The WRCT16-838-840-850-852-60 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 840 to 850 MHz, Bandwidth 10 MHz, Insertion Loss 1 to 2.25 dB, Rejection 60 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT16-838-840-850-852-60 can be seen below.