Hardware
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F180R MOTION Sensor User and Reference Guide
3.5.2.2.6 HDT
The NMEA - HDT string contains true heading in degrees.
Figure 34: NMEA - HDT Format
Note that, in the case of the true heading field, the system adds leading digits as required.
Also, note that commas separate all items, including null fields.
3.5.2.2.7 PASHR
The PASHR sentence contains UTC time, heading, pitch, roll and heave measurements.
Accuracy data for the measurements is also included.
Figure 35: PASHR String
3.5.2.2.8 PPS
The PPS (Pulse Per Second) is a non-standard NMEA message which is useful for integrating
the F180R System with other devices. This message contains useful information such as the
PPS count, the UTC time of the current PPS, and other time-related information.
Figure 36: NMEA PPS string