Saluki S3601 Series User Manual page 85

User Span

Define search scope of user settings through [Start] and [Stop] box.
Search Type Zone

a) [Type]
It is used to select search type of marker; the Analyzer supports the following 7 search types.
Minimum value: to search the minimum measured data point.

Maximum value: to search the maximum measured data point.

Right peak value: to search the next effective peak value at the right side of marker.

Left peak value: to search the next effective peak value at the left side of marker.

Next peak value: to search the next peak value lower than current marker amplitude value.

When searching peak value, definition of peak must be made at first. Definition of peak is made through [threshold] and [shift] boxes.
[Threshold] defines the minimum peak point. The peak point of effective peak must be above threshold, and valleys at both sides can
be lower than threshold. [Bias] defines the minimum vertical distance between peak point and valley point, the vertical distance
between the peak value of effective peak and valleys at both sides must be larger than offset value. The default threshold value is
-100dB, and offset value is 3dB. Definition and settings of peak value for Analyzer are as below:
Threshold:
Bias:
Scale:
In the following figure, A is an effective peak, threshold and offset of which satisfy requirements; B is not an effective peak, without
satisfactory offset; C is also not an effective peak, without satisfactory threshold.
User 1
Figure 6-5 Search Scope of User Settings
-50dB
10dB
10dB/grid
User 3
User 2
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