JRC JFS-280, Instruction Manual

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2 Names and Functions of Parts 2-10
2
⑰
[RANGE LINK/3] key
Press this key to switch between linked and not linked operations.
Use the number [3] key, while the menu is open, to do operations.
⑱
[MEMORY/4] key
Takes a screenshot of the current screen.
Only one screen can be saved. The memory is deleted when the power is turned off.
If you want to keep a screenshot, you can insert a CF card and save the screenshot there. CF
cards are options. Contact your retailer.
Use the number [4] key, while the menu is open, to do operations.
⑲
[
□
/5] (net depth) key
Press this key to display a
□
mark at the ship's position. From then on, the
□
mark is
automatically displayed at the ship's position each time the ship advances the distance set for
the net depth recorder interval.
Also, a window opens when the net info graph is displayed or is set to display automatically.
In addition, pressing and holding this key removes all the marks.
When the marks are removed, the net info graph window also closes. (When the window
display is displayed, it is normally displayed, but the marks in the graph also disappear.)
Use the number [5] key, while the menu is open, to do operations.
⑳
[ /6] (buoy) key
Press this key to display a mark at the ship's position. (A maximum of 10 can be displayed.
If you press the key too many times, the oldest mark is removed and a new mark
is added.)
If you place the cursor on a
mark and click it, that mark disappears.
Also, pressing and holding this key opens the CNCL menu.
Use the number [6] key, while the menu is open, to do operations.
㉑
[ /7] (fish school size)
Press this key to display a mark indicating the size of the school of fish (octagon of the size
selected in the menu) in the middle of which is displayed the calculated value for the level.
When the fish school size display window is displayed or is set to display automatically, this
window opens and the level of distribution is shown in a graph.
If there is no target lock key, press this key twice to start tilt angle tracking mode. The mark
changes to a
and the tilt angel changes automatically according to the ship's movements.
Tilt angle and range operations cannot be done at this time. Also, automatic tracking is
canceled if the system enters tilt angle tracking mode while doing automatic tracking.