At Level Field - HP 16534A User Reference

The Marker Menu

at Level Field

at Level Field
When the marker Type is Percent, the at Level field sets the Tx or To marker
to a percentage level (from 10% to 90%) of the top-base voltage on the
waveform selected by the Set on field. When you select the at Level field,
you can change the percentage by turning the knob or by entering a value
from the pop-up keypad. The keypad appears when you touch the at Level
field when the field is light blue. You can enter any percentage from 10% to
90% in increments of 1%.
The default value for the at Level field is 50%.
When the marker Type is Absolute, the at Level field sets the Tx or To
marker to the specific voltage level. The allowable voltage range that can be
selected is the vertical range for the selected channel (that is: offset ± 2
times V/div). You can change the voltage level by either turning the knob or
by entering a value from the pop-up keypad. The keypad appears when you
touch the at Level field when the field is light blue. You can enter any
voltage from -12V to 4V in increments of 30mV.
The power up default value for at Level field is the selected channel offset
value. If the vertical range parameters (for example: v/div, offset, probe
factor) of a channel are changed such that the current at Level voltage is no
longer valid, the at Level voltage will track the limit of the vertical range.
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