
Display modes
41
857-164636 / Rev.A
(H)
Single fish echo
(I)
Current primary technical parameters. The top line specifies
the current operational frequency. The second line specifies the
current output power (”A” means that it is set automatically),
and the third line specifies the current pulse length.
The presentation is controlled by the parameters defined in the
presentation setup. To change these parameters, press the
ENT
button to open the
Presentation setup
. To change presentation
units, press the
MENU
button to open the main menu, and then
select
Speed alarm, units and language
on the
Setup
menu.
In the
Echo sounder setup
(on the
Echo
menu) you can change
the readout for current depth (C). The A-scope presentation can
be switched on and off from the
Echo
menu.
Bottom expansion
The PI32 provides a
Bottom expansion
function. When enabled
the vertical area close to the seabed is expanded. The resulting
presentation will not show the depth variations, as the bottom
will appear flat. However, echoes close to the bottom will be
enhanced. Note that the depth range in this presentation will be
“upside down”, as the seabed is defined as level “0”.
To enable this function, press the
MENU
button, and select
Bottom expansion
on the
Echo
menu. To disable it, select
Echo display
on the same menu. The vertical size of the
expansion window is controlled by the
Expansion window
parameter in the
Presentation setup
. Press the
ENT
button to
access this setup page.
A-Scope
The PI32 provides an
A-Scope
function. This presentation
provides the echo from the latest ping only. The strength of the
returned signal from various depths in the water column are
indicated by the horizontal deflections from the Y-axis. This
presentation is very useful if you wish to search for single fish,
as those echoes are hard to see on the regular echogram. Also,
the presentation will give an indication on how strong the
various echoes are.
To enable this function, press the
MENU
button, and select
Turn A-Scope on
on the
Echo
menu. To disable it, select
Turn
A-Scope off
on the same menu.
Содержание PI32
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