There are two basic types of sonars…Searchlight Sonars and Omni Sonars

Please note: Sonar training is no longer available

Which sonar you buy is related to the potential payback from the use of them. I'd say that for salmon seining, for example, buying an Omni sonar is going to be harder to justify than buying a searchlight sonar. In fact, there are many excellent salmon fishermen who do not use sonar at all.

For most school fish, like sardines, anchovy, herring, mackerel, tuna, and menhaden, a sonar is a must, in my opinion.

*For more details on the process, and if using a sonar could benefit you, head to Sonar Information.