The AM852-1400D1126 from Anatech Electronics is a RF Duplexer with Frequency 740 to 965 MHz / 1287.5 to 1512.5 MHz, Band 1 740 to 965 MHz, Band 2 1287.5 to 1512.5 MHz, Power 6 W, Insertion Loss 2.5 dB. Tags: Surface Mount, Ceramic. More details for AM852-1400D1126 can be seen below.