The WRCT16-857.8-858.3-859.7-860.2-40 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 858.3 to 859.7 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 WRCT16-857.8-858.3-859.7-860.2-40 can be seen below.