The WRCD10-1879-1879.8-1880.2-1881-50 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.8798 to 1.8802 GHz, Bandwidth 0.4 MHz, Insertion Loss 1.25 to 3.5 dB, Rejection 50 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCD10-1879-1879.8-1880.2-1881-50 can be seen below.