On Wed, Oct 16, 2013 at 7:18 PM, Bill Dailey <docdailey at gmail.com> wrote: > Set the fury to output ggtts Did you mean GPGGA? If the Fury is producing RMC sentences then NMEA+PPS (20+22) should work. Some folks recommend the NMEA PPS option (flag1) but in my experience it's less stable than the stand-alone PPS driver.