The WRCD10-1959.4-1959.9-1960.1-1960.6-40 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.9599 to 1.9601 GHz, Bandwidth 0.2 MHz, Insertion Loss 1.25 to 4 dB, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCD10-1959.4-1959.9-1960.1-1960.6-40 can be seen below.