Sonic SCS-60, Руководство по эксплуатации

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5-11
5.3.2 NET SET
This function is for displaying a ring mark according to the fish school echo before a
net is cast. This ring mark can also be used to display a predicted circular of the cast
net, and to determine the size of the fish school echo. The size of the ring mark can be
changed in the "NET LENGTH" settings from
“MENU.”
To enable this function, it is necessary to enter ship speed and direction information.
Operation procedure 1: When this function is used after it is registered to the
two-touch key of the controller
(a) Register "NET SET" to any preset keys of to .
(The details are described in 5.2.1.)
(b) Place the cross-cursor over any position to display the ring mark, and then press
the preset key in which "NET SET" is registered. The ring mark then appears on
the screen.
(c) To erase the ring mark, press again the preset key to which "NET SET" is
registered.
Operation procedure 2: When this function is used after it is registered in
“SUB
AREA” on the sonar screen
(a) Register "NET SET" in
“SUB AREA” on the sonar screen.
(b) Place the cross-cursor over the frame, and then press the set key ( ) of the
controller. (The color of the frame turns pink, indicating that "NET SET" operation
is enabled.)
(c) Press the set key ( ) of the controller. A red ring mark then appears on the
screen.
(d) The red ring mark is set and reset repeatedly each time that the set key ( ) is
pressed.
(e) To cancel "NET SET" mode, place the cross-cursor over the frame of the "Net
Set" preset key, and then press the set key ( ).
(The pink color of the frame disappears, indicating that the mode is cancelled.)
Ring Mark Size Setting
The ring mark size can be set in "NET LENGTH" of "VALUE SET" selected from
"OPTION." The net length can be set in the range of 0 to 2,000 m in increments of 50
m.