss,…,uu,vv,zzz,ss*hh<CR><LF>

$GPRMC – Recommended Minimum Specific GNSS Data

RMC – Recommended Minimum Specific GNSS Data Time, date, position, course and speed data provided by a GNSS navigation receiver.

Format: $--RMC,hhmmss.sss,x,llll.lll,a,yyyyy.yyy,a,x.x,u.u,xxxxxx,,,v*hh<CR><LF>