The AM1882-1962D1124 from Anatech Electronics is a RF Duplexer with Frequency 1850 to 1915 MHz / 1930 to 1995 MHz, Band 1 1850 to 1915 MHz, Band 2 1930 to 1995 MHz, Power 3 W, Insertion Loss 3.8 dB. Tags: Surface Mount, Ceramic. More details for AM1882-1962D1124 can be seen below.