Furuno CH-500, Руководство оператора

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1. OPERATIONAL OVERVIEW
1-17
1.13 How to Use the Sector Function
In some cases, you may want to restrict the scanning beam to a specific sector in re-
lation to your ship. A sector is a “slice” of the full scanning range.
Depending on the display mode selected, the sector setting behaves in a different
manner.
1.13.1 How to set and use a sector with horizontal mode
In Horizontal display mode, the SECTOR knob selects a preset width for the horizon-
tally scanned sector.
The setting range is 6° to 360° in 16 steps, as shown in the table below.
To increase the width, turn the SECTOR knob clockwise.
To decrease the width, turn the SECTOR knob counter-clockwise.
You can also alternate between full-range scan and half-range scan with the FULL/
HALF SECTOR key .
The full-range scan shows 360° degree coverage around your ship and the half-range
scan shows a 168° area in the train direction (see section 1.11.2 for details on hori-
zontal train).
Sector
width Sector
width
Sector
Width
(°)
6 24 48 72 96 120 144 168 192 216 240 264 288 312 336 360
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Preset