Agilent Technologies 1000B Series - Performing Mask Tests; To Enable;Disable Mask Tests; To Select the Source Channel for Mask Tests

Oscilloscope Utility Settings 6
Agilent 1000B Series Oscilloscopes User’s Guide 135
Performing Mask Tests
The mask test function monitors waveform changes by comparing the
waveform to a predefined mask.
To access the Mask Test menu:
1 Press [Utility].
2 In the Utilities menu, press Mask Test.
To enable/disable mask tests
1 In the Mask Test menu ([Utility] > Mask Test), press Enable Test to toggle
between OFF and ON.
To select the source channel for mask tests
1 In the Mask Test menu ([Utility] > Mask Test), press Source.
2 Continue pressing the Source softkey or turn the entry knob to
select the desired input channel.
NOTE
The Mask Test function is not available in the X-Y horizontal timebase mode.