19.3 Raymarine sonar modulesYou can find details on Raymarine’s sonar modulesbelow.The depth shown below for DownVisionTM and therange for SideVisionTM sonar modules are typicalachievable depths / ranges, depending on theconnected transducer in optimum water conditions.The depths shown for Traditional and CHIRP sonarmodules are the maximum depths achievabledepending on connected transducer in optimumwater conditions.Sonar module Technology / DescriptionCP100 DownVisionTM externalCP200 SideVisionTM externalCP300 Traditional externalCP450C CHIRP externalDragonfly DownVisionTM internala68 / a78 / a98 / a128 DownVisionTM internala67 / a77 / a97 / a127 Traditional internalc97 / c127 Traditional internale7D / e97 / e127 Traditional internalDSM30 / DSM300 Legacy externalNote: SideVisionTM cannot be used as a sourceof depth data.19.4 Multiple sonar module supportYour multifunction display supports multiple activesonar modules on the same network.You can select which sonar channel you want tobe displayed on-screen. Only 1 channel can bedisplayed at a time in a single Fishfinder applicationpane. Multiple channels can be displayed atthe same time using custom splitscreen pages.Alternatively multiple custom pages could be set upto suit individual requirements.Channel Description Sonar moduleAuto Automatically selectsthe best frequencyfor bottom tracking• CP300• CP450C• Sonar variantMFDs50 kHz / 83 kHz Good for deeperwaters and for a widesonar beam• CP300• CP450C• Sonar variantMFDs100 kHz Good detail atmost depths, withmoderately widesonar beam• CP450C160 kHz Gives good detail inshallow waters• CP450C200 kHz Gives the best detailin shallow waters• CP300• Sonar variantMFDsLow CHIRP Good targetseparation in deepwater• CP450CMedium CHIRP Good all roundperformance,with great targetseparation• CP450CHigh CHIRP Best for clear targetseparation in shallowwaters and bottomdetail• CP450CDownVisionTM Gives photo likeimages of bottomstructure• CP100• DownVisionTMvariant MFDsFishfinder application 257