The AM782-751D1145 from Anatech Electronics is a RF Duplexer with Frequency 779.5 to 784.5 MHz / 748.5 to 753.5 MHz, Band 1 779.5 to 784.5 MHz, Band 2 748.5 to 753.5 MHz, Power 2 W, Insertion Loss 2.8 dB. Tags: Surface Mount, Ceramic. More details for AM782-751D1145 can be seen below.