The WRCT16-861-863-879-881-50 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 863 to 879 MHz, Bandwidth 16 MHz, Insertion Loss 1 to 2 dB, Rejection 50 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT16-861-863-879-881-50 can be seen below.