The WRCGV12-1775-1785-1805-1815-75-1 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.785 to 1.805 GHz, Bandwidth 20 MHz, Insertion Loss 1 to 2.5 dB, Rejection 75 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV12-1775-1785-1805-1815-75-1 can be seen below.