The AM758-1755D1024 from Anatech Electronics is a RF Duplexer with Frequency 749 to 767 MHz / 1732.5 to 1777.5 MHz, Band 1 749 to 767 MHz, Band 2 1732.5 to 1777.5 MHz, Power 2 W, Insertion Loss 2 dB. Tags: Surface Mount, Ceramic. More details for AM758-1755D1024 can be seen below.