The WRCT16-834.5-835.5-840.5-841.5-40 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 835.5 to 840.5 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 WRCT16-834.5-835.5-840.5-841.5-40 can be seen below.