The AE1720-1814DB2024 from Anatech Electronics is a RF Duplexer with Frequency 1.709 to 1.73 GHz / 1.804 to 1.825 GHz, Band 1 1.709 to 1.73 GHz, Band 2 1.804 to 1.825 GHz, Power 50 W, Insertion Loss 0.5 dB. Tags: Module with Connectors. More details for AE1720-1814DB2024 can be seen below.