Improving Level Performance
R&S
®
SMA100B
222User Manual 1178.3834.02 ─ 05
7.4.4 NRP Power Analysis
With a connected R&S NRP power sensor, the R&S SMA100B enables the analysis of
power measurements of DUTs. You can analyze the measured power under frequency,
power and time aspects, while the instrument supports you with marker, graphic and
reference value functions.
7.4.4.1 About
Characteristics and features of the NRP power analysis function
The NRP analysis displays the measurement data graphically. The measurement dia-
gram covers up to four traces you can manually or automatically assign to one or more
connected power sensors. For evaluation of the readings, you can save a defined ref-
erence trace or even freeze a reading temporarily on the screen. In addition, Markers
and mathematic functions enable you to compare particular values.
The NRP analysis supports three measurement modes:
●
Power versus frequency (frequency response).
For this mode, all required generator settings are automatically configured except
for the power level. The power level setting of the generator is used for the fre-
quency sweep measurements.
The frequency sweep settings are transferred to the sensor to automatically calcu-
late the correct measurement value for each frequency point.
●
Power versus power (power sweep, AM/AM)
Power sweep measurements are executed using the frequency settings of the gen-
erator. Alternatively, the sensor can be adjusted to a frequency different from the
generator, see Use Separate Frequency- Power Analysis .
This frequency is transmitted to the sensor to automatically calculate the correct
measurement value.
●
Power versus time (power measurement in the time domain R&S NRP trace
mode).
In the time mode, you can analyze the signal of the generator but also externally
supplied signals. This mode requires an additional trigger event, with selectable
level, hysteresis and drop time. Provided the sensor used supports the power mea-
surement of pulse signals, you can also analyze pulse data in time domain.
Using Power Sensors
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