Rohde & Schwarz R&S UPP, Руководство пользователя

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Instrument Functions
R&S
®
UPP
285 User Manual 1411.1055.32 ─ 10
. The hardware remains unchanged and the prior status is displayed.
5.9 Sweeps
With many generator functions, it is advisable to output the signal parameters (level
and frequency) not only statically but also to vary them over time. Varying one or more
of the signal parameters is referred to as a (generator) sweep. The measured values
obtained can be, but do not have to be, recorded as series of measured values.
The R&S UPPhas a highly flexible sweep system for this purpose, in which up to two
generator parameters or one analyzer parameter (variation of the center frequency of
the RMS selective filter) can be varied in a wide variety of ways. When the generator
sweep is switched on, any active analyzer sweep is switched off and vice versa.
The sweep results (measured value series) can be displayed graphically (as a 2-D
curve display in a sweep window) or numerically (as a sweep list, see
Chapter 5.9.6,
"List sweep" , on page 295). With the graphical display, the 1st sweep parameter is
usually plotted on the x-axis, the recorded measured value on the y-axis and the
optional 2nd sweep parameter on the z-axis (not visible in the 2-D graph). A Z sweep is
therefore equivalent to a sweep with two parameters (2-dimensional sweep).
However, the x-axis can also be determined by the measured frequency ( "X-Source "
= Frequency) or the measured level ( "X-Source " = LevMon…).
Up to 8 measured values can be recorded for each sweep point (in 4 sweep windows
each with 2 traces). To plot a specific measurement parameter, the following setting
has to be made in (at least) one of the four sweep display panels:
●
the X-Source must be set to Sweep or the desired measurement function,
●
(at least) one trace must be set to the desired Y-measurement function.
You can also set multiple traces to one measurement function, for example, to be able
to measure them using different marker and/or cursor settings.
The generator sweeps can be configured in many different ways and can be distin-
guished according to the following characteristics:
●
According to the number of varied signal parameters in 1 or 2-dimensional
sweeps (known as Z-Sweeps).
●
According to the stepping condition into synchronous and time-triggered
sweeps .
Sweeps