Blog Posts
How to Read Drop-Offs with a Portable Fish Finder
A practical method for recognizing drop-offs and depth transitions on a portable sonar display from shore, dock, kayak or small boat.
Hard Bottom vs Soft Bottom on a Portable Fish Finder
How to compare hard and soft bottom returns on a portable fish finder using repeatable passes and visual confirmation.
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.
Portable Fish Finder Battery Checklist: Four AAA Cells
A practical battery and power checklist for a handheld fish finder that runs on four AAA cells.
Fish Finder False Returns: Weeds, Bubbles or Fish?
Learn how common underwater conditions create confusing sonar returns and how to check them without guessing.
Where to Place a Portable Fish Finder Transducer
A practical guide to positioning a portable sonar transducer for steadier readings from kayaks, small boats, docks and ice holes.
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.