The WRCGV10-837-849-859-871-80-1 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 849 to 859 MHz, Bandwidth 10 MHz, Insertion Loss 1 to 1.5 dB, Rejection 80 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV10-837-849-859-871-80-1 can be seen below.