The Prosund SP850L belongs to the cost-effective domestic SP800L series vector network analyzers, covering ultra-wide frequency range from 900 Hz to 50 GHz, with two hardware variants: 2-port and 4-port. It balances measurement precision and production cost performance, targeting applications including 5G Sub-6G, 24/28 GHz mmWave, satellite RF, automotive radar, passive & active RF components, university microwave labs and automated ATE mass production screening.

Equipped with a four-receiver fully coherent architecture, it natively supports full bidirectional amplitude-phase S-parameter (S11/S21/S12/S22) measurement. An ovenized crystal reference oscillator delivers excellent thermal drift performance. Standard multi-port calibration algorithms (UOSM/TOSM/TRL/LRL) and wear-free electronic step attenuators ensure outstanding stability during long-duration continuous mass testing.