Koden MDC-2200 series, Руководство по установке

Страница: 53 / 123

Chapter 4 Setup after installation MDC-2200/2500 Series
4-6 0092625002-06
4.2.2 Setup of MBS value (Main Bang Suppression)
This setting is utilized to suppress eliminate the center spot signal at the middle of the picture as
shown in Figure 4.4.
(1) Set range to 0.125 NM, RAIN knob to 0, SEA knob to
0, GAIN knob to 8, and brilliance knob to 10
(maximum) respectively.
(2) Press [MENU] key, select STARTUP => MBS => to
highlight the last digit value, using the joystick.
(3) Turn sea knob to display center spot in the middle of
the picture.
(4) Move a joystick up or down to increase MBS value
from 0 with observing the center circle. Press
[ENTER] key to save the setting as the circle just
fades out.
4.2.3 Setup of ATA threshold (ATA target level)
Setup the ATA target detection level.
The lower the setting value increases the gain and its capability to acquire weak echo targets.
Higher setting values decrease the gain and will not acquire on weak echoes such as noise.
This threshold value defines discriminating level of the target signal. Too little a value may cause
target to be lost when the target is surrounded by strong sea clutter. Too large a value may cause
you to lose targets with varying signal strength. The default value is 15.
When ATA TGT LVL menu is selected, ATA level monitor is shown at the lower right side of the
screen. Adjust ATA TGT LVL so that a target is displayed clearly in the ATA level monitor.
4.2.4 Changing the radar picture expression (Video mode)
This function modifies expression of target picture such as target intensity, allows neutral colors to
take out a sea clutter and rain can be displayed as a different color from a target. Since it becomes
easy to distinguish sea clutter or rain from the target because the difference in a color especially if
neutral colors are used but weak signals are expressed weaker and it appears the sensitivity
worsens. However, it is suitable for stormy weather.
Setting procedure
(1) Press [MENU] key, select PRESET => VIDEO MODE => VALUE, using a joystick highlight
the last digit.
(2) Move a joystick up or down to select desired value between 0 to 4 and then press [ENTER]
key to save. The picture varies according to the value 0 to 3, small value for “Soft picture
using many neutral colors” and large value for “Sharper picture”.
In case of value 4, the picture quality depends on the range; short range for “Soft picture using
many neutral colors” and long range for “Sharper picture”.
Transmit leak
Figure 4.4 Center spot
Transmitting leak