The WRCT8-946.5-947.3-947.7-948.5-40 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 947.3 to 947.7 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 WRCT8-946.5-947.3-947.7-948.5-40 can be seen below.