Blog Posts
Fish Finder Sensitivity Guide: Tune Returns Without Losing Fish
A step-by-step method for tuning portable sonar sensitivity so clutter decreases without erasing useful fish and bottom returns.
Fish Finder Cone Angle: What a 45° Sonar Beam Shows
Understand how a 45-degree sonar cone changes with depth and how to interpret fish, bottom and structure on a portable fish finder.
Portable Fish Finders in Shallow Water: Read the Limits
Understand shallow-water sonar coverage, sensor placement and fish symbols. Get practical guidance for a portable 200kHz fish finder with a 45° beam.