How To Use The Accu-Fish ™ Feature - Furuno FCV-2100 Operator's Manual

1. OPERATION
1.20.2 How to use the ACCU-FISH
The ACCU-FISH
The ACCU-FISH
Important considerations when using the ACCU-FISH
• The ACCU-FISH
accurate measurement of fish length.
• Echo intensity depends on fish species. When the fish length differs between the
indicated length and the actual length, you can compensate the difference on the
[Calibration] menu (see section 4.8.4).
• Fish at depths of less than two meters cannot be measured. However, if [Zero Line
Rejector] is set to [On], fish within the area covered by the transmission line cannot
be detected.
• The maximum depth at which the ACCU-FISH
pending on transducer type, vessel configuration, sea conditions and other factors
which may affect beam accuracy.
• In a school of fish, the echoes overlap. This causes a greater margin of error in fish
size measurement.
• This feature cannot be used with inside-hull transducers. Depending on the trans-
ducer frequency, fish may not be detected. Further, even if fish are detected, their
indicated length may be smaller than the actual length.
• The TX pulse length changes according to ACCU-FISH
a difference in both sensitivity and the echoes viewed.
How to activate/deactivate the ACCU-FISH
1. Place the cursor inside the external fish finder screen, then right-click. The [Exter-
nal Fish Finder] menu appears.
2. Select [Measurement]. The ACCU-FISH
window.
3. Select the drop-down box to the far right-hand side of the menu, then select [On].
ACCU-FISH
4. To deactivate ACCU-FISH
1-30
™
feature requires connection to a compatible transducer.
™
feature outputs fish echoes with a mark and an estimated size.
™
feature is intended for reference purposes; it is not a completely
Sounder
HF
ACCU-FISH
LF
Display
Measurement
System
Range
™
is now active, fish marks and sizes now appear on the screen.
Fish size
™
™
feature
™
feature can detect fish varies, de-
™
feature
™
setting appears in the right-side of the
Measurement
Off
64
Fish mark
, repeat the procedure, then select [Off] at step 3.
™
feature
™
On/Off state. This causes