Description
Keysight P9374A USB Network Analyzer Repair
The Keysight P9374A is a Streamline USB vector network analyzer (to ~20 GHz) — a 2-port VNA that connects to a PC over USB to measure S-parameters on microwave components, cables, and devices without a built-in display. As a precision microwave instrument, its faults concentrate in the source and receiver chains, the test ports, and the USB/control interface.
June Company repairs and calibrates the Keysight P9374A for RF/microwave engineering and component-test teams.
Common Keysight P9374A problems we fix
- Source power-leveling errors — the source not delivering correct stimulus power, recalibrated against standards.
- Receiver calibration drift — receiver faults making cal unstable, tracked down and recalibrated.
- Port or test-set damage — a damaged measurement port from overpower or connector wear, repaired.
- Won’t enumerate / USB-control faults — the USB interface the PC software needs, restored.
- Power or internal faults.
FAQs
My P9374A source level or cal is off — fixable? Yes. Source-leveling and receiver faults are repairable and recalibrated, then verified so it measures stable, accurate S-parameters, with a NIST-traceable certificate.
Does it reconnect to my software after repair? Yes — the USB interface is verified with the PC software.
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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