The AM751-782D1071 from Anatech Electronics is a RF Duplexer with Frequency 746 to 756 MHz / 777 to 787 MHz, Band 1 746 to 756 MHz, Band 2 777 to 787 MHz, Power 2 W, Insertion Loss 3 dB. Tags: Surface Mount, Ceramic. More details for AM751-782D1071 can be seen below.