Do you understand your sonar unit?  Can you interpret what the display is showing you?  What is SONAR?  In Understanding Sonar and Interpreting the Display DVD, Professional Walleye Champion Bruce Samson, M.D., explains the basics to understanding sonar units and how to interpret what the display is showing you.  Understanding your graph and learning how to read the screen will definitely increase the number of fish you catch.

Understanding Sonar and Interpreting the Display DVD has five sections: Introduction, How it Works, Settings, Interpreting the Display, and Summary.  In the DVD, Doc Samson explains that Sonar (SONAR stands for SOund Navigation And Ranging) has two parts, the transducer that transmits sound and receives sound while the display show returned echoes as distance from the transducer and strength of the returning echoes.  Other topics include what does the transducer see, boat speed and arches, how boat speed affects fish arches, fish size, suspended and tight fish, graph sensitivity,  sensitivity setting, grayline and colorline, color vs. black and white, optimal colorline, interpreting the display, bottom types,  bottom confirmation, using an underwater camera, and software tools. One extremely informative topic Doc Samson covers in Understanding Sonar and Interpreting the Display is interpreting what is being displayed on the sonar screen.  It’s important for an angler to be able to understand what are weeds, trees, bottom content, thermocline, or baitfish.  Another topic bottom confirmation, Doc Samson explains how he uses Fireline and a 1-ounce sinker rigged with some type of bait to lift and drop to feel what the sonar unit is displaying. 

Understanding Sonar and Interpreting the Display by Bruce Samson, M.D.(http://www.hightechfishing.com/) is the first in a series of educational and informative DVD’s that will help anglers understand their sonar units and catch more fish.