The WRCD20-1730.5-1732.5-1747.5-1749.5-40 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.7325 to 1.7475 GHz, Bandwidth 15 MHz, Insertion Loss 2 to 3.5 dB, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCD20-1730.5-1732.5-1747.5-1749.5-40 can be seen below.