title: Which NMEA sentence should I use
body: <p>The GPS I am using outputs multiple NMEA sentences which I can use for positional data. (GPGGA and GPRMC). Is there a reason I should use one over the other? Should I check them both and compare the data? Can I just pick one to use arbitrarily?</p>
  
  <p>At this point I am only interested in lat/lon and time.</p>
  
  <p>If it's not clear what I'm asking, let me know and I'll try to clarify.</p>