1. The system shall provide six-degree positions and orientation data. 2. The system shall provide accurate altitude, heading, heave, pitch and roll, position, and velocity data. 3. The system shall use a high-resolution inertial unit (IMU), use a global navigation satellite system (GNSS), and a small form factor PCS. 4. The system shall have ethernet input and output ports. 5. Time, system status, position, altitude, velocity, track, speed, raw IMU and GNSS data shall be available at this port. 6. The system shall have a display port, UDP protocol. 7. The system shall have a TCP/IP control port.. 8. The system shall have ports that provide data logging to an external device. 9. The system shall have user assignable serial RS 232 input/output ports. 10. The system shall have a NMEA ASCII output that provides system output parameters at a 50 Hz maximum rate and shall be user selectable on each port. 11. The system also shall have a high-speed attitude output (attitude, heading, speed). 12. Output and rates shall be configurable for each port. 13. The system shall have auxiliary GNSS 1 Hz NMEA Standard ASCII inputs. 14. GNSS correction inputs shall accept RTCM V2., V3., CMR, CMR+, and CMR+. 15. These input rates shall be at least 1Hz. 16. The system shall accept digital I/O at no less than 1 PPS. 17. The delivery arrangements and transportation costs shall be the vendor’s responsibility. 18. The GNSS-IMU inertial positioning systems shall be delivered to USM’s Marine Research Center, 1030 30th Ave Gulfport, MS 39501.