1. Michael Dix Measutronics Corporation Dredge Positioning Systems: Types of Hardware Sensors Being Used and Why

2. Measutronics Guidance Systems, Design, and Integration Dredging, Hydrographic Survey, Marine Construction, ROV, and Underwater Imaging GPS, Motion Sensors, Software, etc. On-site Installation and Training

3. Positioning Systems Cutterhead Dredge Clamshell Bucket Crane Excavator

4. Positioning Sensors GPS vs. GNSS DGPS vs. RTK Optical

5. Motion Sensors Tide Gauge Pressure Sensor Inclinometer

6. Software and Communications Software Radios Internet

7. Cutterhead Dredge 1 1 2 2 3 3 4 4 LOCATION GRADE POSITION & HEADING / PRECISION RTK RTK BASE STATION / TIDE GAUGE DUAL AXIS INCLINOMETER PRESSURE SENSOR / INCLINOMETER SOFTWARE 5 5

8. Pressure Sensor -or- Inclinometer For Depth Measurement Cutterhead Dredge GPS Antenna 1 - Position GPS Antenna 2 - Heading GPS Receiver with Radio (mounted in cab) Tablet PC with Dredging Software (mounted in cab) Dual Axis Inclinometer measuring Pitch/Roll of Dredge Platform RTK Base Station OR Tide Gauge with Radio (on land) Note: Equipment location in diagram is intended to represent its function. Actual location may be different. ( ( ( ( ( ( ( ( ( 1 1 1 1 2 2 3 3 4 4 5 5

9. Clamshell Bucket Crane 1 1 2 2 3 3 4 4 LOCATION GRADE FOR BARGE POSITION & HEADING RTK GPS FOR BOOM TIP ROTATIONAL ENCODER FOR CABLE OUT INCLINOMETER FOR BOOM ANGLE SOFTWARE 5 5

10. Clamshell Bucket Crane 1 1 1 1 2 2 3 3 4 4 5 5

11. Excavator 1 1 3 3 PECISION RTK POSITION & HEADING INCLINOMETERS FOR BOOM, STICK, BUCKET SOFTWARE 5 5 4 4 DUAL AXIS INCLINOMETER 2 2 RTK BASE STATION

12. Excavator 1 1 3 3 4 4 5 5 2 2

13. Questions?