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8.5 ADJUSTMENTS
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……Quantization Level ……………………………………………………
The quantization level determines the minimum signal level of the input video to the ARPA target
detection circuit. In this test, the value of the quantization level can be set in a range of 1 to 63.
If the value is set to a lower level, weak target echoes will be inputted to the ARPA target detection
circuit, but much radar noise will also be inputted to the circuit together, and target acquisition and
tracking may be disabled. Therefore, it is important to set a value that is 4 or 5 higher than the detected
noise level.
1 Continue to press .
The CODE INPUT Menu will appear.
2 Press , then .
The ADJUST Menu will appear.
3 Press .
The ARPA Menu will appear.
4 Press .
The VIDEO LEVEL Menu will appear.
5 Press .
will be selected.
6 To change the quantization level, enter a new value using any of to
or and , and press to set it.
Do not change the set quantization level carelessly. If the level deviates from the proper
value, the ARPA acquisition and tracking functions will deteriorate.
Otherwise, this may cause accidents to occur.
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