JRC JFE-400 Instruction Manual page 65

Depth Alert

Lost Depth

WEAK ECHO TX F

・ Touch and the setting will be displayed.
・ Detail item ：OFF/ON
・ Change the settings with
・ Touch to start simulating alert when setting is ON.
・ Touch and the setting will be displayed.
・ Detail item ：OFF/ON
・ Change the settings with
・ Touch to start simulating alert when setting is ON.
・ Touch and the setting will be displayed.
・ Detail item ：OFF/ON
・ Change the settings with
・ Touch to start simulating alert when setting is ON.
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4. Operation