The WRCGV12-861.5-869-894-901.5-30-4 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 869 to 894 MHz, Bandwidth 25 MHz, Insertion Loss 1.25 to 1.5 dB, Rejection 30 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV12-861.5-869-894-901.5-30-4 can be seen below.