Users Manual Part 3

1. OPERATIONAL OVERVIEW
1-79
1.36 How to Off-Center the Display
Own ship position, or sweep origin, can be displaced to expand the view field without
switching to a larger range scale. The sweep origin can be off-centered to the cursor
position, but not more than 75% of the range in use; if the cursor is set beyond 75%
of the range scale, the sweep origin will be off-centered to the point of 75% of the limit.
This feature is available between 0.215 M and 48 NM ranges. The feature is not avail-
able in true motion mode.
If the conning position is outside the effective radar display, some parts of the bearing
scale are not shown. For details, see section 1.51.
1.36.1 How to off-center the display from the control unit (RCU-014/
RCU-031)
With the cursor shown
1. Place the cursor at the position where you wish to move the sweep origin.
2. Press the OFF CENTER key. The sweep origin is now off-centered at the cursor
position.
3. To cancel off-centering, press the OFF CENTER key again.
With the cursor hidden
Use the trackball to move the center to the desired location. To cancel off-centering,
press the OFF CENTER key.
The location to which the sweep origin returns depends on the following conditions:
• With the radar in transmit mode, or with the radar in standby mode while off-center-
ing is not active: the sweep origin is returned to the center of the screen.
• With the radar in standby mode while off-centering is active: the sweep origin is re-
turned to the off-center position.
Note: When the conditions shown below are met, off-center cannot be canceled. This
is because the radar antenna position is located at a position greater than 75% of the
effective radar display.
• Own ship marker is large.
• The distance between antenna position and conning position is large.
• Short-distance display range.
To cancel the off-center in these cases, select a larger range, then cancel the off-
center.
Off-centered displayPut cursor where desired
and do appropriate
off-center procedure.
Cursor
Cursor