JMA-9100 Instruction Manual > 7.SETTINGS FOR SYSTEM OPERATION > 7.3 ADJUSTMENT
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7.3.3 Main Bang Suppression Level Adjustment (MBS)
Main Bang Suppression is adjusted to suppress main bang, a reflection signal
from 3D circuit including wave guide tube, that generally appears as a circular
image focusing on the center of the radar display. Optimum adjustment allows
main bang image to remain lightly on the display.
7.3.3.1 Adjustment of Main Bang Suppression Level (MBS Level)
Procedures
1) Open the Serviceman Menu.
2) Perform the following menu open procedure to open the MBS
level adjustment menu.
ā
ā
3) Set the radar as follows:
ā¢
Set the radar range to 0.125 NM.
ā¢ Set the radar video enhance function (ENH) to OFF.
ā¢ Set the image processing (PROC) to OFF.
ā¢ Turn the [RAIN] control to the minimum position (fully to the left).
ā¢ Turn the [GAIN] control to the maximum position (fully to the right).
ā¢ Turn the [SEA] control to achieve the strength with which main bang can be judged.
4) Adjust the value so that the main bang can be erased.
Do not change this adjusted level carelessly.
Incorrect adjustment may erase targets in point-blank
range and cause collision, resulting in death or serious
injury.
9. RADAR/TT Initial Setup
3. MBS
1. MBS Level
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