The WRCGV10-866-874-879-887-80-1 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 874 to 879 MHz, Bandwidth 5 MHz, Insertion Loss 1 to 1.5 dB, Rejection 80 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV10-866-874-879-887-80-1 can be seen below.