Command reference
R&S
®
ZND
990
User Manual 1173.9557.02 ─ 61
Parameters:
<CenterFreq>
Center frequency of the sweep
Increment: 0.1 kHz
Default unit: Hz
Example:
*RST; :SYST:FREQ? MIN; :SYST:FREQ? MAX
Query the frequency range of the analyzer.
FREQ:CENT 100MHz
Set center frequency to 100 MHz.
FREQ:SPAN 50000
Set frequency span to 50 kHz.
Manual operation:
See
"Start Frequency / Stop Frequency / Center Frequency /
Note:
The measurement range defined by means of the center frequency and the cur-
rent span (
) must not exceed the allowed frequency
range of the analyzer. If necessary, the span is reduced to min (<CenterFreq>
–
f
MIN
,
f
MAX
–
<CenterFreq>).
[SENSe<Ch>:]FREQuency[:CW]
<FixedFreq>
[SENSe<Ch>:]FREQuency:FIXed
<FixedFreq>
Defines the fixed (Continuous Wave, CW) frequency for all sweep types operating at
fixed frequency ("Power", "Time", "CW Mode"). The two command forms
[SENSe<Ch>:]FREQuency[:CW]
and
[SENSe<Ch>:]FREQuency:FIXed
are
equivalent.
The frequency ranges are listed in
.
Note:
[SENSe<Ch>:]FREQuency[:CW]|:FIXed
is equivalent to
SOURce<Ch>:FREQuency<PhyPt>[:CW]|:FIXed
. Source and receiver frequency
are always equal; the four commands overwrite each other.
Suffix:
<Ch>
.
Channel number
Parameters:
<FixedFreq>
Fixed stimulus and analyzer frequency
*RST:
1 GHz
Default unit: Hz
Example:
FUNC "XTIMe:POW:A1"
Activate a time sweep and select the wave quantity a
1
as mea-
sured parameter for channel and trace no. 1.
FREQ:CW 100MHz
Set the CW frequency to 100 MHz.
Manual operation:
See
[SENSe<Ch>:]FREQuency:SEGMent:AXIS
<Scale>
Selects either frequency based or point based x-axis for segmented sweeps.
SCPI command reference
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