Furuno FCV295 - Manual (Page 17)

1. OPERATION
9
1.10 Picture Advance
Speed
The picture advance speed determines how
quickly the vertical scan lines run across the
screen. When choosing a picture advance
speed, keep in mind that a fast advance
speed will expand echoes horizontally on the
screen and a slow advance speed will con-
tract them. A fast advance speed is useful for
observing the rugged bottom closely. A slow
advance speed is useful for observing the
smooth bottom.
1. Press the [MENU/ESC] key to open the
menu.
2. Use S or T to select Sounder and press
the [ENTER] key.
3. Use S or T to select Pic. Advance and
press the [ENTER] key.
4. Use S or T to select picture advance
speed desired and press the [ENTER]
key. The fractions in the window indicate
the number of scan lines produced per
transmission. 1/16 is the slowest speed
and 4/1 is the fastest speed. 1/16 means
one scan line is produced every 16 trans-
missions. "Stop" freezes the display and
is useful for taking a photo of the display.
5. Press the [MENU/ESC] key twice to fin-
ish.
Note: The picture advance direction is select-
able. See sec. 1.19.3.
1.11 Rejecting Interfer-
ence
Interference from other acoustic equipment
operating nearby or other electronic equip-
ment on your boat may show itself on the dis-
play as shown in the figure below. When this
occurs use the interference rejector.
Fast Slow
CAUTION
Neither the picture nor the depth indication
is updated when the picture is stopped. For
those reasons, do not steer the vessel while
monitoring the picture/depth indication
when the picture is stopped.
Slow
Fast
Interference from
other sounder
Electrical interference