The AM1228-1569D1062 from Anatech Electronics is a RF Duplexer with Frequency 1157 to 1300 MHz / 1525 to 1614 MHz, Band 1 1157 to 1300 MHz, Band 2 1525 to 1614 MHz, Power 1 W, Insertion Loss 1.5 dB. Tags: Surface Mount, Ceramic. More details for AM1228-1569D1062 can be seen below.