The AM2535-2655D1009 from Anatech Electronics is a RF Duplexer with Frequency 2.5 to 2.57 GHz / 2.62 to 2.69 GHz, Band 1 2500 to 2570 MHz, Band 2 2620 to 2690 MHz, Power 3 W, Insertion Loss 2.2 dB. Tags: Surface Mount, Ceramic. More details for AM2535-2655D1009 can be seen below.