Description
Keysight P5025A Vector Network Analyzer Repair
The Keysight P5025A is a Streamline USB vector network analyzer (to ~26.5 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 internal switching, and the USB/control interface.
June Company repairs and calibrates the Keysight P5025A for RF/microwave engineering and component-test teams.
Common Keysight P5025A problems we fix
- Mechanical-switch degradation — internal step-attenuator or transfer switches wearing out and causing erratic measurements, replaced.
- Port or test-set damage — a damaged measurement port from overpower or connector wear, repaired.
- Calibration won’t hold / fails — source, receiver, or directivity faults, tracked down.
- Won’t enumerate / USB-control faults — the USB interface, restored.
- Source or receiver faults — repaired.
FAQs
My P5025A measurements are erratic — fixable? Yes. That often traces to a worn internal mechanical switch; we replace it and verify stable S-parameter measurement, with a NIST-traceable certificate.
Are the ports serviceable? Yes — port repair is routine.
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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