The WRCJV12-5517.5-5532.5-5542.5-5557.5-50 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 5.5325 to 5.5425 GHz, Insertion Loss 2 to 3 dB, Rejection 50 dB, VSWR 1.67:1, Center Frequency 5.5375 GHz. Tags: Module with Connectors, Cavity Filter. More details for WRCJV12-5517.5-5532.5-5542.5-5557.5-50 can be seen below.