The AE1745-2155DB5472 from Anatech Electronics is a RF Duplexer with Frequency 1.71 to 1.78 GHz / 2.11 to 2.2 GHz, Band 1 1.71 to 1.78 GHz, Band 2 2.11 to 2.2 GHz, Power 50 W, Insertion Loss 1 dB. Tags: Module with Connectors. More details for AE1745-2155DB5472 can be seen below.