... issued a Request for Information (RFI) for a new system called the Containerised TheatreLevelSonar (CTLS) ... In active mode, the sonar will emit low-frequency sound waves to identify and track targets.
In addition to offering guided fishing trips to the public, I have, for over two decades now, also offered on-the-water sonar training. To put this in perspective, I began training anglers on how to get the most from their sonar ....
Just an angler, a fishing pole and maybe thousands of dollars worth of sonar equipment offering an exact image of what that walleye or bass is doing in the watery depths below ... HOW FISHING SONAR WORKS ... SONAR MAY MAKE LITTLE DIFFERENCE.