•Water Temp—sets an alarm to sound when the transducer reports a temperature that is 2°F (1.1°C) above or below the specified temperature. If you select On, press up or down on the ROCKER to select the temperature, then press SELECT.
•Battery—sets an alarm to sound when the battery reaches a user-determined minimum voltage. If you select On, press up or down on the ROCKER to select the minimum battery voltage, then press SELECT.
•Drift—sets an alarm to sound when the depth changes by the value specified. If you select On, press up or down on the ROCKER to select the change in drift, then press SELECT.
Display
To adjust the backlight or switch between day and night modes:From the Home screen, select Configure
> Display.•Backlight—press left or right on the
ROCKER.•Day/Night Mode—press down on the ROCKER to highlight the Day/Night bar. Press left or right on the ROCKER to switch between day and night mode.
Sonar
To change the sonar settings:
From the Home screen, select Configure
>Sonar. Change the sonar settings as described starting on page 6.
System
To change the system settings:
From the Home screen, select Configure
> System.•Beeper—sets beeps to sound during alarms (page 12) or when keys are pressed. Select Off, Alarms Only, or On (Keys & Alarms).
•Simulator—allows you to practice with or without a transducer.
•NMEA Output—allows the Fishfinder 300C to transmit information to other NMEA 0183-compatible electronic equipment.