To examine the capture buffer
1 Activate the trace you will use to view one channel of the time-capture buffer.
2 Press [
Meas Data
], then press [
CHANNEL 1 2
]or[
CHANNEL 1 2 3 4
] to highlight the
channel of captured data you want to view.
3 If the FFT instrument mode is selected, press [
MORE CHOICES
][
CAPTURE CHANNEL x
].
or
If any other instrument mode is selected, just press [
CAPTURE CHANNEL x
].
4 Press [
Scale
], then press [
AUTOSCALE ON OFF
] to highlight ON.
5 Press [
AXES SCAL MARKERS
], then press [
AXIS X Y
] to highlight X.
6 Use the knob along with the MOVE and WIDTH softkeys to define the region you
want to examine, then press [
SCALE AT MARKERS
] to expand that region so it fills the
X-axis.
7 If you want to scroll through the expanded X-axis data, press [
MOVE CENTER
]andturn
the knob.
The analyzer allows you to measure from the entire time-capture buffer or from a
selected region of the buffer. The X-axis scale markers help you select a measurement
region by allowing you to take a closer look at each channel of the buffer. Once
you’ve taken a closer look, you can again display all data from the selected channel by
pressing [
FULL SCALE
]. You are now ready to define the analysis region (as described
in the following task).
X-axis scale markers select the region you
want to examine.
[SCALE AT MARKERS] expands the selected
region to fill the X-axis.
Agilent 35670A
Using Time Capture Operator's Guide
7-8
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