The WRCT40-1911.5-1912.5-1932.5-1933.5-50-3 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.9125 to 1.9325 GHz, Bandwidth 20 MHz, Insertion Loss 3.5 to 6.5 dB, Rejection 50 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT40-1911.5-1912.5-1932.5-1933.5-50-3 can be seen below.