EasyScopeIII for DS60M10 User Guide
Version 1.3
Document Reference No.: CP_000037 Clearance No.: CP#027
Copyright © Connective Peripherals Pte Ltd
22
To move the cursors, select the Cursor tab and select the corresponding cursor. Please refer to the figure
below.
The coloured panel on the button is illuminated when the channel is active.
When the zoom function or zero padding option is active, the scroll bar at the bottom of the plot area
may be used to scan through the FFT data.
The zoom function is active for 3 values. The options are as follows:
First Zoom In: 50% of original scale.
First Zoom In: 25% of original scale.
First Zoom In: 12.5% of original scale.
3.3.10.2
Man
Clicking the "Man" button in the FFT window enables the up/down buttons and changes the button
caption to "Auto". This allows the vertical scale of the plot to be changed manually.
Clicking on "Auto" will enable auto scaling for the vertical axis.
When manual mode is active, the initial scale for the Y-axis is 50 as shown in the figure below.
This value is incremented by 100, every time the up arrow is pressed, so that the y-axis scale is set to
the value in the spin box.
3.3.10.3
Averaging
The averaging option may be used to help eliminate noise from measurements. The averaging options
available are off, 5, 10, 20 and 50 sweeps.
3.3.10.4
Zero Pad
Zero padding may be used to artificially increase the number of data points included in the FFT. The
default is no zero padding and using the 1024 points obtained from the data buffer. The FFT is always
1024 samples around the trigger point even if 2K, 4K or 8K buffer used.
