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fish contour. It is known that the sonar can see the fish first of all because of its air-bladder. That
is why its size will affect the fish contour size in the first run. For the same reason in summer
when moving the bubbles with gases on the algae may “appear” on the sonar screen as the fish.
Some clarifications regarding the place of the fish contour on the screen.
The fish requires ones of seconds to detect the fish as the object. As a rule, the fish contours
appearing near RTS 9 window (in the right part of the screen) they are the fish in the cone zone at
the moment. Further on these contours move from the left to the right on the screen. Naturally, this
movement does not correspond to real movement of the fish in the reservoir. The sonar makes
probing sending of acoustic signals 4 times a second. In conformity with this frequency the picture
on the screen moves. For example, if the fish contour is in the middle of the screen it means that
the fish was in the beam 10 sec ago, and if the fish contour is in the left part of the screen, the fish
was under the sensor 20 sec ago.
FISH ID mode or processed information output is designated firstly for not very experienced
users: professional would prefer other sensor modes, as raw data provide more data for reasoning
and enable to assess the condition of the reservoir with more accuracy. One should remember that
any fish-searching sonar for amateur and sport fishing is unable to define the specific size, weight
and view of the reflecting fish all by itself. Moreover, only very complicated and expensive models
that look more like military-oriented hydro-acoustic stations than the fish-searching sonar, are
able, and not in all the cases, to identify reliably the fish and cut out other objects. That is why one
should not expect from the device impossible: the screen displays only data processed in this or
that way coming from the sensor, but to understand in reality what is happening in the reservoir
can only the fisherman himself.
Pro mode (professional mode)
Summary of Contents for Praktik 6 Pro 2
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