Read the downloaded manual and found about different transducers and has me lost again. QuadraBeam to be specific. I found one that appears new but the number is different. XTM-6-TB-90. Trying to squeeze all the performance I can from it.
You would need to change the User Mode to “Advanced” (under the Setup tab) and then check in the Connected Transducer Menu (under the Sonar tab) to see if there is an option for Quadrabeam ...