Basic Operation

Understanding the Flasher Screen

The Flasher screen (dual beam transducer only) provides an almost instantaneous return of what is below your boat. The depth scale is organized as a ring that starts at the top, or 12:00, and progresses clockwise. Sonar information flashes on the ring when it is received at the depth indicated on the inside ring. Like the regular graph, The colors indicate different strengths of the sonar return.

On the Home screen, highlight Flasher, and press SELECT.

Voltage

Water

 

 

Temp

Flasher ring

 

Depth

Water

Odometer

speed

 

Understanding the Split Freq Screen

Use the Split Freq screen (dual frequency transducer only) to view both the 50kHz and 200kHz frequencies on the same screen.

On the Home screen, highlight Split Freq, and press SELECT.

Depth, temperature and speed

Range

Frequencies

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Fishfinder 400C Owner’s Manual