Keysight Infiniium 9000 Series, Руководство по оценке

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Using Trigger Holdoff to Synchronize Acquisition/Display on Complex Signals
A
Keysight Infiniium 9000 Series Oscilloscope Evaluation Guide 69
9 Adjust trigger level to
approximately 3 volts,
which is down
approximately 1/3 below
the highest peak. Using
this level will provide
potential re-arm times
during the valleys of the
envelope.
10 Estimate the cycle time of
this complex signal –
note that there are two
unique envelopes per cycle time (use markers if you wish). Note that the
cycle time is approximately 450 µs. On the front panel, press [Markers] ,
Manual Placement, and set Ax to top of peak of small envelope and Bx to
top of the peak of the next small envelope. The delta is approximately
450 µs.
The correct holdoff time
to achieve stable trigger
on this signal is a value
slightly less than this
cycle time. Note that
400 µs should work.
11 Press [Run/Stop] key to
start unstable
acquisitions again.
Set up the trigger:
12 From the on-screen main
menu, choose Trigger>Setup Trigger... (or press [Menu] in the front panel
Trigger controls).
13 In the Trigger Setup dialog, click Conditioning... .