User Manual

Spectrum Analysis
R&S
®
Scope Rider RTH
128User Manual 1326.1578.02 ─ 08
Remote command:
HARMonic:RESult<m>:HARMonics<n>:LIMit? on page 326
HARMonic:RESult<m>:HARMonics<n>:LIMCheck? on page 325
HARMonic:RESult<m>:HARMonics<n>:LIMViolation? on page 326
(7) Power level scale
Indicates whether the bargraph results are displayed in percent or dB.
Remote command:
HARMonic:SCALe on page 322
(8) Input channel
Harmonics measurement is performed on the data captured from one of the active
input channels. The measurement can be performed on all channels simultaneously.
The bars and numeric results for each channel are displayed in the same color as the
channel indicator.
Remote command:
CHANnel<m>:STATe on page 252
(9) Result type for numeric results
Either the currently measured numeric values, or the minimum or maximum values can
be displayed. The selected result type is indicated above the diagram. The bargraph
always displays both the current and the maximum values.
In addition, an average over several measurements can be calculated (not indicated in
the diagram.)
Remote command:
HARMonic:STATistic on page 322
(10) Operating status
Indicates the status of the harmonic measurement ("Hold"/"Run").
(11) Error indicator
If an error occurs during the measurement, an indicator is displayed above the bar-
graph. These indicators remain visible thoughout the measurement, for all acquisitions.
In addition, the long form of the error is indicated, blinking, for the duration of the acqui-
sition in which an error occurs only.
The following errors may be indicated:
●
"C" (Clipping)
The amplitudes determined for each frequency must be within the currently defined
amplitude range in order to be measured correctly. If the signal is not entirely within
the defined range, a "Clipping" message is displayed next to the channel indicator
in the numeric result area of the screen. The measurement is invalid and no results
are calculated.
To change the amplitude range, use the RANGE keys or the AUTOSET function.
●
"F" (Frequency)
If the specified fundamental frequency ±10 % is not detected in the signal, the
measurement is invalid.
●
"L" (Limit)
Harmonics Measurement (Option R&S
RTH-K34)