The WRCGV6-1830-1850-1910-1930-30-2 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.85 to 1.91 GHz, Bandwidth 60 MHz, Insertion Loss 0.65 to 1 dB, Rejection 30 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV6-1830-1850-1910-1930-30-2 can be seen below.