The WRCD10-1958.135-1959.385-1960.615-1961.865-40 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.959385 to 1.960615 GHz, Bandwidth 1.23 MHz, Insertion Loss 1.25 to 3 dB, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCD10-1958.135-1959.385-1960.615-1961.865-40 can be seen below.