Configuring the RF signal
R&S
®
SMM100A
416
User Manual 1179.1341.02 ─ 05
Remote command:
:SENSe<ch>[:POWer]:FILTer:LENGth:AUTO?
:SENSe<ch>[:POWer]:FILTer:LENGth[:USER]
Auto Once ← Sensor Settings
Searches the optimum filter length for the current measurement conditions. The result
is indicated with the parameter
.
See also
"About the measuring principle, averaging filter, filter length, and achieving
Remote command:
:SENSe<ch>[:POWer]:FILTer:SONCe
Noise/Signal Ratio ← Sensor Settings
For
, sets the noise content.
Remote command:
:SENSe<ch>[:POWer]:FILTer:NSRatio
Timeout ← Sensor Settings
For "Filter > Fixed Noise", sets a time limit for the averaging process.
Remote command:
:SENSe<ch>[:POWer]:FILTer:NSRatio:MTIMe
Default Aperture Time ← Sensor Settings
The sensor default setting is sufficient. Disable this parameter to specify a user-defined
aperture time per sensor, if, for example, the readings vary.
To obtain stable readings, set the
exactly to one modulation period.
Remote command:
:SENSe<ch>[:POWer]:APERture:DEFault:STATe
Aperture Time ← Sensor Settings
If "Use Default Aperture Time > Off", defines the acquisition time per sensor.
For example, to obtain a sufficient low average value, set the aperture time exactly to
one modulation period.
Remote command:
:SENSe<ch>[:POWer]:APERture:TIMe
S-Parameter ← Sensor Settings
Activates the use of the S-Parameter correction data of the connected power sensor.
For sensors with attenuator, this function is automatically activated.
S-Parameter correction is used to mathematically shift the reference plane to the DUT
by considering the S-parameters for any components connected upstream of the sen-
sor.
The S-Parameter table can be changed with the S-Parameters tool, provided as part of
the free R&S NRP Toolkit software. For more information, refer to the manual of the
connected R&S NRP power sensor.
Improving level performance