Rohde & Schwarz R&S UPP, Руководство пользователя

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Instrument Functions
R&S
®
UPP
296 User Manual 1411.1055.32 ─ 10
The sweep points are processed by the sweep system in the order in which they are
listed. To define the list sweep as an upward or downward sweep, the sweep points
must be entered in the appropriate order. Whereas in a normal sweep each sweep
point is measured once only within a scan, the list sweep also offers the ability to mea-
sure individual sweep points a multiple number of times. This is achieved by entering
the relevant sweep point in the list an appropriate number of times.
The list is usually loaded as a file. It must contain at least two (different) points. For the
format of the list, refer to
Chapter 5.52.3, "Sweep Lists" , on page 603.
A maximum of 1024 points are available for each sweep axis; if the list contains more
than 1024 values, only the first 1024 points are loaded. The first and last points in the
list define the sweep direction. If the list contains a point which does not comply with
this direction, the point and all subsequent points are ignored.
The first and last (valid) point of the sweep list mark the region of interest of the x-axis
and thus are used as the x-axis scaling in the sweep graphs if the scaling of the x-axis
is set to Auto.
When the sweep list is being loaded, a check is made to see whether the actual basic
measurement unit of the sweep file matches the sweep parameter. In addition to the
R&S
UPP list format (preferably with the extension *.SWL), files are also accepted
that originate from the predecessor instruments, R&S UPL and R&S UPD.
If the z-axis of the two-dimensional sweep is defined as a list containing more than 20
points, only the last 20 scans are available as the data set (for saving and rescaling the
graph). If you want to store a two-dimensional sweep as a complete trace data record,
the number of points of the z-axis must not exceed 20.
Tot Volt File, Volt File
Used to enter the file name for the list of the level sweep parameter (level sweep list).
Only visible with generator list sweep activated.
Which signal parameter is actually swept (the level of a single sine-wave line or the
total level of a multi-tone signal) depends on the selected generator function.
Remote command:
MMEMory:LOAD:VOLTage
on page 718
Freq File, Upp Freq File, Mean Freq File
Used to enter the file name for the list of the frequency sweep parameter (frequency
sweep list). Only visible with generator list sweep activated.
Which signal parameter is actually swept (the frequency of a single sine-wave line or
the center frequency of a two-tone signal) depends on the selected generator function.
Remote command:
MMEMory:LOAD:FREQuency
on page 718
Sweeps