User Manual

Spectrum Analysis
R&S
®
Scope Rider RTH
119User Manual 1326.1578.02 ─ 08
State
If enabled, a peak search is performed on the current spectrum results and the speci-
fied Number of Markers are displayed.
Remote command:
SPECtrum:MARKer[:STATe] on page 314
Number of Markers
Defines the maximum number of markers used to indicate peaks in the spectrum
results. With 3 active markers, the 3 peak values in the spectrum are indicated. Note
that if fewer peaks are detected than the specified maximum number of markers, fewer
markers are displayed.
Remote command:
SPECtrum:MARKer:COUNt on page 314
SPECtrum:MARKer:RCOunt? on page 316
Threshold
Defines an absolute level threshold as an additional condition for the peak search.
Only peaks that exceed the threshold are detected.
Remote command:
SPECtrum:MARKer:SETup:MLEVel on page 315
Peak excursion
Defines a relative threshold, the minimum level value by which the waveform must rise
or fall to be considered a peak. To avoid identifying noise peaks, enter a peak excur-
sion value that is higher than the noise levels.
The following figure shows a spectrum display:
28 dB 42 dB
1
2
Spectrum Mode (Option R&S RTH-K18)