The WRCGV5-1937.5-1947.5-1952.5-1962.5-40-3 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.9475 to 1.9525 GHz, Bandwidth 5 MHz, Insertion Loss 0.5 to 1.25 dB, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV5-1937.5-1947.5-1952.5-1962.5-40-3 can be seen below.