The AM713-743D1017 from Anatech Electronics is a RF Duplexer with Frequency 710 to 716 MHz / 740 to 746 MHz, Band 1 710 to 716 MHz, Band 2 740 to 746 MHz, Power 5 W, Insertion Loss 2.8 dB. Tags: Surface Mount, Ceramic. More details for AM713-743D1017 can be seen below.