The WRCGV5-1712.5-1737.5-1752.5-1777.5-20-1 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.7375 to 1.7525 GHz, Bandwidth 15 MHz, Insertion Loss 0.4 to 0.5 dB, Rejection 20 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV5-1712.5-1737.5-1752.5-1777.5-20-1 can be seen below.