The WRCGV8-1890-1910-1930-1950-60-1 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.91 to 1.93 GHz, Bandwidth 20 MHz, Insertion Loss 0.75 to 1 dB, Rejection 60 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV8-1890-1910-1930-1950-60-1 can be seen below.