Agilent Technologies 54657A Specifikace Strana 24

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Press Mode .
A softkey menu appears on the display with five trigger mode choices.
Toggle the Single and TV softkeys and notice that they affect the status
line differently. (You can only select TV if the trigger source is either
channel 1 or 2.)
When the oscilloscope is triggering properly, the trigger mode portion
of the status line is blank.
What happens if the oscilloscope loses trigger?
If Auto Level is the trigger mode, Auto flashes in the status line. If dc coupled,
the oscilloscope resets the trigger level to the center of the signal. If ac
coupled, the oscilloscope resets the trigger level to halfway between the
minimum and maximum amplitudes as displayed on the screen. In addition,
every time you press the Auto Level softkey, the oscilloscope resets the trigger
level.
If Auto is the trigger mode, Auto flashes in the status line and the oscilloscope
free runs.
If either Normal or TV is the trigger mode, the trigger setup flashes in the status
line.
The Oscilloscope at a Glance
To trigger the oscilloscope
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