The WRCGV12-1940-1947.5-1952.5-1960-80-3 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.9475 to 1.9525 GHz, Bandwidth 5 MHz, Insertion Loss 1 to 2.5 dB, Rejection 80 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV12-1940-1947.5-1952.5-1960-80-3 can be seen below.