The WRCGV5-828-840-850-862-40 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 840 to 850 MHz, Bandwidth 10 MHz, Insertion Loss 0.5 to 1.25 dB, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV5-828-840-850-862-40 can be seen below.