The pre-owned Agilent 8719ES consolidates a synthesized 50 MHz-to-13.5 GHz source, tuned receiver and solid-state switching into a single chassis, delivering complete forward- and reverse-magnitude/phase measurements without external fixtures. A 100 dB dynamic range resolves subtle ripple and mismatch, while accelerated sweep and data handling keep production lines moving. Built-in vector-error correction, four simultaneous display channels and options such as time-domain or high-power test sets extend versatility.

Refurbished units ship quickly with fresh ISO-17025 calibration and current firmware, preserving Agilent reliability, SCPI automation and long-term serviceability at a fraction of new-instrument cost.