The Prosund SP826L is a domestic general-purpose vector network analyzer in the SP800L series, covering a full RF microwave range of 900 Hz ~ 26.5 GHz, offered in two hardware variants: 2-port basic model and 4-port multi-function model. It balances R&D measurement accuracy and mass-production sweep speed, serving as a mainstream cost-effective microwave test instrument for 5G Sub-6G, passive RF components, power amplifiers, automotive RF, satellite communication and university teaching labs.

Equipped with a four-receiver fully coherent architecture, it natively supports synchronous bidirectional measurement of full S-parameters (S11/S21/S12/S22). An integrated ovenized reference oscillator delivers excellent thermal stability. Full multi-port calibration algorithms (UOSM/TOSM/TRL) come standard, paired with wear-free electronic step attenuators for outstanding long-term stability during continuous mass production testing.