Samyung ENC NCD-2256, Инструкция по эксплуатации, Страница: 123 / 192

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Chapter 8 DETAIL PERFORMANCE SETTINGS
8.1.1 MAIN BANG SUPPRESSION
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.
If the main bang is not so big, use the default setting at factory.
Before adjustment:
1.Set the range to 0.125NM. 2.Set the radar video enhance function.
3.Set the radar video process function. 4.Turn the [GAIN] control to the maximum position.
5.Turn the [RAIN] control to the minimum position.
6.Turn the [SEA] control to achieve the strength with which main bang can be judged.
8.1.2 TARGET ENHANCE LEVEL
Sets the level of target enhancement.
Target enhance level can be set from level1 to level4.If the level is set too high, the range resolution may be
declined. So it is necessary to set a value properly.
8.1.3 GAIN PRESET
Adjust the minimum sensitivity level of the [GAIN] control.
Do not change this adjusted level carelessly
The value is usually set to 0 and should not be changed unless there is problem.
Before performing this adjustment, perform the operation described in “NOISE LEVEL ADJUSTMENT”.
Do not change suppression level/area unless absolutely necessary.
Incorrect adjustment will result in deletion of nearby target images and
thus collisions may occur resulting in accidents.
If sensitivity is set too high, unnecessary signals such as noises in the
receiver and false echoes increase to lower target visibility. At the same
time, if sensitivity is set too low, detection of targets such as ships and
dangerous objects may be hindered. Therefore, sensitivity must always be
set to an optimal level.
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