Instructions

Fernsteuerbefehle
R&S
®
Scope Rider RTH
356Bedienhandbuch 1326.1578.03 ─ 10
In FFT mode, this command is query-only.
Parameter:
<MagnitudeUnit> DBM | DBV | DBA
*RST: DBM
SPECtrum:FREQuency:SAMPle?
Queries the sample rate with which FFT analysis is performed. This command is only
available in FFT mode.
Rückgabewerte:
<FFTSmpFreq> Bereich: 1 bis 10E+9
Inkrement: 10
*RST: 1
Std-einheit: Hz
Verwendung: Nur Abfrage
SPECtrum:FREQuency:SPAN:MODE <Mode>
Defines how many values are analyzed by a single FFT, and thus the frequency reso-
lution.
Parameter:
<Mode> NARRow | MAX
NARRow
8k values analyzed per FFT; time scale ≥ 100 ms/div
MAX
64k values analyzed per FFT; time scale ≥ 1 us/div
*RST: MAX
SPECtrum:FREQuency:SPAN[:VALue] <HorizontalSpan>
Queries or defines the used span, that is: how many values are analyzed by a single
FFT.
In FFT mode, this command is query-only.
Parameter:
<HorizontalSpan> 8E+6 | 64E+6
Bereich: 1000 bis 500E+6
Inkrement: 10
*RST: 500E+6
Std-einheit: Hz
SPECtrum:FREQuency:STARt <HorizontalStart>
Queries or defines the start frequency of the used span. The value depends on the
SPECtrum:FREQuency:SPAN:MODE and CHANnel<m>:BANDwidth parameters.
Spektrumanalyse