Chuck Richards held a demo of the Didson Sonar and the Mesotech SM2000 last September with a number of customer on hand to witness these two sonar's in action. In the picture below from the left to right are Charlie with C. A. Richards and Assoc., Bob Asplin one of the founders of Kongsberg Mesotech, Lou Cranek, CEO The Institute of Robotics and Chuck Richards, Vice President C. A. Richards and Assoc.