The WRCGV12-1937.5-1952.5-1967.5-1982.5-80-3 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.9525 to 1.9675 GHz, Bandwidth 15 MHz, Insertion Loss 1 to 2 dB, Rejection 80 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV12-1937.5-1952.5-1967.5-1982.5-80-3 can be seen below.