The WRCT8-937.5-940-945-947.5-50-3 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 940 to 945 MHz, Bandwidth 5 MHz, Insertion Loss 0.6 to 1.5 dB, Rejection 50 dB, VSWR 1.43:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT8-937.5-940-945-947.5-50-3 can be seen below.