4-12
IM 701830-01E
Precautions when sampling with an external clock signal
• Clock signal must be set to continuous signal. You cannot use a burst signal.
• You cannot set the acquisition mode to envelope mode or box average.
• You cannot display the waveform in roll mode.
• There is no function to divide the frequency of the clock signal.
• Since you cannot change the time axis setting, change the record length setting or zoom in/
out on the time axis to change the display range of the time axis.
• The time measured by using cursor measurements and automatic measurement of waveform
parameters are in terms of clock counts of the clock signal. The unit is not displayed.
• You cannot select realtime print or realtime record to the internal hard disk.
• The following limitations exist for the trigger function.
Trigger delay setting becomes invalid.
Holdoff setting becomes invalid.
B>Time, B<Time, and B Time Out triggers Setting becomes invalid.
Operating Procedure
1.
Press the
ACQ
key.
2.
Press the “
Clock
” soft key and then select “
Int
” or “
Ext
.”
4.8 Selecting the Time Base
