Agilent Technologies U1602A User's And Service Manual page 78

3 Using the Scope Functions
The High condition sets the voltage level to greater than the channel's trigger level.
N O TE
The Low condition sets the voltage level to less than the channel's trigger level.
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• TTL trigger level sets the trigger level to recognize the High/Low
condition in a TTL signal automatically.
• ECL trigger level sets the trigger level to recognize the High/Low
condition in an ETL signal automatically.
• Set to 50% trigger level sets the trigger level to the center of the
High/Low value of the waveform currently displayed. This setting is
useful when the trigger level is beyond the display.
• Gate
Press F2 on page 3/3 to set the logical gate combination of the
channel.
• Condition
Press F3 on page 3/3 to set the pulse width and qualifying condition.
You can set the pulse width by turning the rotary switch. There are
4 conditions for your selection:
• The "less than" (<) qualifier sets the instrument to trigger on a
pulse width less than the time value.
• The "greater than" (>) qualifier sets the instrument to trigger on a
pulse width greater than the time value.
• The "equal" (=) sets the instrument to trigger with equivalent to
the time value.
• The "not equal" (≠) sets the instrument to trigger with not
equivalent to time value.
Agilent U1602A/U1604A User's and Service Guide