GPS-SpeedSailing
 Accuracy levels
 

 SPORT
1hz NMEA/binary data
minimum 5 satellites acquired
maximum HDOP 4
analysis
GPSAR, GPSRESULTS
horizontal precision estimate 2 meter

COMP
 5 hz binary data
dual gps system, base station and rover
minimum 5 satellites acquired
maximum HDOP 4
post processing RooSpeed
horizontal precision estimate 0.1 meter


WSSRC RECORD
10hz TRIMBLE data
dual gps system, base station and rover
minimum 5 satellites acquired
maximum HDOP 4
kinematic post processing TRIMBLE
horizontal precision estimate 0.1 meter