The WRCGV5-810-830-845-865-40-2 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 830 to 845 MHz, Bandwidth 15 MHz, Insertion Loss 0.5 to 0.6 dB, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV5-810-830-845-865-40-2 can be seen below.