The WRCT8-858-858.8-859.2-860-40-2 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 858.8 to 859.2 MHz, Bandwidth 0.4 MHz, Insertion Loss 0.6 to 2 dB, Rejection 40 dB, VSWR 1.43:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT8-858-858.8-859.2-860-40-2 can be seen below.