R&S FSL Noise Figure Measurements Option (K30)
1300.2519.12 4.263 E-11
Preamplifier
Activates or deactivates the preamplifier of the R&S FSL.
Remote: INP:GAIN:STAT ON
S
chematic
Displays the schematic diagram of the test setup for the selected measurement type and the
specified frequency ranges. If the frequency ranges are changed, the schematic diagram is
updated accordingly.
– Direct measurement
The direct measurement mode is designed for DUTs without frequency–conversion, e.g.
amplifiers.
The schematic display for the direct measurement mode is shown in Fig. 4-28. The upper part
of the figure shows the setup for calibration. The lower part of the figure shows the test setup
for the measurement.
Fig. 4-28 Schematic diagram for direct measurements
– Frequency–converting measurement
The frequency–converting measurement mode is designed for frequency–converting DUTs that
have a fixed Local Oscillator (LO) frequency, for example, satellite converters with a fixed LO
frequency. .
The schematic display for the frequency–converting measurement mode is shown in Fig. 4-29.
The upper part of the figure shows the setup for calibration. The lower part of the figure shows
the test setup for the measurement.
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