2OperationScreen1. Picture feed speed 2. Depth3. Time marker (one yellow line indicates 30s)4. Basic range 5. Fish school or other objects6. First reflection echo 7. Second reflection echo8. Gain (H: 200 kHz, L: 50 kHz) 9. Color bar10. Zoom mode display areaBottom lock zoom modeLayer zoom mode11. AL-OFF Shallow alarm symbol12. Buzzer symbol13. Fish alarm symbolNote:1. Bottom-lock zoom and layer zoom is not available in dual-frequencymode or range relay mode2. In range relay mode, the right corner of the screen shows“ ”