The WRCGV10-1900-1920-1980-2000-45-4 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.92 to 1.98 GHz, Bandwidth 60 MHz, Insertion Loss 0.75 to 1.25 dB, Rejection 45 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV10-1900-1920-1980-2000-45-4 can be seen below.