R&S FSL Noise Figure Measurements Option (K30)
1300.2519.12 4.261 E-11
2nd Stage Correction
Activates or deactivates the second stage correction.
On
The calibration data recorded via the Cal softkey are used to correct the measurement
results. The calibration data are stored independent of the state of the option.
Off No correction is applied to the measurement results.
For details refer also to "Calibration" on page 4.248.
Remote: CORR ON
RBW
Specifies the resolution bandwidth for the measurement.
A large value improves the averaging of the display considerably, reduces the influence of
external sources of interference, and permits the fastest measurement time possible.
A low value should only be used across a very small frequency range. For measurements at low
frequencies, the RBW must be reduced to prevent the LO frequency of the analyzer from
invalidating the measurement. At receive frequencies of 100 kHz, the RBW must not exceed 10
kHz.
Remote: BAND 1MHz
Sweep Time
Specifies the time one complete measurement sweep takes. Two sweeps are performed for
each measurement step (once with noise source on, once with noise source off).
For narrow bandwidths, the sweep time should be increased in order to give accurate
measurement results.
Remote: SWE:TIME 10s
Settling Time
Specifies the time the DUT takes to settle after a noise source has been turned on or off.
Most noise sources generate an interfering DC component in addition to the noise spectrum. If
the noise source is switched on or off, low–frequency DUTs may require this settling time for
coupling capacitors to be charged or discharged.
Remote: SYST:CONF:DUT:STIM 1000MS
Average
Specifies the number of measurement sweeps over which the average is taken to produce the
displayed measurement results.
The higher the number of sweeps, the more accurate the measurement results, but the
measurement time is significantly longer.
An average value of 1 means that each displayed result is produced from one measurement
sweep. This is sufficient for most cases.
Remote: SWE:COUN 10
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