Rohde & Schwarz R&S UPP, Руководство пользователя

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Instrument Functions
R&S
®
UPP
534 User Manual 1411.1055.32 ─ 10
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, Bar Graph
"Lin" Linear spacing of the y-axis.
If a logarithmic unit (dB unit) has been selected in the "Unit Fnct
Track" line, this line is displayed as not user-accessible and its
parameter is set to "Lin", since it would be pointless to display mea-
sured values with a logarithmic unit on an axis with logarithmic spac-
ing.
"Log" Logarithmic spacing of the y-axis.
This parameter is available only if a linear unit whose value range
cannot contain any negative numbers (e.g. V, W, etc.) has been
selected in the "Unit Fnct Track" parameter field.
Example:
Although ∆V is a linear unit, the measurement results can be nega-
tive, which means that logarithmic display is not possible.
Remote command:
DISPlay:SWEep<n2>:A:SPACing
on page 796
DISPlay:SWEep<n2>:B:SPACing
on page 796
Top
Used to set the top value of the y-axis for Trace A or Trace B
If Auto Scale has been triggered, the value is reset on the basis of the current trace
data.
Negative values or the value 0.00000 are not permitted if Spacing = Log.
Available in the graphics subsystems
Sweep, FFT, Waveform, Bar Graph
Remote command:
DISPlay:SWEep<n2>:A:TOP
on page 796
DISPlay:SWEep<n2>:B:TOP
on page 796
Bottom
Used to set the bottom value of the y-axis for Trace A or Trace B
If Auto Scale has been triggered, the value is reset on the basis of the current trace
data.
This value must always be lower than the top value.
Negative values or the value 0.0000 are not permitted if Spacing = Log.
Curve, Spectrum and Bar Graph Display