The WRCD5-1876-1878.5-1881.5-1884-30-1 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.8785 to 1.8815 GHz, Bandwidth 3 MHz, Insertion Loss 0.75 to 1.5 dB, Rejection 30 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCD5-1876-1878.5-1881.5-1884-30-1 can be seen below.