The WRCGV10-1830-1850-1910-1930-45-1 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.85 to 1.91 GHz, Bandwidth 60 MHz, Insertion Loss 0.75 to 1.25 dB, Rejection 45 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV10-1830-1850-1910-1930-45-1 can be seen below.