5
5.9
5 – 26
Attention
5.9.2 Video Level Setting
Do not change the set point carelessly.
The video level is for deciding the minimum input signal level for the ATA’s target detection circuit.
The video level can be set to the range from 1 to 63.
Unless the level is set to a proper value, the acquiring and tracking functions of ATA will be degraded.
Setting the video TD level
The video TD level is the signal level of target acquisition in the guard zone. As the setting value is smaller,
a weaker echo is acquired.
If the setting is too small, the echo is acquired even due to the sea clutter returns. In that case, increase the
setting value.
Procedures
1. Set RANGE: 3 NM
TUNE: Optimum
GAIN: Maximum
SEA CLUTTER: Optimum
RAIN CLUTTER: Optimum .
2. Press the
SUB
MENU
key to open the SUB MENU.
3. Press the
5
key to open the ATA #1 menu.
4. Press the
9
key to open the ATA #2 menu.
5. Press the
3
key to open the ATA TEST menu.
6. Press the
3
key twice to select "VIDEO TD LEVEL".
7. When changing the setting value of the video level, press the
0
to
9
keys to enter the value of the video level and press the
ENT
key to fix this setting.
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