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1. OPERATION
1-26
1.21 Zoom
The zoom function expands the length and width of a selected target as much as twice
its normal size, in the zoom window. You select the target to zoom with the zoom cur-
sor.
The ARPA and AIS symbols can be displayed in the zoom window, but are not
zoomed. You can process ARPA and AIS targets that are in the zoom window, in the
same method as on the normal radar display.
There are three types of zoom.
[Relative]: The zoom cursor is fixed to the range and bearing from your ship.
[True]: The zoom cursor is fixed to a set geographical position.
[Target]: The zoom cursor is fixed to the zoomed AIS ARPA target.
1.21.1 Zoom mode
You can select the zoom mode from [Relative], [True] or [Target].
1. Press the MENU key to open the menu.
2. Use S or T to select [Display] and press the ENTER key.
3. Use S or T to select [Zoom Mode] and press the ENTER key.
Zoom Mode options
4. Use S or T to select [Relative], [True] or [Target] then press the ENTER key.
Note: True zoom mode requires a heading signal and position data. If either sig-
nal is lost, true zoom mode is cancelled.
5. Press the MENU key to close the menu.
1.21.2 How to zoom
Relative or True zoom mode
1. Use the CursorPad to put the cursor on the position required.
2. Press the MENU key to open the menu.
3. Use S or T to select [Display] and press the ENTER key.
4. Use S or T to select [Zoom] and press the ENTER key.
Zoom options
5. Use S or T to select [On] and press the ENTER key. The ZOOM indication ap-
pears at the upper-left corner on the screen. The zoom window and the zoom cur-
sor also appear (see the illustration on the next page). To quit the zoom, select
[Off] instead of [On] and press the ENTER key.
6. Press the MENU key to close the menu.
Relative
True
Target
Off
On