The WRCD5-1958.8-1959.8-1960.2-1961.2-40 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.9598 to 1.9602 GHz, Bandwidth 0.4 MHz, Insertion Loss 0.75 to 3 dB, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCD5-1958.8-1959.8-1960.2-1961.2-40 can be seen below.