The WRCGV6-1780-1805-1880-1905-20-2 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.805 to 1.88 GHz, Bandwidth 75 MHz, Insertion Loss 0.65 to 1 dB, Rejection 20 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV6-1780-1805-1880-1905-20-2 can be seen below.