The Prosund SP850P belongs to the flagship high-performance SP800P series of vector network analyzers, a domestic high-end microwave RF test instrument covering an ultra-wide frequency range from low frequency 900 Hz up to 50 GHz mmWave. It is available in 2-port and 4-port hardware configurations, targeting high-precision R&D and automated ATE mass production tests for 5G mmWave, satellite RF, radar, power amplifiers, filters and multi-channel phased arrays.

Equipped with a four-receiver fully coherent architecture, it natively supports full four-term bidirectional S-parameter (S11/S21/S12/S22) synchronous measurement, with an integrated built-in LO, enabling vector network testing without external signal generators. The 12.1-inch high-definition multi-touch screen comes standard, with full multi-port calibration algorithms (UOSM, TOSM, TRL) pre-installed, compatible with mechanical calibration kits and ECal electronic calibration units. Fixture de-embedding, port extension and auto error correction greatly improve measurement accuracy for multi-channel and wideband devices.