The WRCGV12-3538-3545-3555-3562-40-2 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 3.545 to 3.555 GHz, Bandwidth 10 MHz, Insertion Loss 2 to 3 dB, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV12-3538-3545-3555-3562-40-2 can be seen below.