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1. OPERATION
1-51
1.43 Sector Blank
You must prevent the transmission in some areas to protect passengers and crew
from microwave radiation. Also, if the reflections of echoes from the mast appear on
the screen, you must prevent the transmission in that area. You can set two sectors.
1. Press the MENU key to open the menu.
2. Use S or T to select [Sector Blanks] and press the ENTER key.
3. Use S or T to select [Sect-Blank 1 (or 2) Status] and press the ENTER key.
Sector-Blank Status options
4. Use S or T to select [On] and press the ENTER key.
5. Use S or T to select [Sect-Blank 1 (or 2) Start] and press the ENTER key.
Sect-Blank Start setting window
6. Use S or T to set the start point of the sector and press the ENTER key.
7. Use S or T to select [Sect-Blank 1 (or 2) End] and press the ENTER key.
Sect-Blank End setting window
8. Use S or T to set the end point of the sector and press the ENTER key.
Note 1: You can not set the sector more than 180 degrees.
Note 2: You can not set the total width of sector 1 and sector 2 more than 270
degrees.
9. Press the MENU key to close the menu.
As shown in the following illustration, dashed lines mark the start and end points of the
sector.
Sector blank
Off
On
250°
(0°~359°)
+
Area of no
transmission
Start bearing
of sector
End bearing
of sector