Description
Keysight N9916A FieldFox Microwave Analyzer Repair
The Keysight N9916A is a FieldFox handheld microwave analyzer (to ~14 GHz) — a ruggedized field instrument combining cable-and-antenna analysis, vector network analysis, and spectrum analysis for microwave field work. As a precision handheld microwave instrument, its faults concentrate in the source and receiver chains, the test port, the synthesizer, and the display.
June Company repairs and calibrates the Keysight N9916A for microwave, radar, and wireless field engineers.
Common Keysight N9916A problems we fix
- Port-match / S-parameter faults — degraded port match skewing S-parameters and the Smith-chart display, repaired and recalibrated.
- Source and receiver restoration — no stimulus or low sensitivity degrading VNA/cable-antenna accuracy, repaired.
- Port-connector damage — a worn or damaged test port from field use, repaired.
- Frequency / amplitude accuracy off — synthesizer or front-end drift, recalibrated against standards.
- Touchscreen, display, or battery faults.
FAQs
My N9916A port match or readings are off — fixable? Yes. Source/receiver, synthesizer, and port faults are repairable and recalibrated, then verified so VNA, cable-antenna, and spectrum functions measure accurately, 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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