RIGOL 
User’s Guide for DS1000B Series 
2-31
Delayed Scan 
 
The Delayed Scan is a magnified portion of the main waveform window. Use Delayed 
Scan to locate and horizontally expand part of the main waveform window for a more 
detailed (higher horizontal resolution) analysis of signal. The Delayed Scan time base 
setting cannot be set slower than the Main time base setting. 
 
Press MENU→Delayed→ON, or press horizontal   knob to turn on delayed 
scan function. See the waveform below. 
 
 
 
Figure 2-36 Delayed scan windows 
 
The screen will be split into two parts.  
The upper half displays the main waveform window and the lower half displays an 
expanded portion of the main waveform window. This expanded portion of the main 
window is called the Delayed Scan window. Two blocks shaded at the upper half; the 
un-shaded portion is expanded in the lower half. The horizontal 
 and 
 knobs control the size and position of the Delayed Scan. The value at top 
of the screen is the main time base and the value on the center bottom means the 
Delayed Scan time base. 
 
Waveform to be Horizontally Expanded 
Time Base of 
Delayed Scan 
Expanded Waveform in Horizontal 
Waveform to be Horizontally Expanded 
Time Base of 
Delayed Scan