The WRCJV12-1727.5-1737.5-1757.5-1767.5-80-3 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.7375 to 1.7575 GHz, Bandwidth 20 MHz, Insertion Loss 1 to 3 dB, Rejection 80 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCJV12-1727.5-1737.5-1757.5-1767.5-80-3 can be seen below.