Description
Keysight M9384B Microwave Signal Generator Repair
The Keysight M9384B Microwave Signal Generator is a signal generator – it produces a signal of known frequency, level and modulation, which means its output attenuator and levelling loop carry the accuracy of everything it is used to test.
The Keysight M9384B Microwave Signal Generator is repaired at June Company by technicians who work on this class of instrument daily, for RF engineers, communications test teams, EMC laboratories, and manufacturing test departments. Every instrument is repaired at component level and verified against reference standards before it ships back, with the measured results documented.
Common Keysight M9384B Microwave Signal Generator problems we fix
- Cooling fan or thermal shutdown.
- Internal power supply faults.
- GPIB, LAN, USB or remote-control faults – which breaks automated test sequences while the instrument still works from the front panel.
- Display, keypad or front-panel faults.
- Output level inaccurate or not levelling – the attenuator and levelling loop, which drift together and are verified across the full output range.
- Frequency accuracy or reference drift.
- Modulation not applying correctly.
- Output attenuator relay faults.
- Harmonic or spurious performance degraded.
FAQs
Are the measurements verified after repair? Yes, against reference standards, with the measured results documented and returned with the instrument.
Output level is wrong at some settings only. What is that? Typically attenuator relay faults. They switch by range, which produces level errors on specific settings rather than everywhere.
Every repair carries a 90-day parts-and-labor warranty, with a firm quote before any work begins. Email us or submit a service request.






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