The AM1617-2491D1076 from Anatech Electronics is a RF Duplexer with Frequency 1610 to 1625.5 MHz / 2484 to 2499.5 MHz, Band 1 1610 to 1625.5 MHz, Band 2 2484 to 2499.5 MHz, Power 2 W, Insertion Loss 2 dB. Tags: Surface Mount, Ceramic. More details for AM1617-2491D1076 can be seen below.