The WRCGV12-1747.5-1757.5-1777.5-1787.5-75 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.7575 to 1.7775 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 WRCGV12-1747.5-1757.5-1777.5-1787.5-75 can be seen below.