R&S NRP-Z28/-Z98
Remote Control - Commands
1170.8966.12
6.17
E-4
If the measurement path is selected manually (
SENSe:RANGe:AUTO OFF
), the currently selected
measurement path is output. With automatic selection, the last path that was set manually is output.
Since this setting has been saved, it is immediately reset after deactivating the automatic function.
Default setting:
2
(least sensitive path)
SENSe:RANGe:AUTO[?] OFF | ON
SENSe:RANGe:AUTO ON
activates the automatic selection of the measurement path and
SENSe:RANGe:AUTO OFF
deactivates it.
The query yields
•
1
for
OFF,
•
2
for
ON.
Default setting:
ON
SENSe:RANGe:CLEVel[?] –20.0 to 0.0
SENSe:RANGe:CLEVel
is used to reduce the transition range between measurement paths 1 and 2 or
2 and 3 by the indicated value (in dB). This can improve the measurement accuracy for signals with a
high
peak-to-average
ratio, since the headroom for modulation peaks becomes larger. The
disadvantage is that the S/N ratio is reduced at the lower limits of the transition ranges.
The query yields the offset of transition ranges between measurement channels 1 and 2 or 2 and 3.
Default setting:
0.0 [dB]
SENSe:SAMPling[?] FREQ1 | FREQ2
SENSe:SAMPling
is used to vary the sampling frequency of the analog-digital converter in the sensor.
With parameter specification
FREQ1
the sampling frequency is 134.400 kHz, and 119.467 kHz with
parameter
FREQ2
. This is provided to suppress interfering low-frequency mixture products from signal
components and the sampling frequency.
The query yields
•
1
for
FREQ1,
•
2
for
FREQ2.
Default setting:
FREQ1
SENSe:SGAMma:CORRection:STATe[?] OFF | ON
SENSe:SGAMma:CORRection:STATe ON
initiates the use of the complex reflection coefficient
DUT
of
the DUT defined with
SENSe:SGAMma:MAGNitude
and
SENSe:SGAMma:PHASe
for the correction of
interactions between the sensor and the DUT. This makes it possible to determine the power
P
fed to
the DUT with considerably greater accuracy. The equivalent reflection coefficient
eq
of the sensor,
which is also required for the correction, is prestored in the calibration data memory for a large number
of frequencies.
