The AD1747-1842D335-N from Anatech Electronics is a RF Duplexer with Frequency 1710 to 1785 MHz / 1805 to 1880 MHz, Band 1 1710 to 1785 MHz, Band 2 1805 to 1880 MHz, Power 25 W, Insertion Loss 1.2 dB. Tags: Module with Connectors. More details for AD1747-1842D335-N can be seen below.