The WRCGV8-836.5-844.5-849.5-857.5-80-1 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 844.5 to 849.5 MHz, Bandwidth 5 MHz, Insertion Loss 0.75 to 2 dB, Rejection 80 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV8-836.5-844.5-849.5-857.5-80-1 can be seen below.