The WRCGV6-849-859-894-904-20-1 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 859 to 894 MHz, Bandwidth 35 MHz, Insertion Loss 0.65 to 1 dB, Rejection 20 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV6-849-859-894-904-20-1 can be seen below.