The AD808-849D381 from Anatech Electronics is a RF Duplexer with Frequency 791 to 826 MHz (Rx) / 832 to 867 MHz (Tx), Band 1 791 to 826 MHz (Rx), Band 2 832 to 867 MHz (Tx), Power 50 W, Insertion Loss 1.5 dB. Tags: Module with Connectors. More details for AD808-849D381 can be seen below.