The WRCGV6-830-840-850-860-25 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 840 to 850 MHz, Bandwidth 10 MHz, Insertion Loss 0.65 to 0.75 dB, Rejection 25 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV6-830-840-850-860-25 can be seen below.