The WRCTG12+16-1770-1775-1815-1820-80 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.775 to 1.815 GHz, Bandwidth 40 MHz, Insertion Loss 2 to 4 dB, Rejection 80 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCTG12+16-1770-1775-1815-1820-80 can be seen below.