Kayak Sonar Discussion

[Fishing619]

What is the difference on FF and sonar?
Or why do we need the two of them.

[chris138]

Originally Posted by Fishing619

What is the difference on FF and sonar?
Or why do we need the two of them.

FF is a type of sonar. I use the two words interchangeably so as not to be so repetitive. I will also call it a "meter" or "sounder" sometimes... but its all the same essentially.