Rohde & Schwarz R&S UPP, Руководство пользователя

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Instrument Functions
R&S
®
UPP
551 User Manual 1411.1055.32 ─ 10
Sweep, FFT, Waveform
"Manual" Manual scaling
The scaling of a graphical display is determined using the "Left " and
"Right " parameter fields below.
Each time the "Manual " parameter is set, the graphical display is
deleted and then replotted with the scale end values entered under
"Left " and "Right ".
"Auto" Automatic scaling
Auto Scale uses suitable default values for
one-off scaling of the x-
axis. These values depend on the measurement task and the subsys-
tem (e.g. the start/stop values of the sweep or FFT are used in the
generator and analyzer panel).
The entry fields for the "Left " and "Right " parameter fields below are
displayed in gray (cannot be accessed) with the obtained values.
Remote command:
DISPlay:SWEep<n2>:X:SCALing
on page 802
Spacing
Linear or logarithmic spacing of the x-axis.
For logarithmic units (dB units) and linear units in which negative numbers can occur
(e.g. ∆V, ∆W), this parameter field is displayed as not user-accessible and is set to
"Lin", since it makes no sense / is not possible to display dB values or negative values
logarithmically.
Available in the graphics subsystems
Sweep, FFT, Waveform
"Lin" Linear spacing of the x-axis.
"Log" Logarithmic spacing of the x-axis.
Remote command:
DISPlay:SWEep<n2>:X:SPACing
on page 802
Left
Used to set the left-hand value on the x-axis.
This parameter field can only be accessed if "Scaling" = "Manual" is selected.
Negative values or the value 0.00000 are not permitted if "Spacing" = "Log".
Available in the graphics subsystems
Sweep, FFT, Waveform
Remote command:
DISPlay:SWEep<n2>:X:LEFT
on page 801
Right
Curve, Spectrum and Bar Graph Display