Table of Contents
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Function Reference
Sensitivity
CALCulate[1|2|3|4|5|6]:MARKer[1|2|3|4]:MAXimum
Remote
CALCulate[1|2|3|4|5|6]:MARKer[1|2|3|4]:MINimum
Commands
Sensitivity
Requests the lowest amplitude signal that can be measured relative to the
power at "top of screen". It is defined as the signal that is six times the RMS
noise. The minimum setting is –100 dB. An error will be reported for values
outside of this range and the sensitivity will round to the nearest valid sensitiv-
ity.
Manual allows manual input of sensitivities and enables auto gain ranging.
The "top of screen" and the sensitivity setting determines the requested
dynamic range. The system will sweep once per gain stage and may require up
to three sweeps to achieve the requested dynamic range.
Auto automatically chooses a sensitivity and a single gain range based on "top
of screen". This will result in approximately 40 dB of dynamic range.
N o t e
The sweep time (ST) that is displayed in the lower portion of the display is the
time for the WDCA to sweep over one gain stage. The WDCA may take up to
three sweeps in three different gain stages to make the measurement. This
depends on the settings for sensitivity, reference level, auto range and also the
particular device being measured. The final data trace is a blended composite
of each trace taken in the different gain stages. For more information refer to
"Optimizing the Sensitivity Setting" on page 3-32 and to "Increase in Sweep
Time" on page 3-32.
Key Path
Amplitude > Sensitivity
Related Functions
Amplitude Setup (Auto Ranging), Reference Level
(Automatic) SENSe: POWer:DC:RANGe:LOWer:AUTO
Remote
(Manual) SENSe: POWer:DC:RANGe:LOWer
Commands
2-54
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