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Connect fishing terminology with the equipment doing the work. A sonar view, a transducer and a fishing method are different things, even when marketing places them in one bundle.
Fishing buying guides →MarineBrands editorial definitions · Reviewed 5 October 2026 · Examples explain context, not operating procedures.
12 of 12 terms
Also find under: compressed high intensity radiated pulse
A sonar transmission method that sweeps through a range of frequencies within a pulse.
It describes the signal method, not a complete guarantee of image quality for a given installation.
Also find under: down imaging downscan
Sonar producing a detailed view of returns beneath the vessel using a suitable system.
Do not assume that a display supporting the feature includes the necessary transducer in every bundle.
Also find under: reel drag
A reel mechanism that permits line to leave the spool under controlled resistance.
Drag is a reel function; it is not the same as the line’s breaking strength.
A fishing method using an animated lure or jig, often worked through repeated lifts and drops.
This names a method, not permission to use a particular rig in a particular waterway.
Also find under: fishing leader
A length of fishing line between the main line and the terminal tackle.
Select the material and connection for the intended method; its stated strength is not the whole setup’s strength.
Also find under: live scanning sonar
A product category providing rapidly updated underwater views of a selected area.
Compare aiming, mounting, compatible equipment and training rather than treating live as a standardised performance rating.
Also find under: side imaging sidescan
Sonar presenting returns from areas to the sides of the vessel using a suitable system.
Ask which transducer, module and display combination produces the demonstrated view.
Also find under: sounder fishfinder
A system using sound transmitted through water and returning echoes to detect or measure underwater features.
A display image represents processed echoes, not an underwater photograph or confirmed species identification.
The ability of a sonar system to distinguish nearby echo-producing objects as separate returns.
A demonstration should reflect the task and setup you care about, not just a favourable promotional image.
The hooks, sinkers, swivels, lures and other components at the fishing end of a line.
Describe the fishing method and target when discussing a tackle arrangement with a specialist.
A device converting one form of energy to another; sonar transducers transmit sound and receive returning echoes.
Specify the exact model and its display or module compatibility when comparing a fishfinder package.
Also find under: fishing trolling
Fishing by drawing bait or lures through the water from a moving vessel.
Do not confuse fishing by trolling with a transmission’s trolling-valve function or a trolling motor product category.
Original concise explanations for equipment research. Use these specialist resources for the wider technical context and the relevant current documentation for a particular product or activity.
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