Furuno GP-39 Operator's Manual page 49

6. ALARMS
WAAS alarm
This alarm alerts you when the WAAS signal is lost (for all status indications except
W2D/W3D). Note that [On] cannot be selected if [Mode] in [WAAS] menu is set to
[GPS].
Time alarm
The time alarm works like an alarm clock, releasing audio and visual alarms when the
time entered has come.
Trip alarm
The trip alarm tells you when your boat has traveled further than the preset trip dis-
tance.
Odometer alarm
This alarm alerts you when your boat has traveled the total distance you set.
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