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Agilent InfiniiVision 3000 X-Series Oscilloscopes 
User's Guide
 
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Mask Testing
To create a mask from a "golden" waveform (Automask) 243
Mask Test Setup Options 245
Mask Statistics 248
To manually modify a mask file 249
Building a Mask File 252
One way to verify a waveform's compliance to a particular set of 
parameters is to use mask testing. A mask defines a region of the 
oscilloscope's display in which the waveform must remain in order to 
comply with chosen parameters. Compliance to the mask is verified 
point- by- point across the display. Mask test operates on displayed analog 
channels; it does not operate on channels that are not displayed.
To enable mask test order Option LMT at time of oscilloscope purchase, or 
order DSOX3MASK as a stand- alone item after oscilloscope purchase.
To create a mask from a "golden" waveform (Automask)
A golden waveform meets all chosen parameters, and it is the waveform to 
which all others will be compared.
1 Configure the oscilloscope to display the golden waveform.
2 Press the [Analyze] key.
3 Press  Features; then, select Mask Test.
4 Press  Features again to enable mask testing.