The WRCGV10-841.5-849-869-876.5-40-1 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 849 to 869 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 WRCGV10-841.5-849-869-876.5-40-1 can be seen below.