Defining searchlight sonar
What does the term "Searchlight" refer to when talking about sonars?
The term "Searchlight" means a sonar with a narrow transmit beam. This beam width usually ranges from 6 to 15 degrees depending on frequency. The transducer is mechanically trained (or aimed) to cover an area defined by the operator. Searchlight sonars can be found within Sonar under the Products tab on the top navigational bar.