The WRCGV12-1900-1930-1990-2020-80-1 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.93 to 1.99 GHz, Bandwidth 60 MHz, Insertion Loss 1 to 1.5 dB, Rejection 80 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV12-1900-1930-1990-2020-80-1 can be seen below.