The WRCT8-917.6-918.1-918.3-918.8-30 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 918.1 to 918.3 MHz, Bandwidth 0.2 MHz, Insertion Loss 0.6 to 2 dB, Rejection 30 dB, VSWR 1.43:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT8-917.6-918.1-918.3-918.8-30 can be seen below.