R&S SMC100A Command Description
1411.4060.32 6.27 E-1
SENSe[:POWer]:FILTer:TYPE AUTO | USER | NSRatio
The command selects the filter mode. The filter length is the multiplier for the time window and thus
directly influences the measurement time.
Parameters: AUTO
The filter length is automatically selected and adapted to the currently
measured value. With very high signals the filter length and therefore the
measurement time can be short. With very low signal levels the filter length
and therefore the measurement time is increased in order to reduce noise.
The used filter length is quereid with command
SENSe:FILTer:LENGth:AUTO.
USER
The filter length is set manually with command
SENSe:FILTer:LENGth:USER. As the filter length works as a multiplier for
the measurement time, this results in a constant measurement time.
SNRatio
The filter length (averaging factor) is automatically selected so that sensor's
intrinsic noise (2 standard deviations) does not exceed the specified noise
content. The desired noise content is set with command
SENSe:FILTer:NSRatio.
To avoid very long settling times when the power is low, the averaging factor
can be limited with the Timeout parameter (command
SENSe:FILTer:NSRatio:MTIMe) .
Example:
SENS:FILT:TYPE AUTO
'selects automatic filter selection.
*RST value Resolution SCPI
AUTO - Device specific
SENSe[:POWer]:FREQuency <frequency>
The command sets the RF frequency of the source if the user source is selected
(SENSe[:POWer]:SOURce USER.
Example:
SENS:SOUR USER
'selects user-defined source.
SENS:FREQ 2.44 GHz"
'enters the RF frequency of the source which is 2.44 GHz.
*RST value Resolution SCPI
1 GHz - Device specific
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