The WRCGV10-836.5-844-864-871.5-40 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 844 to 864 MHz, Bandwidth 20 MHz, Insertion Loss 1 to 1.5 dB, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV10-836.5-844-864-871.5-40 can be seen below.