The WRCT5-909.2-909.9-910.1-910.8-40 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 909.9 to 910.1 MHz, Bandwidth 0.2 MHz, Insertion Loss 0.5 to 2.25 dB, Rejection 40 dB, VSWR 1.43:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT5-909.2-909.9-910.1-910.8-40 can be seen below.