Changing Zoom Magnification Factor; Selecting Hue (Color Arrangement); Measuring Depth; Knowing Depth Change By Audible Chime - Furuno GP-1610CF Operator's Manual

Figure 3-11 How SIG LEV works
3.8 Changing Zoom
Magnification Factor
You may select the zoom magnification fac-
tor for the marker and bottom zoom modes.
This the amount the zoomed picture is mag-
nified in relation to the normal picture.
1. Press the MENU key.
2. Press the [6] key to display the VIDEO
SOUNDER SETUP menu.
3. Press or to select ZOOM.
4. Press t or s to select zoom factor de-
sired; x2, x3, x4 or x5.
5. Press the MENU key.
3.9 Selecting Hue (color
arrangement)
The GP-1610CF provides several color ar-
rangements to match lighting conditions.
1. Press the MENU key.
2. Press the [6] key to display the VIDEO
SOUNDER SETUP menu.
Weak
echoes
Signal level
adjusted
3. Press or to select HUE.
4. Press t or s to select hue arrangement
number. (A portion of the sounder display
appears so you may see the result of your
selection.)
H e u 1 2
B k d g l B e u L g i t h
c l o r o l b e u
5. Press the MENU key.

3.10 Measuring Depth

The VRM (Variable Range Marker) functions
to measure the depth to fish schools, etc.
1. Press or to place the VRM on an
echo.
2. Read the VRM range just above the VRM.
58.3
132
CSE 180.0° SPD 16.8kt
DEP 132m TMP 16.0 °C
POS 34° 26.245' N 135° 41.232' E
Figure 3-12 How to measure
depth with the VRM
3.11 Knowing Depth Change
by Audible Chime
The depth chime function alerts you to change
in depth by audible chime Depth change di-
rection is given by chime interval; the longer
the interval the greater the change in depth.
To turn on or off the depth chime function, do
the following:
1. Press the MENU key.
3 4 5
B a l k c G e r n e B a l
0 Depth of
VRM
40
VRM
80
120
160
200k
2D
14:32
k c
3-5