The WRCJV8-1880-1890-1910-1920-40-2 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.89 to 1.91 GHz, Insertion Loss 0.75 to 1.75 dB, Rejection 40 dB, VSWR 1.50:1, Center Frequency 1.9 GHz. Tags: Module with Connectors, Cavity Filter. More details for WRCJV8-1880-1890-1910-1920-40-2 can be seen below.