Rohde & Schwarz R&S SGS100A - Default Aperture Time; Filter Length; Timeout

Signal generator settings
R&S
®
SGS100A
123User Manual 1173.9105.02 ─ 13
"User"
The filter length is defined manually, with the parameter Filter Length.
As the filter length works as a multiplier for the time window, constant
filter length results in a constant measurement time.
Values 1 and 2N are allowed.
"Fixed Noise"
The averaging factor is taken automatically in accordance to the
value Noise Content. Thus, the sensor's intrinsic noise (2 standard
deviations) does not exceed the specified noise content.
To avoid long measurement times when the power is too low, set a
Timeout.
Timeout is the maximum acceptable measurement time which limits
the averaging factor and therefore leads to a more unstable readout.
Remote command:
:SENSe<ch>[:POWer]:FILTer:TYPE on page 255
Filter Length ← Sensor Settings
Sets or indicates the filter length, depending on the selected filter mode.
●
"Filter > Auto" indicates the automatically adjusted filter length.
●
"Filter > User" enables you to set the filter length manually.
●
"Filter > Fixed Noise" hides the setting parameter.
Remote command:
:SENSe<ch>[:POWer]:FILTer:LENGth:AUTO? on page 253
:SENSe<ch>[:POWer]:FILTer:LENGth[:USER] on page 254
Auto Once ← Sensor Settings
Searches the optimum filter length for the current measurement conditions. The result
is indicated with the parameter Filter Length.
See also "About the measuring principle, averaging filter, filter length, and achieving
stable results" on page 118.
Remote command:
:SENSe<ch>[:POWer]:FILTer:SONCe on page 255
Noise Content ← Sensor Settings
For Filter > Fixed Noise, sets the noise content.
Remote command:
:SENSe<ch>[:POWer]:FILTer:NSRatio on page 254
Timeout ← Sensor Settings
For "Filter > Fixed Noise", sets a time limit for the averaging process.
Remote command:
:SENSe<ch>[:POWer]:FILTer:NSRatio:MTIMe on page 254
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 Aperture Time exactly to one modulation period.
Remote command:
:SENSe<ch>[:POWer]:APERture:DEFault:STATe on page 252
Level and power-on settings