The AE1543-1643DB986281 from Anatech Electronics is a RF Duplexer with Frequency 1.526 to 1.56 GHz / 1.625 to 1.662 GHz, Band 1 1.526 to 1.56 GHz, Band 2 1.625 to 1.662 GHz, Power 50 W, Insertion Loss 1 dB. Tags: Module with Connectors. More details for AE1543-1643DB986281 can be seen below.