The L1b processor is designed to process raw, level0, data from the RA-2 instrument to apply engineering and other corrections. From the Level 0 data (which are basically telemetry data) the Level 1b processor is applied and output the Level 1b product. In doing this auxiliary data is used. These algorithms and the parameters used in this process shall be verified and possibly tuned. Later the output of the Level 1b will be used to produce the Level 2, which is the product commonly used by the scientific community. The investigations, modifications applied to the algorithms as results of the investigations and the final results are described in this paper.