Network Analyzers — Buy & Sell Used Network Analyzers

For a network analyzer, the specs that matter most are measurement type (vector vs scalar), frequency range, number of ports, and dynamic range. A vector network analyzer (VNA) measures both magnitude and phase, which you need for full S-parameter characterization, time-domain analysis, and de-embedding; a scalar analyzer measures magnitude only. Port count is a workflow decision — two ports handle most filters and amplifiers, while four ports are required for differential and multiport device testing. Frequency range must bracket your device, and dynamic range determines how deep a rejection or how low an insertion loss you can measure accurately.

Used value hinges on installed frequency and port options plus the calibration accessories that come with the unit. Platforms like Keysight's PNA/ENA/FieldFox, R&S ZNB/ZNA, and Anritsu VectorStar/ShockLine frequently license top frequency, additional ports, time-domain, and measurement applications as keys. Just as important, a VNA is only usable with a calibration kit or an electronic calibration (ECal) module in the correct connector type — and those accessories are expensive, so a unit that includes a matching ECal and cal kit is worth noticeably more. Connector wear and a current calibration certificate also factor into price.

Refurbished VNAs typically run 40-70% below new, and a well-maintained unit performs identically to a current one for the same frequency and port configuration. Mid-range benchtop models (Keysight ENA, R&S ZNB) offer the strongest value, while high-end microwave systems like the PNA-X reach well into six figures new. Whether you're sourcing a unit or retiring one, send us the model, its options, and any cal kit or ECal included, and we'll quote within one business day.