1. OPERATIONAL OVERVIEW
1-13
1.7
Software Function Key
You can see the current setting for each software function key. Put the cursor at the
bottom of the screen for approx. two seconds to show the settings. Left click a function
to get the corresponding action. See paragraph 5.2.2.
1.8
How to Adjust the Gain
The
GAIN
control adjusts receiver gain (sensitivity) for the horizontal and vertical
modes. Adjust it so fish echoes are clearly displayed with minimal noise on the screen.
Too high a gain setting not only displays excess noise and makes it difficult to discrim-
inate wanted echoes but also causes bottom echoes to be painted in strong colors,
resulting in echoes being masked by bottom reflections. Normally, set the control
somewhere between positions 3 and 7.
1. If the horizontal and vertical modes are active, press the
H/V/S
key to show the
range and gain indications of the mode you wish to adjust. Pressing the
H/V/S
key
changes the color of the range and gain indications to orange.
• H1/H2: Horizontal1 or horizontal2
• V1/V2: H or V display
142m
45m
B
115°
H R 400m
AUTO
17°
T
(21°)
G 1. 0
H-UP
B
330°
(210m)
48m
148m
148m
N
W
S
E
C
256°
S 12.3kn
230m
70m
3
2
1
1
2
P 8
B
290°
R 146m
3
2
1
1
3
2
1
2
3
2
1
3
W
12m/s
85
1
150
A
123°45.678E
34°56.789N
B
340°
(210m)
48m
168m
5:32
0.51NM
10
30
20
40
50
60
70
80
100
110
120
130
140
150
160
170
190
210
240
230
220
250
260
280
290
300
310
340
320
330
350
2
1
3
Range ring
data
B
128°
C
256°
B
234°
R 1056m
5:32
9.83NM
Software function key
You can do the functions assigned to function keys F1-10 (from left).
Software function key
You can do the functions assigned to function keys F1-10 (from left).
Record... Play S... Event Event... Fish M... Own Sh... Ship’s... Stabil... Net Co... Gain K...
■■■■■
■
■■
■■
Gain too low
Gain proper
Gain too high
Summary of Contents for FSV-2S
Page 1: ...COLOR SCANNING SONAR FSV 25 FSV 25S OPERATOR S MANUAL www furuno com Model ...
Page 14: ...SYSTEM CONFIGURATION xii This page is intentionally left blank ...
Page 74: ...2 HORIZONTAL MODE 2 44 This page is intentionally left blank ...
Page 92: ...4 NUMERIC GRAPHIC DATA DISPLAY 4 4 This page is intentionally left blank ...