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3.3
3.3.3 Selecting Range Scales [RANGE]
2
12
Fixed range ring spacing (nm)
Range scale (nm)
The operator can select various range scale among 0.125, 0.25, 0.5, 0.75, 1.5, 3, 6, 12, 16, 24, 32, 48, 96 and
120 (nm). Press the
RANGE
key to decrease the range or the
RANGE
key to increase it. The current
range in use and the range ring spacing are seen in the upper left of the screen.
3.3.4 Selecting Pulse Width [PULSE WIDTH]
PULSE
WIDTH
The operator can select three pulse widths ( SP (short pulse), MP (medium pulse) and
LP (long pulse) by pressing the
PULSE
WIDTH
key when the range scale is any of 0.75, 1.5, 3, 6, 12 and 16nm. The
current pulse width is displayed like " MP" on the lower left of the screen. Using the short range
increases target resolution and decreases clutter returns. Using the long pulse increases target reception and
decreases clutter returns although target resolution also decreases.
3.3.5 Disabling Ship's Head Marker [SHM]
SHM
The ship's head marker (SHM) showing the course of the own ship is always displayed on the screen. While
the
SHM
key is pressed, the SHM disappears and targets in the direction of the bow can be observed
easily.
In the course-up display mode, pressing this switch returns the ship's head marker (SHM) to the top of the
screen.
◎ When the ship's stern marker (dotted line) is displayed on the screen, the marker also disappears while
this key is pressed.
RANGE RANGE
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