The AM849-894D811 from Anatech Electronics is a RF Duplexer with Frequency 849 to 850.5 MHz / 894 to 895.5 MHz, Band 1 849 to 850.5 MHz, Band 2 894 to 895.5 MHz, Power 1 W, Insertion Loss 2.5 dB. Tags: Surface Mount, Ceramic. More details for AM849-894D811 can be seen below.