Furuno CH-500, Руководство оператора

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2. HORIZONTAL MODE
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2.11 How to Select the Training Speed
The training speed is the increments at which sounding beam is transmitted in one full
circle (360°). Depending on your needs, you may want to change the speed.
A high speed (lower increments) displays the echoes in a “rough” manner, but is better
for tracking fast moving objects, such as a particular school of fish. A low speed (high-
er increments) display smoother echoes, but fast moving objects may not be detected.
The default training speed is 6°.
To change the training speed at any time, press the Train Speed button ( ).
With each press of the button, the train speed cycles through speeds in the following
order: 6°, 12°, 15°, 18°, 21°, 24°, 6°...
You can disable one or more of the train speed presets, depending on your needs.
See section 5.8.
2.12 How to Use the Vertical Search Feature
When a school of fish is detected by the horizontal scan, it may be difficult to estimate
the distance of the school from the seabed, or the distribution of fish within the school.
Unlike the fan-shaped beam used in Vertical mode, the [VERT. Search] feature “fo-
cuses” on the selected area and instantly changes the display mode to allow you a
clearer view of the school location in relation to the seabed and your ship.
This feature requires a function key set as the [VERT. Search] short-cut key. In the
following procedure, the default setting (key 1) is used. To set up short-cut keys, see
section 5.6.2.
1. Set the system to one of the Horizontal modes outlined in this chapter.
2. When a fish or school echo is detected, press the 1 function key. The display au-
tomatically switches to the Vertical mode to search for the echo.
3. Adjust tilt and train to find the fish or school echo again.
4. When the echo appears on the screen again, place the cursor on the echo and
read the depth/range indications at the top of the screen.
5. To return to the display mode used before activating the Vertical Search, press
the
1 key again.