Improving level performance
R&S
®
SMA100B
245User Manual 1178.3834.02 ─ 09
Each log file contains the measured value (2 readings when you work with peak sen-
sors), the sensor type, and the measurement time (timestamp). Logged data is not
overwritten. When a new measurement is started, the collected logging data is appen-
ded in the log file.
Check the used disc space regularly and remove log files to maintain storage capacity.
Note: The logging function is intended for measurements with long time intervals. It is
suitable source for data reconstructions if the connection to the sensor was interrupted.
Remote command:
:SENSe<ch>[:POWer]:LOGGing:STATe on page 558
8.4.4 NRP-Z power analysis
The NRP-Z power analysis functionality enables you to analyze the measured power of
a DUT in frequency, power or time domain. The instrument provides marker, graphic
and reference value functions.
8.4.4.1 Required options
The NRP-Z power analysis function requires the power analysis option installed on
your instrument, and a sensor that supports power analysis.
R&S SMA100B base unit equipped with the following option:
●
Power Analysis (R&S SMAB-K28)
R&S NRP power sensors:
●
R&S NRP-Z8x, referred to in the following description
●
R&S NRP-Z91
●
R&S NRP-Z211
For more information, see data sheet.
8.4.4.2 About
Characteristics and features of the NRP-Z power analysis function
The NRP-Z power analysis displays the measurement data graphically. The measure-
ment diagram 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 reference trace or even freeze a reading temporarily on the screen. Markers
and mathematic functions enable you to compare particular values.
The NRP-Z power 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.
Using power sensors
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