The WRCT16-835.3-835.8-837.2-837.7-40 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 835.8 to 837.2 MHz, Bandwidth 1.4 MHz, Insertion Loss 1 to 4 dB, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT16-835.3-835.8-837.2-837.7-40 can be seen below.