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1. RADAR OPERATION
1-22
1.13.2 Manual speed input
If the speed log is not working, enter speed manually as below. In this case the
speed data type is shown as MANUAL and is speed thru water (STW). Note that,
for the IMO specification radar, manual speed input is not available when the AIS
feature is active.
1. Roll the trackball to place the arrow in the SPD box at the top right corner of
the screen.
2. Push the right button to display the SPEED menu.
3. Roll the wheel to choose 1 SHIP SPEED and then push the wheel or the left
button.
4. Roll the wheel to choose MANUAL and then push the wheel or the left button.
5. Roll the wheel to choose 2 MANUAL SPEED and then push the wheel or the
left button.
6. Roll the wheel to set speed. (For entry through the keyboard, use the
numeric keys.)
7. Push the wheel to finish.
8. Push the right button to close the menu.
1.14 Choosing the Range Scale
The selected range scale, range ring interval and pulselength are shown at the
upper left corner on the screen. When a target of interest comes closer, reduce
the range scale so that it appears in 50-90% of the display radius.
By keyboard
Use the [RANGE] key to choose range desired. Hit the “+” part of the key to
raise the range; the “-“ part to lower the range.
By trackball
1. Roll the trackball to choose the RANGE box at the top left corner of the
screen. The guidance box shows “RANGE DOWN / RANGE UP.”
0.125
NM
0.025
RANGE box
2. Push the left button to lower the range; the right button to raise the range.
You may also choose the range by rolling the wheel and then pushing it or
the left button.