6-90 Chapter6
Front-Panel Key Reference
Sweep
Allows you to select a frequency range symmetrically
about the center frequency for the current segment
using the data control keys.
NOTE The order of the segments may change when you enter center frequency
or span because the sequence is based upon increasing start frequency.
Refer to the “Displaying the Trace” section above, for clarification.
Zero span is available for any or all segments. It must
be set by pressing
Span, 0, Hz. For more information on
this function, refer to “Span X Scale” on page 6-78.
Resolution BW
Allows you to select the resolution bandwidth to a value
between 1 kHz and 5 MHz for the current segment
using the data control keys. For more information on
this function, refer to “BW/Avg” on page 6-14.
Video BW
Allows you to set the video bandwidth for the current
segment to a value between 30 Hz and 3 MHz. For more
information, refer to “Video BW Auto Man” on page
6-14.
Points
Allows you to set the number of points for the current
segment. The minimum number of points in a zero span
segment is 2; in a non-zero-span segment, 101. The
maximum number of points in the total sweep is 8192.
If you exceed the number of points available in one
segment, the message: Too much data; total sweep
points limited will be displayed in the status line
(yellow on color displays). Refer to “Points” on page 6-85
for more information on this parameter.
Sweep Time
Allows you to set the sweep time for the current zero
span segment. For a non-zero span segment, the sweep
time is auto-coupled to Span, Resolution Bandwidth,
and Video Bandwidth and cannot be manually defined.
Refer to “Sweep Time” on page 6-83 for more
information. Key Access:
Sweep, Segmented, Modify,
Edit, More 1 of 2
NOTE The parameters for each segment are limited to ensure the occurrence
of only calibrated measurements.
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