The AM1227-1575D1094 from Anatech Electronics is a RF Duplexer with Frequency 1212 to 1242 MHz / 1560 to 1590 MHz, Band 1 1212 to 1242 MHz, Band 2 1560 to 1590 MHz, Power 1 W, Insertion Loss 0.8 dB. Tags: Surface Mount, Ceramic. More details for AM1227-1575D1094 can be seen below.