Sonar technologies ContentsTraditional sonar technologyTraditional sonar uses a single carrier frequency or carrier wave for the sonar ping. The sonar works by measuring the time it takes the ping echo to return to the transducer to determine target depth.CHIRP technologyCHIRP (Compressed High Intensity Radar Pulse) sonar uses a swept frequency signal covering a wide range of frequencies which produces more accurate images with higher detail than traditional sonar.CHIRP Sonar overviewCHIRP sonar produces a conical shaped beam. The coverage of the conical beam is the water column directly beneath the vessel.DownVision™ overviewDownVision™ produces a wide-angle side-to-side beam and a thin fore-to-aft beam. The coverage of the DownVision™ beam is a water column directly beneath and to the sides of the vessel.SideVision overviewSideVision™ transducers are side looking transducers that produce 2 wide-angle side-to-side beams, each with a thin fore-to-aft beam to build up a detailed underwater view as your vessel moves forward.. The coverage of the SideVision™ beams is an area to both side of your vessel.RealVision™ 3D overviewRealVision™ 3D and RealVision™ Max 3D transducers produce life-like 3D sonar imagery. When using a RealVision™ 3D or RealVision™ Max 3D transducer, the 3D Vision channel will be available in the Fishfinder app. RealVision™ 3D and RealVision™ Max 3D transducers are also capable of producing DownVision™, SideVision™, and CHIRP conical sonar channels.Parent topic: Fishfinder appPrevious topic: Fishfinder channel overviewNext topic: Sonar channel range