Description
Keysight P5026A Vector Network Analyzer Repair
The Keysight P5026A is a Streamline USB vector network analyzer (to ~53 GHz) — a 2-port VNA that connects to a PC over USB to measure S-parameters on microwave/mmWave 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 P5026A for RF/microwave and mmWave component-test teams.
Common Keysight P5026A problems we fix
- Test-port connector wear and damage — worn or damaged precision ports degrading S-parameter accuracy, repaired.
- Source power-level faults — the source not delivering correct stimulus power, recalibrated.
- Calibration won’t hold / fails — receiver or directivity faults making cal unstable, tracked down.
- Won’t enumerate / USB-control faults — the USB interface, restored.
- Receiver faults — low sensitivity or bad traces, repaired.
FAQs
My P5026A ports are worn or source level is off — fixable? Yes. Port and source 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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