The WRCD10-1879.2-1879.9-1880.1-1880.8-30 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.8799 to 1.8801 GHz, Bandwidth 0.2 MHz, Insertion Loss 1.25 to 3 dB, Rejection 30 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCD10-1879.2-1879.9-1880.1-1880.8-30 can be seen below.