The WRCGV12-1772.5-1787.5-1802.5-1817.5-80-1 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.7875 to 1.8025 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 WRCGV12-1772.5-1787.5-1802.5-1817.5-80-1 can be seen below.