Description
Rohde & Schwarz FSW8 Spectrum Analyzer Repair
The Rohde & Schwarz FSW8 is a high-end signal and spectrum analyzer covering up to 8 GHz — a top-tier bench analyzer with wide analysis bandwidth and very low phase noise for demanding RF, wireless, and EMC work. As a precision RF receiver, its faults concentrate in the RF front-end (mixer, attenuator, YIG/LO), the synthesizer, the IF/ADC path, and the display.
June Company repairs and calibrates the R&S FSW8 for RF, wireless, broadcast, and EMC test teams.
Common R&S FSW8 problems we fix
- Mixer or front-end faults — front-end damage (often from overload) degrading sensitivity and accuracy, repaired.
- YIG-oscillator / LO recalibration — the tuned oscillator drifting or failing, repaired and recalibrated.
- Attenuator faults — the input step attenuator not switching correctly, repaired.
- Amplitude or frequency accuracy off — front-end or synthesizer drift, recalibrated against standards.
- Display or interface faults.
FAQs
My FSW8 sensitivity dropped — fixable? Yes. Front-end, LO, and attenuator faults are repairable and recalibrated, then verified so amplitude and frequency accuracy are restored, with a NIST-traceable certificate.
Is it calibrated across its range? Yes — verified against our reference standards.
Every repair includes NIST-traceable calibration and a 90-day parts-and-labor warranty. Email us or submit a service request.






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