The WRCGV5-1527-1537-1547-1557-40 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.537 to 1.547 GHz, Bandwidth 10 MHz, Insertion Loss 0.5 to 1 dB, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV5-1527-1537-1547-1557-40 can be seen below.