Eagle Electronics TRIFINDER 2 - Manual (Page 34)

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You may see Fish I.D. symbols on the screen when actually, there are
no fish. The reverse is also true — Fish I.D. can actually miss fish that
are present.
Does that mean Fish I.D. is broken? No — the feature is simply inter-
preting sonar returns in a specific way to help take some of the work
out of reading the screen. Remember: Fish I.D. is one of the many tools
we provide so you can analyze your sonar returns for maximum fish
finding information. This and other features can help you successfully
"see" beneath the boat under varied water and fishing conditions. So,
practice with the unit in both the Fish I.D. mode and without to become
more familiar with the feature. The default for Fish I.D. is off.
Fish I.D. is most handy when you're in another part of the boat or per-
forming some task that prevents you from watching the sonar screen.
Then, you can turn on Fish I.D. and the audible fish alarm. When that
lunker swims under your boat, you'll hear it!
Fish I.D. can also be useful when you want to screen out some of the so-
nar detail gathered by your unit. For example, it can help cut through
the clutter of suspended bubbles caused by wave action or boat wakes.
To turn Fish I.D. on, press MENU until the F ISH ID menu appears. Press
UP ARROW to select O
N
, then press PWR . To turn it back off, repeat the
above steps, but press DOWN ARROW to select O
FF
.
FISHTRACK™
The FishTrack
 feature shows the depth of a fish symbol when it ap-
pears on the display. To turn it on, press MENU until the F ISH ID menu
appears. Press UP ARROW to select T
RACK
O
N
, then press PWR . To turn it
off, repeat the above steps, but press DOWN ARROW to select O FF
. (If you
want to turn off FishTrack depths but leave Fish I.D. on, press DOWN
ARROW to select O
N
, then press PWR .) Remember, Fish I.D. must be on
in order to use the FishTrack feature.
Fish ID menu and symbol with FishTrack on. The fish is 44 feet deep.
Fish I.D. symbol
showing FishTrack
depth indicator