This datasheet details the Keysight FieldFox D-Series portable analyzers, covering frequencies from 30 kHz to 54 GHz across cable and antenna, vector network, spectrum, and combination models. Depending on configuration, FieldFox supports S-parameters, return loss, distance-to-fault, TDR, mixed-mode analysis, real-time spectrum analysis, I/Q measurements, noise figure, interference hunting, channel scanning, pulse measurements, EMI testing, 5G and LTE over-the-air analysis, mapping, and electromagnetic-field measurements. CalReady, guided calibration, ECal, QSOLT, TRL, and full two-port correction provide laboratory-grade measurement confidence in the field. Rugged battery operation, GPS, remote control, USB power sensors, broad connector support, and options for 89600 VSA software make it

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