The AM707-737D1016 from Anatech Electronics is a RF Duplexer with Frequency 704 to 710 MHz / 734 to 740 MHz, Band 1 704 to 710 MHz, Band 2 734 to 740 MHz, Power 5 W, Insertion Loss 2.8 dB. Tags: Surface Mount, Ceramic. More details for AM707-737D1016 can be seen below.