Furuno DS-30 Operator's Manual page 65

11. Digital Indicator DS-351 (Option)
a. Indication System
b. Indication
Speed
Unit
Direction
Mode
Depth
c. Controls
Note 1: Depths are measured below transducer surface (hull bottom).
Note 2: The DS-30 uses an acoustic wave for speed measurements. Aeration due to rapid
acceleration/deceleration, heavy engine/propeller vibration or interference from other
sounding equipments can degrade performance of this equipment.
LCD display with dimmer
Fore/art: 0.00 to 99.99
Port/stb: 0.00 to 9.99
Knot or m/s
By up/down and right/left arrows
Ground or water tracking
Up to 99.9m
Dimmer, Mode switch, Unit switch
13-4