The WRCGV6-1870.5-1877.5-1882.5-1889.5-40-1 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.8775 to 1.8825 GHz, Bandwidth 5 MHz, Insertion Loss 0.65 to 1.5 dB, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV6-1870.5-1877.5-1882.5-1889.5-40-1 can be seen below.