The WRCGV12-1744.9-1759.9-1774.9-1789.9-80 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.7599 to 1.7749 GHz, Bandwidth 15 MHz, Insertion Loss 1 to 2 dB, Rejection 80 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV12-1744.9-1759.9-1774.9-1789.9-80 can be seen below.