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1. OPERATION
11
1.15 Fish Information
(ACCU-FISH
TM
)
The ACCU-FISH
TM
feature measures the
length of individual fish and tags the fish with
a fish symbol whose size is proportional to the
length of the fish. The length or depth of the
fish can be indicated digitally. Connection to a
transducer that supports ACCU-FISH
TM
is re-
quired.
Note: The fish length calculated by this fish
finder is intended for reference purposes; it is
not a completely accurate measurement of
fish length.
Considerations for ACCU-FISH
TM
1.15.1 How to activate
ACCU-FISH
TM
ACCU-FISH
TM
is inoperative when the trans-
ducer type is selected to 600W or 1kW FCV-
587 only), on the [Transducer] menu.
1. Open the menu, select [Display] and
press the ENTER key.
2. Select [ACCU-FISH] and press the EN-
TER key to show the [ACCU-FISH] menu.
3. Select [ACCU-FISH] and press the EN-
TER key.
4. Select [On] to enable ACCU-FISH
TM
.
1.15.2 Fish symbols
1. Open the menu, select [Display] and
press the ENTER key.
2. Select [ACCU-FISH] and press the EN-
TER key to show the [ACCU-FISH] menu.
3. Select [Fish Symbols] and press the EN-
TER key.
[Fish Symbols] setting box
• The 600 W transducers which support
ACCU-FISH
TM
are 520-5PSD, 520-5MSD,
525-5PWD, 525STID-MSD and
525STID-PWD.
• To display fish marks and fish size using a
1 kW transducer, the integrated transducer
50/200-1T or 50/200-12M is recommended.
• Echo intensity depends on fish species.
When the fish length differs between the in-
dicated length and the actual length, you
can compensate the difference on the
[Calib] menu (see section 2.6).
• ACCU-FISH
TM
is inoperative when the zero
line rejector is active.
• High and low frequencies are alternately
transmitted when ACCU-FISH
TM
is active,
regardless of mode selection.
• A fish whose depth is shallower than 2 m or
greater than 100 m cannot be measured.
• If the transducer is installed inside the hull,
the signal is attenuated by the hull. There-
fore, a fish may not be detected or the fish
length indicated may be shorter than actual
length.
• In a school of fish, echoes overlap one an-
other, so the margin of error will be greater.
• The bottom echo must be present to show
the fish symbols.
• The TX pulse length changes according to
ACCU-FISH
TM
On/Off state. This causes a
difference in both sensitivity and the echoes
viewed.