Comparison of Tracker 650 and DVL-75

	Tracker 650	DVL-75
Primary Application	Position hold	Dead reckoning using internal IMU
Secondary Application	Odometry for user's dead reckoning software	Position hold
Built-in IMU	no	yes
Pre-mission IMU calibration maneuvers required	n/a	likely
Support for automatically connecting to MAVlink REST server and sending position hold and sounder messages	yes	yes
Support for sensor fusion with ROV Locator and absolute position output in CeruleanTracker and CeruleanMap	no	yes
Maximum standoff range	20m	40m
Minimum standoff range	0.3m	0.3m
Raw data outputs for user's Kalman filter	yes	yes
Flexible mounting angles with respect to ROV frame	6 orthogonal plus 4 rotations	Any roll, pitch, yaw
Number of sensors	3	4
Ping Frequency	675 kHz	675 kHz
Ping Repetition Rate	10 Hz	5 - 20 Hz