R&S ESR Series User Manual page 818

®
R&S ESR
Example:
11.5.1.14 Performing List Evaluations
The commands of this subsystem are used for measuring the power at a list of fre-
quency points with different device settings. The measurement is always performed in
zero span. A new trigger event is required for each test point (exception: trigger "FREE
RUN").
The results are output as a list in the order of the entered frequency points. The num-
ber of results per test point depends on the number of concurrently active measure-
ments (peak/RMS/average). The number of frequencies is limited to 200 entries.
Selection of concurrently active measurements and setting of parameters that are con-
stant for the whole measurement is performed via a configuration command
]LIST:POWer:SET). This also includes the setting for trigger and gate parameters.
Settings that are not directly included in commands of this subsystem can be config-
ured by sending the corresponding commands prior to the [SENSe:]LIST:... com-
mands.
Please note that changes to the trigger level have to be executed in zero span in order
to take effect for the [SENSe:]LIST:... commands.
The commands of this subsystem can be used in two different ways:
●
Instrument setup, measurement and querying of the results in a single command
line. With this method, there is the least delay between the measurement and the
result output. However, it requires the control computer to wait for the response
from the instrument.
User Manual 1175.7068.02 ─ 12
Remote Commands in Spectrum Analyzer Mode
Sample setting:
SENSe:MPOWer 935.2MHz,1MHz,434us,VIDEO,50PCT,
5us,MEAN,20
Performs a measurement sequence with the following settings:
Frequency = 935.2 MHz,
Resolution bandwidth = 1 MHz
Measurement time = 434 µs
Trigger source = VIDEO
Trigger threshold = 50 %
Trigger offset = 5 µs
Type of measurement = MEAN power
No. of measurements = 20
Sample query:
SENSe:MPOWer? 935.2MHz, 1MHz, 434us, VIDEO,
50PCT, 5us, MEAN, 20
Performs the same measurement and in addition returns the
results list immediately after completion of the last measure-
ment.
Sample result:
18.3,18.6,18.1,18.0,17.9,18.3,18.6,18.1,18.0,17.9,18.3,18.6,18.
1,18.0,17.9,18.3,18.6,18.1,18.0,17.9
Remote Control
([SENSe:
815