Rohde and Schwarz FSL-K30 - Noise Figure and Gain Measurements Option

The R&S FSL-K30 application firmware provides the R&S FSL spectrum analyzer with features otherwise only provided by special noise measurement analyzers.

The following parameters can be measured at a specified frequency or in a selectable frequency range:

• Noise figure in dB
• Noise temperature in K
• Gain in dB

Compared with conventional noise measurement systems, R&S FSL-K30 has the advantage that a wide variety of further RF measurements can also be performed. The R&S FSL also allows the measurement of harmonics, intermodulation, spurious responses and many other RF relevant criteria (for measurements on amplifiers and on frequency-converting DUTs, e.g. low-noise converters).

Noise measurements

• Measurement range 0 dB to 35 dB
• Resolution 0.01 dB
• Measurement accuracy ±0.3 dB (measurement with external preamplifier (gain 30 dB, noise figure < 5 dB) and 1 MHz resolution bandwidth, valid for DUTs with noise figure 1 dB to 10 dB and gain > 10 dB)

Gain measurements

• Measurement range 0 dB to 60 dB
• Resolution 0.01 dB
• Measurement accuracy ±0.2 dB (measurement with preamplifier (gain 30 dB, noise figure < 5 dB) and 1 MHz resolution bandwidth)

Required hardware

• R&S FSL-B5 noise source power supply (via 28 V connector on the R&S FSL rear panel)
• Noise source, e.g. NoiseCom NC346
• External preamplifier (for improved accuracy and repeatability of measurements)