Furuno DUAL GPS GP-150-DUAL - Manual (Page 44)

5. SETTING DESTINATION
5-8
AUTO uses ship's average speed to
calculate time-to-go.
6) If you selected MAN, enter speed.
7) Press the NU/CU ENT key.
The range, bearing and time-to-go between
two points appear on the display. If data
entered is wrong or insufficient the buzzer
sounds and the message "Incomplete Data"
appears. If the data contains error, "*" and
all nines appear as the calculation results.
8) Press the MENU ESC key.