The WRCGV12-1822.5-1830-1855-1862.5-30 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.83 to 1.855 GHz, Bandwidth 25 MHz, Insertion Loss 1 to 1.25 dB, Rejection 30 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV12-1822.5-1830-1855-1862.5-30 can be seen below.