The AE1800-2250DB5417 from Anatech Electronics is a RF Duplexer with Frequency 1.75 to 1.85 GHz / 2.2 to 2.3 GHz, Band 1 1.75 to 1.85 GHz, Band 2 2.2 to 2.3 GHz, Power 30 W, Insertion Loss 1 dB. Tags: Module with Connectors. More details for AE1800-2250DB5417 can be seen below.