The WRCGV12-1735-1750-1785-1800-80 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.75 to 1.785 GHz, Bandwidth 35 MHz, Insertion Loss 1 to 3 dB, Rejection 80 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV12-1735-1750-1785-1800-80 can be seen below.