The SP900H is rugged portable all-in-one RF microwave tester under Prosund SP900H series, continuous wide frequency coverage from 30kHz to 26.5GHz, industrial reinforced handheld chassis integrating six core functions: spectrum analyzer, VNA, noise figure analyzer, IQ vector demodulation, TDR cable/antenna test and GPS field mapping, replacing multiple bench instruments for field base station survey, radar on-site debugging, wireless module field sampling, automotive millimeter-wave radar inspection, communication maintenance and field metrology calibration.