The WRCT16-831.5-832.5-837.5-838.5-40-1 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 832.5 to 837.5 MHz, Bandwidth 5 MHz, Insertion Loss 1 to 2.5 dB, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT16-831.5-832.5-837.5-838.5-40-1 can be seen below.