The AD849-894D266 from Anatech Electronics is a RF Duplexer with Frequency 848.25 to 849.75 MHz / 893.25 to 894.75 MHz, Band 1 848.25 to 849.75 MHz, Band 2 893.25 to 894.75 MHz, Insertion Loss 2.5 dB, Isolation 70 dB. Tags: Module with Connectors. More details for AD849-894D266 can be seen below.