The AM897-943D1097 from Anatech Electronics is a RF Duplexer with Frequency 879 to 915 MHz / 925 to 961 MHz, Band 1 879 to 915 MHz, Band 2 925 to 961 MHz, Power 5 W, Insertion Loss 3.8 dB. Tags: Surface Mount, Ceramic. More details for AM897-943D1097 can be seen below.