The WRCA6-914-920-924-930-50-2 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 920 to 924 MHz, Bandwidth 4 MHz, Insertion Loss 0.6 to 0.7 dB, Rejection 50 dB, VSWR 1.33:1. Tags: Module with Connectors, Cavity Filter. More details for WRCA6-914-920-924-930-50-2 can be seen below.