Rohde & Schwarz R&S FSL3 - Measurement Example - Measuring the R&S Fsls Intrinsic Intermodulation

R&S FSL Measuring the Spectra of Complex Signals
1300.2519.12 2.9 E-11
Measurement example – Measuring the R&S FSL's intrinsic intermodulation
Test setup:
Signal
Generator 1
Signal
Generator 2
Coupler
[- 6 dB]
R&S FSL
Signal generator settings (e.g. R&S SMU):
Level Frequency
Signal generator 1 –4 dBm 999.7 MHz
Signal generator 2 –4 dBm 1000.3 MHz
Procedure:
1. Set the R&S FSL to its default settings.
 Press the PRESET key.
The R&S FSL is in its default state.
2. Set center frequency to 1 GHz and the frequency span to 3 MHz.
 Press the FREQ key and enter 1 GHz.
 Press the SPAN key and enter 3 MHz.
3. Set the reference level to –10 dBm and RF attenuation to 0 dB.
 Press the AMPT key and enter –10 dBm.
 Press the RF Atten Manual softkey and enter 0 dB.
4. Set the resolution bandwidth to 10 kHz.
 Press the BW key.
 Press the Res BW Manual softkey and enter 10 kHz.
The noise is reduced, the trace is smoothed further and the intermodulation products can be
clearly seen.
 Press the Video BW Manual softkey and enter 1 kHz.