The WRCGV8-1852-1870-1890-1908-60-1 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.87 to 1.89 GHz, Bandwidth 20 MHz, Insertion Loss 0.75 to 1.5 dB, Rejection 60 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV8-1852-1870-1890-1908-60-1 can be seen below.