The WRCJV8-1940-1950-1970-1980-40-3 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.95 to 1.97 GHz, Bandwidth 20 MHz, Insertion Loss 0.75 to 1.75 dB, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCJV8-1940-1950-1970-1980-40-3 can be seen below.