The WRCGV5-1880-1955-1975-2050-70-1 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.955 to 1.975 GHz, Bandwidth 20 MHz, Insertion Loss 0.4 to 0.5 dB, Rejection 70 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV5-1880-1955-1975-2050-70-1 can be seen below.