Split-Frequency Sonar View
In the split-frequency sonar view, the two sides of the screen show a full-view graph of sonar data of different frequencies. You can use this view if you have installed multiple transducers or a transducer that supports multiple frequencies.
NOTE:
When using a single-band CHIRP transducer connected to a supported chartplotter or sonar module, the split-frequency sonar view alternates between the two frequencies, which slows the scroll speed. A channel indicator appears next to the sonar frequency on each side of the screen to help identify this behavior.