HP 54540 Series - Page 125

Marker Menu
x1 Position Seftkey
x1 Position Softkey
This softkey selects the x1 marker for positioning on a waveform. When
selected, the field is highlighted, and you use the entry knob to move the x1
marker across the display. The x1 marker is the vertical marker with longer
dashes, and is marked on the top of the waveform viewing area as "x1."
The x1 marker is placed on the display respective to the trigger point.
Positive time values are to the right of the trigger point and negative time
values are to the left. Measurement information is displayed in the
highlighted field and below the graticule area. The display units are seconds
in all modes except FFT, where the display units are in Hz.
yl Position Softkey
This softkey selects the yl marker for positioning on a waveform. When
selected, the field is highlighted, and you use the entry knob to move the yl
marker vertically. The yl marker is the horizontal marker with longer
dashes, and is marked on the left side of the display as "yl."
You can place the y1 marker at the desired level on the waveform.
Measurement information is displayed in the highlighted field and below the
graticule area. The display units are volts in all mode except FFT, where the
display units are in dBm.
You can position the x/y markers on a selected source even though that
source is not displayed. You may want to check which source the markers
are assigned to before you move the markers or make measurements with the
markers.
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