The AE1772-1867DB2018 from Anatech Electronics is a RF Duplexer with Frequency 1.76 to 1.785 GHz / 1.855 to 1.88 GHz, Band 1 1.76 to 1.785 GHz, Band 2 1.855 to 1.88 GHz, Power 50 W, Insertion Loss 0.5 dB. Tags: Module with Connectors. More details for AE1772-1867DB2018 can be seen below.